Toyooka Seisakusho Co., Ltd.

Stainless Steel Deep Drawing

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.

Reverse Drawing Process

This part, previously assembled using a combination of resin and machined components, has been integrally formed using the reverse drawing process.

The conventional product (resin + machined parts) had issues with airtightness, which were resolved by integrating the parts into a single piece. Additionally, this reduced the assembly workload.

Approximate dimensions: Outer drawing φ18.2mm, inner drawing φ9.9mm, total length 19mm.

Multi-Stage Deep Drawing & Necking Process – SUS

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

Deep Drawing & Piercing Process – SUS

A stainless steel part manufactured using deep drawing method.

The deep drawing process is performed using a transfer press, followed by a single-stage process to create 33 piercing holes.

Approximate dimensions:

Outer diameter: φ16mm
Total length: 54mm
Hole sizes: φ2mm × 31 holes, φ3mm × 2 holes

Press Groove Processing – Simultaneous Processing (8 Locations)

We successfully achieved cost reduction by producing a component, which previously required post-press cutting to create 0.35mm-deep grooves on the inner walls (0.7mm thickness) of a square-drawn part, using simultaneous press processing at 8 locations.

Additionally, the outer surface shows almost no traces of the inner groove processing, making it suitable for use as an exterior component.

Approximate dimensions: 45mm × 45mm, height 7mm
Material: Brass (C2680 1/4H)

Ultra-Deep Drawing

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.

Deep Drawing, Irregular Shape

This is a component manufactured by applying an irregular-shaped ultra-deep drawing process to aluminum.

Approximate dimensions: 7mm × 20mm, length 150mm.

Multi-Stage Drawing

A component produced through multi-stage drawing using a transfer press.

Approximate dimensions: φ8mm - φ12mm - φ22mm, height 17mm.

Irregular-Shaped Deep Drawing Process

This is an irregular-shaped deep drawing process for aluminum.

Approximate dimensions: 8.5mm × 34mm, depth 80mm, thickness 0.45mm.

Aluminum Multi-Stage Deep Drawing, Exterior Parts

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.

Square Tube Deep Drawing and Ironing Process

This is a deep drawing process for square copper tubes.

Manufactured from 0.6mm thick material using deep drawing and ironing processes.

Approximate dimensions: 9mm × 9mm, depth 68mm, sidewall thickness 0.25mm.

Transfer Press

A 30-ton transfer press used for multi-stage deep drawing of stainless steel.

Cold Forging Die

A die used for forward and backward extrusion of copper with a 160-ton cold forging press (knuckle joint press).

Transfer Press

A 20-ton transfer press for small parts.

Transfer Press

We operate an 80-ton transfer press and produce 500,000 cosmetic exterior parts per month.

Titanium, Deep Drawing

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.

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