Technology and Equipment

Stamping and machining

Our stamping technology

Precision stamping

Our precision stamping is characterized by a processing system that controls and realizes highly accurate processing of thin sheets of difficult-to-process materials.
This system allows us to handle difficult-to-process materials such as stainless steel, titanium, and magnesium, which are subject to high levels of work hardening and spring back, according to client requirements.

In addition, in order to prevent dimensional changes during stamping, we have adopted a method of controlling the temperature of the tool and other components and a tool with a special coating technology.For products that require high levels of process-ability and precision (such as optical devices), we also use distortion-control heat treatment technology to achieve high strength and high precision.

Furthermore, we have succeeded in the mass production of ceramic tools, as a high-precision, long-life tools for difficult-to-process materials, for the first time in the world.

Case studies

  • Aluminum products

  • Titanium products

  • Magnesium products

Machining

We can mass produce products that require a high level of design and functionality that could not be achieved with conventional stamping technology.
Depending on the shape of the workpiece, an NC rotary table is used as a jig and tool, which reduces the number of machining processes and enables us to provide high-precision products at low cost.

The system also provides automatic product feed, automatic measurement and automatic compensation line setup.As the machine itself compensates for thermal variation, it is possible to process with stable dimensional accuracy in response to daily temperature changes and throughout the year.

Extra deep drawing

Extra deep drawing (EDD) is a processing method developed to improve the deep drawing process of metals.

It enables us to process materials that were previously difficult to draw and to improve the Yield rate.Moreover, products that could not be drawn without intermediate annealing (especially austenitic steinless / titanium, which has a high level of work hardening) can now be drawn almost without annealing. Furthermore, non-circular (oval, square, etc.) products can now be processed by extra deep drawing, which was not possible before, with almost the same process and cost as circular products.

Limits of drawing ratio and drawing height by material

Material SUS304 SUS304 Titanium SUS430LOW-C General SUS430 Aluminium
Drawing ratio D/d 6(3.5) 5(3.0) 4(3.5) 4(3.5) 3(3.0) 4(2.8)
Drawing height H/d 8(2.8) 7(2.0) 3.5(2.8) 3.5(2.8) 2(2.0) 6(1.7)

*d: diameter of product after drwaing, D: diameter of blank before drwaing, H: height of product after drwaing

Our equipment

  • Machining center

  • Automatic processing line of machining center

  • Automatic stamping line

  • Automatic machining line

  • Jig of machining center

  • 3D laser cutting machine

List of equipment

Hydraulic press

Single-action hydraulic press (30 t)
2
Single-action hydraulic press (40 t)
2

Mechanical servo press

Single-action mechanical press (45 t)
5 unit
Single-action mechanical press (75 t)
5 unit
Single-action mechanical press (110 t)
21 unit
Single-action mechanical press (150 t)
2 unit
Single-action servo press (80 t)
2 unit
Mechanical transfer press (2 machines of 250 t x 2 units)
1 set
Mechanical robot transfer line (110 t x 3 units + 150 t x 1 unit)
1 set
Mechanical robot transfer line (110 t x 3 units)
1 set

Machining

Lathe machine

Various machining centers
167 unit

Lathe machine

Lathe machine
4 unit

Others

Automatic stamping line
1 unit
Automatic machining line
1 unit
Jig of machining center
1 unit
3D laser cutting machine
1 unit