Language: 日本語 | English
Language: 日本語 | English
Our company also performs injection molding using bio-plastics.
In particular, we focus on developing and producing products using biodegradable resin “PLA (Polylactic Acid)” made from plant starch and sugars.
This is a new molding solution that achieves a balance of functionality, design, and sustainability.
▪ Features and Technical Examples
- Achieved thin-wall molding with 100% PLA (without blending petroleum-based resins), which was previously considered difficult.
- World-first molding: wall thickness 0.65mm, flow length 135mm.
- Applied long-accumulated know-how from reflector molding, etc.
- Reduced resin usage through thin-wall design.
- Weight reduction using MuCell® (microcellular foaming system).
- Zero scrap with hot runner system.
- CO₂ emission reduction by replacing petroleum-based resins.
▪ Applications and Deployment
- Replacement of petroleum-based products with plant-derived materials.
- SDGs-conscious novelty products to enhance corporate appeal.
◎ Consultation
We handle everything from product planning, collaboration, mold manufacturing to mass production.
Please feel free to contact us for injection molding with resins other than PLA.
We also welcome inquiries for quotations and samples of our original products “Bio7”, “4Tiers”, and “N1”!
◎ Related Articles
PLA Glass “Bio7”: https://ja.nc-net.or.jp/company/1285/product/detail/265575/
PLA Glass “4Tiers”: https://ja.nc-net.or.jp/company/1285/product/detail/265576/
PLA Glass “Foam”: https://ja.nc-net.or.jp/company/1285/product/detail/265581/
Heat-Resistant PLA Mug “N1”: https://ja.nc-net.or.jp/company/1285/product/detail/265578/
◎ Contact
Nissin Precision Machines Co., Ltd. – Head Office
〒146-0095 2-29-21 Tamagawa, Ota-ku, Tokyo, Japan
TEL: 03-3758-1901
E-mail: gn_info@nissin-precision.com
Our company is engaged in the injection molding and sales of bio-plastics.
This time, we would like to introduce our original product, the ultra-thin bio-plastic glass “Bio7”.
▪ Product Information
- Product Name: Bio7
- Material: 100% PLA (Polylactic Acid)
- Capacity: 350mL
- Thickness: 0.65mm
- Dimensions: Rim diameter φ91mm × Height 105mm
- Certifications: BPI certified (certification for safe biodegradable products)
- Compliant with Food Sanitation Law (former Ministry of Health Notification No. 370)
▪ Artisan's Commitment
- Achieved this thinness and size with 100% PLA (no petroleum-derived materials blended) – world's first! ※According to our research
- Bottom is heptagonal – a rare design with auspicious meaning
- Designed to perfectly fit a beer can
- Rim thickness of 0.65mm for excellent mouthfeel
◎ Please feel free to contact us for sample requests, quotations, or consultation meetings.
◎ Related Articles
About the Technology:
https://ja.nc-net.or.jp/company/1285/product/detail/265574/
PLA Cup “4Tiers”:
https://ja.nc-net.or.jp/company/1285/product/detail/265576/
PLA Cup “Foam”:
https://ja.nc-net.or.jp/company/1285/product/detail/265581/
Heat-Resistant PLA Mug “N1”:
https://ja.nc-net.or.jp/company/1285/product/detail/265578/
◎ Contact
Nissin Precision Machines Co., Ltd. – Head Office
〒146-0095 2-29-21 Tamagawa, Ota-ku, Tokyo
TEL: 03-3758-1901
E-mail: gn_info@nissin-precision.com
Our company is engaged in the injection molding and sales of bio-plastic products.
This time, we would like to introduce the heat-resistant PLA mug “N1”.
▪ Product Information
- Product Name: N1
- Material: Heat-resistant PLA (Polylactic Acid)
- Capacity: 400mL
- Dimensions: Rim diameter φ98.5mm × Height 100mm
- Compliant with Food Sanitation Law (former Ministry of Health Notification No. 370)
▪ Artisan's Commitment
- World's first PLA mug with excellent heat retention and heat resistance
- Large capacity suitable for soups
- Handle designed for easy hanging to dry
- Safe even if you almost knock it over!
- Durable design that won't break if dropped
- Organic feel with unique color and marble patterns for each piece
◎ Please feel free to contact us for quotations or if you have any questions. We are happy to assist you!
◎Related Articles
About the Technology:
https://ja.nc-net.or.jp/company/1285/product/detail/265574/
PLA Cup “Bio7”:
https://ja.nc-net.or.jp/company/1285/product/detail/265575/
PLA Cup “4Tiers”:
https://ja.nc-net.or.jp/company/1285/product/detail/265576/
PLA Cup “Foam”:
https://ja.nc-net.or.jp/company/1285/product/detail/265581/
◎ Contact
Nissin Precision Machines Co., Ltd. – Head Office
〒146-0095 2-29-21 Tamagawa, Ota-ku, Tokyo
TEL: 03-3758-1901
E-mail: gn_info@nissin-precision.com
Y.M
Our company is manufacturing and selling the ultra-thin bio-plastic glasses “Bio7” and “4Tiers”!
This time, we would like to introduce the NEW version “Foam”.
▪ Features
- Pattern resembling foam bubbles.
- Unique bubble formation for each piece.
- Matte finish for a pleasant touch.
- Nitrogen is blown in at a supercritical state (the boundary between liquid and gas)!
- Foam is created by adjusting processing conditions while keeping the mold and material (PLA) unchanged!
◎ Priced the same as the transparent version!
Please feel free to contact us for sample requests, quotations, or consultation meetings.
◎Related Articles
About the Technology:
https://ja.nc-net.or.jp/company/1285/product/detail/265574/
PLA Cup “Bio7”:
https://ja.nc-net.or.jp/company/1285/product/detail/265575/
PLA Cup “4Tiers”:
https://ja.nc-net.or.jp/company/1285/product/detail/265576/
Heat-Resistant PLA Mug “N1”:
https://ja.nc-net.or.jp/company/1285/product/detail/265578/
◎ Contact
Nissin Precision Machines Co., Ltd. – Head Office
〒146-0095 2-29-21 Tamagawa, Ota-ku, Tokyo
TEL: 03-3758-1901
E-mail: gn_info@nissin-precision.com
Y.M
This time, we are pleased to introduce the “Tamagawa Large ‘Hashi’ Rest”!
We are grateful that it has been selected as one of the “100 Recommended Souvenirs of Ota City,” making it a carefully crafted item that also contributes to regional revitalization in Ota City.
Each piece is machined from a solid block of stainless steel, with variations in surface finishing and curved dimensions to achieve its refined form.
・Material – SUS304
・Tolerance – ±0.003
In addition to being used as a chopstick rest, it also makes a strong impression as a paperweight or decorative object.
This is a unique item that showcases our precision machining technology.
It is now on sale at the Ota City Tourist Information Center, so if you are visiting Ota City, please be sure to stop by!
*For more information about the “100 Recommended Souvenirs of Ota City,” please refer to the following link:
https://ota-mice-guide.jp/miyageweb/about/
Nippon Forming specializes in manufacturing stainless steel plate springs for control cable fastening, designed for use in harsh environments.
[Features]
• Use of highly durable stainless steel materials
• Customization according to customer needs
• Adaptability to various cable sizes
[Product Overview]
• Applications: Control cable fastening in factories, outdoors, and warehouses
• Material: Corrosion-resistant stainless steel
• Size: Adjustable to cable size and quantity
[Main Use Cases]
• Outdoor control cable fastening
• Factory wiring management
• Warehouse equipment cable retention
• Power facility cable management
• Wiring fastening for heavy machinery and industrial equipment
[Processing Technology]
• Materials: SUS301, SUS304, SUS316, SUS631
• Die design considering springback
• Size range: Developed length 30mm-130mm, plate width 1mm-50mm
[Nippon Forming's Strengths]
• Optimal design through detailed consultation
• Highly durable products designed for long-term use
• Products suitable for use under harsh conditions
Nippon Forming is a specialized manufacturer of precision-processed wire and strip materials.
We work with various materials ranging from 0.1 to 5mm in diameter. Complex shapes are achievable through NC control.
[Company Information]
Nippon Forming Co., Ltd.
Headquarter & Main Factory: 1-23-2 Kanamachi, Katsushika-ku, Tokyo
Tsukuba Factory: 2924 Ujikai, Ishioka-shi, Ibaraki
https://www.forming.jp/eng/
This time, we are pleased to introduce our 3D printer.
At our company, we use the “H2D” manufactured by Bambu Lab.
It achieves a high level of precision within ±0.05mm, which is considered excellent within the industry.
The maximum build size is 350 × 320 × 325 mm³.
The primary materials we use are plastic filaments such as PLA, ABS, and TPL.
Alongside manufacturing precision die components, our employees also utilize their creativity and ingenuity to develop original idea products (^▽^)/
We will be introducing several convenient items that we have produced in-house.
We plan to continue developing a wide variety of new products. Since the ideas generated internally are naturally limited, if there is something you would like us to try making, we would be delighted to receive your suggestions!
❀ Contact Information ❀
Nissin Precision Machines Co., Ltd. Head Office
〒146-0095, 2-29-21 Tamagawa, Ota-ku, Tokyo, Japan
TEL: 03-3758-1901
E-mail: gn.info@nissin-precision.com
Related URL: https://www.nissin-precision.com/products/precisiondie/
Person in charge: M.H
〈Photo: Side holes are also drilled〉
【Issues with Material Yield in Deep Drawing】
Deep drawing is a typical sheet metal forming process used to produce cylindrical or case-shaped components. However, manufacturing often faces issues such as:
・Uneven thickness during deep drawing
・Cracking at the bottom or shoulder areas
・Earing and wrinkling
・Large amounts of scrap after blanking
With rising material costs, scrap handling has become a critical factor affecting overall product competitiveness.
【What Is Deep Drawing】
〈Plastic forming that transforms sheet metal into 3D shapes〉
Deep drawing forms cup- or cylindrical shapes by pressing sheet metal with a punch and die.
Stable deep drawing requires:
・Proper blank diameter design based on material properties
・Optimization of blank holder force
・Appropriate punch and die radii (R)
・Controlled lubrication conditions
Kawamura Kikai Co., Ltd. operates 50 press machines (10–500 t) and supports processes such as deep drawing, bending, blanking, and trimming, backed by over 70 years of metal press expertise.
【Multi-Stage Scrap Utilization】
〈Maximizing material usage〉
The company reuses scrap from the first product to produce additional parts, sometimes up to four stages. Through optimized blank design and process planning, materials are used more efficiently while maintaining forming quality.
【Thickness Control Technology】
〈Preventing localized thinning〉
To prevent localized thinning, the company applies:
・Radius (R) design to control material flow
・Multi-stage forming to distribute forming loads
・Fine adjustment of blank holder force
・Process planning based on prior deformation history
These methods help achieve uniform thickness and stable product quality.
【Applications】
Typical deep-drawn components include:
・Motor cases
・Cover parts
・Cylindrical brackets
・Various housing components
Uniform thickness improves both appearance and durability, while scrap reuse enhances material yield and cost efficiency.
【Key Considerations When Evaluating Deep Drawing】
〈From single-part optimization to system optimization〉
Important factors include:
・Balance between required depth and sheet thickness
・Material strength and ductility
・Connection with downstream processes
・Potential improvement in material yield
If multiple parts can be produced from the same material sheet, blank layout and dimensional relationships should be optimized from the early design stage.
Because the company designs and manufactures dies in-house, it can quickly implement shape modifications and process improvements during prototyping, enabling efficient transition to mass production.
【Summary】
Deep drawing requires precise material flow control. By combining uniform thickness forming with multi-stage scrap utilization, manufacturers can improve material efficiency while maintaining product quality.
【Contact Information】
Kawamura Kikai Co., Ltd.
Head Office: 2-4 Shimizu-cho, Itabashi-ku, Tokyo 【Composite Division】
Hanazono Factory: 10 Kitane, Fukaya-shi, Saitama 【Metal Press Division】
Website: https://www.kawamura-kikai.co.jp
Inquiry / Quotation: https://www.kawamura-kikai.co.jp/contact/
Consultations are available from the early design stage for deep drawing and material reuse–oriented process design. Sharing drawings or current issues will help identify the optimal manufacturing approach.
This is an ultra-deep drawing process for nickel silver.
Dimensions: φ8mm, length 140mm, thickness 0.5mm.
We also have experience processing brass, aluminum, and stainless steel.
This is a component manufactured by applying an irregular-shaped ultra-deep drawing process to aluminum.
Approximate dimensions: 7mm × 20mm, length 150mm.
These are cosmetic exterior parts produced using a transfer press.
As they are exterior components, deep drawing and ironing processes are applied to achieve a smooth and refined surface finish.
A 30-ton transfer press used for multi-stage deep drawing of stainless steel.
A 20-ton transfer press for small parts.
We operate an 80-ton transfer press and produce 500,000 cosmetic exterior parts per month.
Nippon Forming is a specialized sheet metal processing manufacturer with over six decades of experience.
We provide high-precision processing using multi-forming machines.
[Features]
• Capability to handle complex shapes
• Processing that accounts for springback
• Expertise in processing non-standard materials
• Accommodating small-lot to mass production
[Main Applications]
• Automotive parts
• Electronic device terminals
• Medical device components
• Construction material parts
• Precision instrument components
[Processing Technology]
• Calculation of optimal bending angles
• Compatibility with various materials (stainless steel, brass, etc.)
• Processing capability from thin to thick sheets
[Nippon Forming's Strengths]
• Extensive experience and track record
• Consistent support from prototyping to mass production
• High-precision processing
Nippon Forming provides sheet metal processing solutions tailored to our customers' needs.
We efficiently manufacture high-quality products, accommodating materials with springback and complex shapes.
For inquiries about sheet metal processing, please contact Nippon Forming.
We will propose the most suitable processing method for your needs.
We are also a specialized manufacturer of precision-processed wire and strip materials. We work with various materials ranging from 0.1 to 5mm. Complex shapes are achievable through NC control.
[Company Information]
Nippon Forming Co., Ltd.
Headquarter & Main Factory: 1-23-2 Kanamachi, Katsushika-ku, Tokyo
Tsukuba Factory: 2924 Ujikai, Ishioka-shi, Ibaraki
https://www.forming.jp/eng/
Wire springs are essential components for energy storage and vibration absorption in machinery, widely used in applications ranging from automotive to medical devices.
[Features]
• Versatile material compatibility: Stainless steels including SWC, 60C, and SUS304
• Advanced processing techniques: Bending and punching of wire and shaped materials
• Broad application range: From precision instrument parts to everyday items
• Flexible production: Capable of small-lot production for various product types
[Applications]
• Automotive parts
• Medical devices
• Electronic device terminals
• Industrial and agricultural machinery
• Precision instrument components
[Nippon Forming's Strengths]
• Micro-processing technology
• Expertise in complex shape manufacturing
• Comprehensive quality control
We specialize in manufacturing wire springs tailored to our customers' specific requirements. Our production process ensures consistent quality control from material selection through to final production.
We also specialize in precision processing of wire and strip materials, accommodating diameters from 0.1 to 5mm. Our NC-controlled manufacturing enables complex shape production.
For inquiries regarding wire springs or custom orders, please don't hesitate to contact us.
[Company Information]
Nippon Forming Co., Ltd.
Headquarter & Main Factory: 1-23-2 Kanamachi, Katsushika-ku, Tokyo
Tsukuba Factory: 2924 Ujikai, Ishioka-shi, Ibaraki
https://www.forming.jp/eng/
Nippon Forming specializes in metal bending processing.
We perform high-precision processing for plate springs, wire springs, and metal fittings.
[Features]
• Adaptability to diverse shapes and materials
• Technical capability to meet complex requirements
• Precise bending and punching processing
• Capabilities from small-lot to mass production
[Main Products]
• Contact terminals
• Stoppers
• Various metal fittings
[Applications]
• Precision electronic devices
• Automotive parts
• Industrial equipment
• Communication devices
• Medical equipment
[Processing Technology]
• Bending process considering material characteristics
• Combination with punching process
• Compatibility with various materials (stainless steel, brass, shaped materials, etc.)
[Nippon Forming's Strengths]
• Product supply to a wide range of fields
• Consistent support from prototyping to mass production
• Continuous technological improvement
For inquiries about metal processing, please contact us. We manufacture high-quality products, accommodating complex shapes and special materials.
We are a specialized manufacturer of precision-processed wire and strip materials.
We work with various materials ranging from 0.1 to 5mm. Complex shapes are achievable through NC control.
[Company Information]
Nippon Forming Co., Ltd.
Headquarter & Main Factory: 1-23-2 Kanamachi, Katsushika-ku, Tokyo
Tsukuba Factory: 2924 Ujikai, Ishioka-shi, Ibaraki
https://www.forming.jp/eng/
Introducing the CARAD STAKE, a carbon fiber-reinforced plastic peg that achieves ultra-lightweight and high strength.
We are pleased to announce that general sales have begun. We would be delighted if you take this opportunity to try the CARAD STAKE. Please refer to the links below for purchase details.
1. Gulliver Online Shopping (Rakuten Store)
https://item.rakuten.co.jp/glv/crd-00000-jp/
2. Shinshu Yoshino Electric Official Website Shop (STORES)
https://sincere-tee.stores.jp/
This product is made using our unique Direct Fiber Injection Molding Method for CFRTP (Carbon Fiber Reinforced Thermoplastic) molding.
Material Composition:
The primary material is PA-based GF-reinforced material, with additional carbon fiber (CF) for further enhancement.
(CF can also be added to materials other than PA-based plastics.)
Compared to general long fiber pellets (LFP), our molding process ensures longer fiber retention within the molded product, resulting in a higher aspect ratio and increased strength.
Additionally, in-house compounding allows us to offer cost reduction proposals.
Product Details:
Size: 20mm × 15mm × 150mm
Production Volume: 1,000 units/day
Production Lead Time: 1.5–2.5 months
We also manufacture a variety of products for industries such as office automation (OA) equipment.
For insert molding and press processing, please contact Shinshu Yoshino Electric.
ShinciNatee
A smart and convenient golf accessory that combines a golf tee and fork into one compact design, making both your game and pockets more organized.
Now available in an eco-friendly version, “ShinciNatee eco”, made from biodegradable resin!
KanzashiTee
Loved by golfers and eco-conscious players, “KanzashiTee” is a biodegradable golf tee that returns to the earth.
Now launching “KanzashiTee II” with four new designs!
Carbon fiber materials widely used in the market are often CFRP (Carbon Fiber Reinforced Plastic) impregnated with thermosetting resin. Aircraft structures, golf club shafts, and fishing rods are typical examples made from CFRP. Because CFRP uses thermosetting resin, recycling is difficult. Research institutions and companies have been developing methods to recycle only the carbon fibers by heating the material to decompose the resin component.
Using this recycled carbon fiber, felt-like (nonwoven) materials have been developed. Our company is advancing technological development for molding processes using these materials. The upper photo shows the recycled carbon fiber nonwoven material, and the lower photo shows a molded product made from this material.
We actively propose the commercialization of products utilizing recycled carbon fiber.
A progressive die with a total of 25 processes, die length of 700mm, and a 150-ton press machine.
Material: SUS304CSP-1/2H (spring steel)
Thickness: t0.3mm
Processing elements included: Blanking, punching (round, square), right-angle bending, hemming, drawing, etc.
The more bending points there are, the exponentially more difficult it becomes to maintain overall precision.
We specialize in precision-demanding stamped parts with a high number of processes, from prototyping to mass production.
For more examples of complex-shaped products, click here:
https://www.kyowa-hearts.com/press/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■TEL:045-593-6116 FAX:045-593-6121
■Official website: https://www.kyowa-hearts.com
Material: Phosphor Bronze C5210R-1/2H, t0.15mm
Outer Diameter: φ2.3mm
Circularity: 0.03mm
At the customer's request, we designed a shape that secures the part inside the hole of the mating component.
For more examples of leaf spring products, click here:
https://www.kyowa-hearts.com/spling/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
Product Name: Sound Port (Hearing Aid Component)
Material: Phosphor Bronze C7521R-1/2H, t:0.1mm
Drawn Outer Diameter: Φ1.4mm
Product Dimensions: 3.2mm × 3.2mm
Total Height: 1.5mm
Key Points in Die Design:
Due to the non-circular drawn shape, innovative process design was necessary.
At Kyowa Hearts, we take on the challenge of new manufacturing technologies, including progressive deep drawing. This enables us to provide deep drawing as an alternative to conventional curling techniques for components requiring higher strength, offering customers greater flexibility in design and development.
We take full responsibility for the entire production process—from die design to final product—ensuring top-level precision and durability. With all operations, from prototyping to die design, manufacturing, and mass production, carried out at our Yokohama factory, we can respond flexibly and quickly to customer needs. Feel free to contact us.
For more deep drawing product examples, click here:
https://www.kyowa-hearts.com/sibori/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
Material: SUS304CSP
Thickness: t0.15mm
Processing Method: Press processing using progressive dies
It is possible to incorporate various processing elements into a small shape.
This product is a leaf spring with two contact points in different directions within a compact space.
When considering parts for weight reduction, multifunctionality, etc., please provide details regarding space constraints and required functions. We can consider the shape and make proposals.
For more examples of leaf spring products, click here:
https://www.kyowa-hearts.com/spling/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
【Product Specifications】
Thickness: 0.05mm
Material: Stainless Steel
Max Width: 2mm
Total Length: 3.6mm
Height: 0.7mm
Processing Method: Press processing using progressive dies
This is a low-load leaf spring designed to minimize applied force.
The die clearance is 2μm, which requires manual fine adjustments beyond the precision of machining tools.
Maintaining quality with minimal burrs is the key to press processing.
For more examples of leaf spring products, click here:
https://www.kyowa-hearts.com/spling/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
【Product Specifications】
Material: Phosphor Bronze
Thickness: 0.2
Shape:
φ1.9 (1 location)
φ3.7 (3 locations)
Total Length: 14
Application: Antenna Element
Precision in Concentricity & Coaxiality! Complex-Shaped Antenna Element
We successfully achieved concentricity and coaxiality within 0.03 for four interconnected circles of varying diameters, despite their unstable connections.
For more examples of leaf spring products, click here:
https://www.kyowa-hearts.com/spling/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
【Product Specifications】
Product Name: Leaf Spring for Socket Contact
Material: C5210R-H (Phosphor Bronze)
Thickness: t0.1
Total Length: 4
Inner Diameter:
Both Outer Sides: φ1.3mm
Center Section: φ0.8mm
Slit Dimensions: Width 0.3 × 6 slots
Roundness Accuracy: Within 0.05
Processing Method: Progressive Curling Processing
Key Explanation
Curling processing refers to the technique of rolling a flat sheet into a cylindrical shape.
The product shown in the image is a tsuzumi (drum) shape, where the center diameter in the length direction is larger than the diameters at both ends. Additionally, it is also possible to process a tawara (barrel) shape, which has a similar structure.
We can handle various spring materials, including phosphor bronze, beryllium copper, and stainless steel (SUS).
We have also successfully developed even smaller-sized components.
For more examples of leaf spring products, click here:
https://www.kyowa-hearts.com/spling/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
【Product Specifications】
Material: Brass C2680R-1/2H
Thickness: 0.64mm
Height: 4.5mm
Drawn Outer Diameter: φ4.6mm
Necked Section:
Outer Diameter: φ1.6mm
Inner Diameter: φ0.7mm
Processing Method: Progressive Deep Drawing
Key Explanation
Deep drawing is a forming process where pressure is applied to a sheet material to create a seamless, three-dimensional shape. This method is ideal for applications requiring airtightness and high strength.
Creating a necked section in the middle of the product presents a high level of difficulty.
Progressive deep drawing is well-suited for small, high-precision products. However, successful execution relies on experience and know-how that cannot be fully quantified.
For more examples of deep-drawn products, click here:
https://www.kyowa-hearts.com/sibori/
☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/
☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/
☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/
＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com
This is an irregular-shaped deep drawing process for aluminum.
Approximate dimensions: 8.5mm × 34mm, depth 80mm, thickness 0.45mm.
The photo shows deep drawing of pure titanium type 1, Φ6.3 × 40.
We also have experience processing the same shape using beta-type titanium alloy.
At Fuji Denshi, we manufacture high frequency induction heating machines.
We also have a heat treat plant at our headquarters In Yao, Osaka.
While we consider induction hardening our specialty,
we have also developed many technologies in other fields.
The photo shows brazing by induction. Compared to brazing by gas burner,
induction is more energy efficient and has higher repeatability.
We have supplied this induction solution to blade and tool manufacturers.
For customers considerig brazing solutions, feel free to contact us.
~High Frequency Induction Heating Brazing IH Brazing Heat Treat~
► Challenges faced by the Automotive Industry
In the automotive industry, suspension members are critical structural components that influence both vehicle safety and ride comfort. In recent years, there has been a growing demand for both weight reduction and high rigidity, making it particularly challenging to ensure welding quality.
Suspension components require both high welding strength and dimensional accuracy. In particular, suspension members directly absorb impacts from suspension parts, making welding reliability crucial for overall vehicle safety.
► Technical Challenges
Key challenges in manufacturing suspension members:
・Controlling thermal distortion caused by welding
・Ensuring uniform welding quality in complex shapes
・Establishing optimal welding conditions to reduce spatter adhesion
・Overcoming welding difficulties due to gaps between materials and differences in plate thickness
[Problem Solving with Welding Technology]
Through years of prototype development, we have established the following solutions with our unique welding technology:
✔ Development of a Thermal Deformation Control System
・ Suppressing distortion through optimized welding sequences and positions
・ Ensuring dimensional accuracy with custom-developed welding jigs
・ Managing heat input through machine-monitored current control
✔ Quality Assurance System
・ Full inspection using 3D measurement
・ Strength verification through destructive testing
・ Weld defect detection via macro inspections
►Proven Reliability
○ Customer Feedback
The stability of welding quality is outstanding.
I was amazed by the high dimensional accuracy.
The quick turnaround time is impressive.
►Implementation Benefits
Feedback from companies that have implemented our solutions:
・ Defect rate: Reduced by 75% compared to conventional methods
・ Manufacturing lead time: Shortened by 20%
・ Overall costs: Reduced by 15%
*For more detailed case studies and performance data, please download our technical materials from the link below:
Technical Materials Download: https://ja.nc-net.or.jp/company/22325/dl/catalog/207206
For any inquiries, please feel free to contact us via our technical consultation and quotation request form.
Technical Consultation & Quotation Request: https://ja.nc-net.or.jp/company/22325/inquiry/
[Company Profile]
Company Name: Timec Co., Ltd.
Address: 197-1 Nishigori, Soja City, Okayama, 719-1164, Japan
TEL: +81-866-93-1269
FAX: +81-866-93-2540
Corporate Website: https://timec.co.jp/
Related URL: https://timec.co.jp/mind/
Industry Challenges
In manufacturing prototyping, achieving both high quality and short lead times is a significant challenge. In particular, lower arm assemblies—key automotive suspension components—require exceptional strength and precise machining accuracy. However, shortening the development period for such parts has been a persistent challenge.
Technical Solutions
By combining press forming analysis, high-output hydraulic presses, and 3D laser machining technology, we effectively address these challenges. The production of lower arm assemblies demands deep drawing techniques for enhanced strength and precision shaping using 3D laser processing.
The Importance of Lower Arm Assemblies
As a critical component in a vehicle's suspension system, the lower arm assembly connects the chassis to the wheels, directly influencing driving stability and ride comfort. This makes high strength and precise dimensional accuracy essential.
Quality Assurance through Integrated Production
✔ Design Phase: Utilizing advanced 3D-CAD systems like CATIA
✔ Processing Stage: Deep drawing with a 1,200-ton hydraulic press and high-quality welding
✔ Quality Control: High-precision inspection using large-scale 3D measurement systems
Production System for Shorter Lead Times
24/7 production system to maximize manufacturing capacity
Integrated workflow from design to inspection
Optimized welding assembly with a synchronized-axis welding system
Implementation Results
✔ Development time: Reduced by up to 50%
✔ Costs: 30% reduction compared to conventional methods
✔ Improved precision and quality stability
Customer Feedback
The prototype period was significantly reduced, accelerating our product development. The quality is also stable, and the transition to mass production is smooth.
— Development Manager, Major Automotive Manufacturer
Download Technical Documents
We have prepared detailed case studies showcasing solutions to product development challenges, including:
✔ Know-how of high-difficulty press working
✔ Process flow for achieving short lead times
✔ Details of the quality assurance system
⇒ Click here to download the document: https://ja.nc-net.or.jp/company/22325/dl/catalog/207206
◎ Company Profile
Company Name: Timec Co., Ltd.
Location: 197-1 Nishigori, Soja City, Okayama Prefecture 719-1164
TEL: 0866-93-1269
FAX: 0866-93-2540
Corporate Website:
https://timec.co.jp/
Technical Consultation/Quotation Request: https://ja.nc-net.or.jp/company/22325/inquiry/
Related URL: https://timec.co.jp/
[Current State of Safety Components in the Automotive Industry]
In recent years, with the advancement of automotive safety performance, the placement of airbag systems has become increasingly diverse. Among these, inflator brackets have gained attention as critical functional components that reliably support the deployment force of airbags. These parts are designed to install tanks in small spaces, requiring precise design and manufacturing to deliver maximum performance within limited areas.
[Technical Challenges in Inflator Bracket Manufacturing]
When manufacturing primarily with mild steel sheets, the following technical challenges arise:
Strength design to withstand the impact of airbag deployment
Achieving optimal shapes within limited spaces
Controlling thermal deformation during welding
Ensuring quality stability during mass production
Achieving fine dimensional accuracy
[Solutions in Prototype Development]
► Problem Solving with Advanced Design Systems
Accurate representation of complex shapes using 3D design with CATIA
Pre-verification of issues through press forming simulation with JSTAMP/NV
Reducing rework by optimizing designs at the development stage
► Quality Assurance with High-Precision Processing Technology
Press forming using high-quality molds
Precision machining with 3D 5-axis laser cutting machines
Welding and assembly with diverse welding equipment
Fine adjustments achieved through skilled craftsmanship
► Establishment of Quality Assurance Systems
Full inspection using coordinate measuring machines (CMMs)
Operation of a quality management system based on ISO 9001
Ensuring reliability through non-destructive testing of welded joints
[Implementation Results and Achievements]
✔ Tangible Benefits Experienced by Customers
1. Reduced Development Time
Shorter lead times from design to production
Improved development efficiency through early issue detection
2. Stabilized Quality
Achieved defect rates of less than 0.1%
High-precision machining with dimensional accuracy of ±0.2mm
Minimized post-welding deformation
3. Cost Optimization
Cost reduction proposals during the design phase
Competitive pricing through efficient production systems
Reduced additional costs by minimizing rework
[Future Outlook and Technological Development]
With the electrification and lightweighting of automobiles, new demands are emerging for inflator brackets. To meet the high-performance requirements and diverse placement of airbags, our company is advancing further technological innovations through the following initiatives:
Enhanced compatibility with high-strength materials
Introduction of automation technologies
Utilization of digital twins
[Inquiries and Request for Materials]
We have prepared more detailed technical materials.
★ Download materials here
https://ja.nc-net.jp/company/22325/dl/catalog/207206
For technical consultations, feel free to contact us:
https://ja.nc-net.jp/company/22325/inquiry/
[Company Overview]
Timec Co., Ltd.
Address: 197-1 Nishigori, Soja City, Okayama Prefecture 719-1164, Japan
TEL: 0866-93-1269
FAX: 0866-93-2540
Corporate Website: https://timec.co.jp/
We have a track record in the design and manufacturing of automotive parts.
We have experience in the design and manufacturing of outboard motors (brazing), agricultural machinery (various frames and operational mechanism development), and construction materials.
This time, we are pleased to introduce a pipe used in agricultural machinery.
This product is used around the engine area of agricultural equipment.
The pipe is bent and processed to form the required inner diameter,
and flange forming is applied to determine the precise distance needed to attach the cover.
Accurate control of pipe diameter changes and proper flange forming are critical for this product.
★What Is a Flange?★
A flange is a disk-shaped protrusion or rim structure used at pipe connections and similar joints.
It reinforces piping and is used to secure or connect components with bolts and other fasteners.
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Apollo Kogyo Co., Ltd.
〒342-002, 2405 Miwanoe, Yoshikawa-shi, Saitama-ken, Japan
TEL: +81-48-981-5156
FAX: +81-48-981-5157
Website: https://www.apollo-kk.co.jp
Contact: Mr. Oda
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We are pleased to introduce a processed pipe component used in agricultural machinery engines.
The pipe is bent to form an accurate inner diameter and flange forming is applied to precisely control the height required for cover attachment.
Because changes in pipe diameter and the accuracy of the flange shape are critical,
advanced press forming technology and high-precision dies are indispensable.
★What is Flange Forming?★
Flange forming is a process in which the end of a pipe is shaped into a disk-like protrusion for bolted connections.
It allows easy creation of threaded holes, reduces dirt accumulation and enables strong welding.
Apollo Kogyo has extensive expertise in pipe forming techniques such as bulging, ironing and polishing, and bending.
We handle a wide range of materials including SPCC, SPHC, SUS, titanium, oxygen-free copper, and Permalloy.
Based in Saitama, we support nationwide and overseas deliveries. Please feel free to contact us.
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Apollo Kogyo Co., Ltd.
〒342-002, 2405 Miwanoe, Yoshikawa-shi, Saitama-ken, Japan
TEL: +81-48-981-5156
FAX: +81-48-981-5157
Website: https://www.apollo-kk.co.jp
Contact: Mr. Oda
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This is a component that was traditionally manufactured through machine processing but has now been converted to press processing using stainless steel deep drawing.
A notable achievement is the successful creation of an O-ring groove.
Approximate dimensions: Total length 37mm, φ12.5mm, flange φ19mm
O-ring groove: φ9.2mm, width 2.3mm.
A stainless steel part processed with multi-stage deep drawing and necking.
Approximate dimensions:
Diameters: φ13.6mm – φ25mm – φ29mm
Necking diameter: φ23mm
Total length: 35mm
This product is manufactured using C1100 material with a sheet thickness of 1.6 mm.
From the initial shape to the final product shape, no machining processes are used.
Dimensions: 9 × 9 × t3.4
Tolerance: ±0.1
Post-press process: Nickel plating
Application: Power diodes designed to meet a wide range of needs, from general consumer and industrial equipment to automotive and electrical applications.
⁂ Dimensional and shape accuracy are ensured through in-process and final inspections using coordinate measuring machines (CMMs) and non-contact laser measuring devices, guaranteeing product functionality and reliability.
With many years of experience and proven technical expertise, we support manufacturing tailored to our customers’ needs.
※For inquiries, please contact us at the details below.
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Ohnuki Kogyosho Co., Ltd.
Sales & Production Control Department
Takuya Osumi / Miu Wada
📩 infoh@ohnuki.co.jp
📞 0294-53-3821
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Carbon fiber–based composites are the mainstream in composite molding. However, Kawamura Kikai Co., Ltd. has developed its own intermediate materials (prepregs) using natural fibers.
The material shown in the image is made from naturally derived resin (hemicellulose) and natural fiber (cacao husk). Naturally, this prepreg can also be used for composite molding applications.
In addition, we are developing bio-based and natural fiber materials such as bio-resin PA11 (derived from castor oil) manufactured by Arkema, as well as natural fibers including FLAX, HEMP, and coconut fiber.
We welcome inquiries from those seeking natural fiber–based composite materials.
We have extensive experience in processing using steel materials.
Pin forming, which conventionally involved caulking in the assembly process, can now be fully completed within our progressive dies.
The pin forming (erecting) combined with bulging process has practical applications in positioning for copiers, stators, and solenoid functional components for automotive use.
【Product Details】
Material: SPC (cold-rolled steel)
Plate Thickness: 1.0mm
Industry: Industrial Machinery
Processing Method: Progressive Press Die
Contact Information
Nissin Precision Machines Co., Ltd. – Head Office
〒146-0095, 2-29-21 Tamagawa, Ota-ku, Tokyo 146-0095, Japan
📞 Tel: +81-3-3758-1901
📧 E-mail: gn_info@nissin-precision.com
Contact Person: F.N
