Precision Metal Stamping

Method
From the guarantee of dimensions to the guarantee of functionality: Residual thickness and operating pressure of the lithium-ion battery explosion proof system.

A supreme coining technology that reduces the material thickness of 1 mm to 0.01 to 0.03 mm as a product part
- A function verification technology was added to the guarantee of the coined form (residual thickness), to provide an extra guarantee of the functional characteristics, namely the destruction at the specified operating pressure.
- To ensure the overall functional characteristics, the product was created on the basis of Xerom’s product design capabilities, to introduce peripheral elemental technologies in combination with the stamping technology.

Method
Coining for creating a reverse taper form to reduce the number of parts from two to one

- A cam mechanism was incorporated into the metal die to achieve a reverse taper.
- To ensure the flatness and roundness of the top plane, simulation settings on the stamped quantity of the material and the displacement of the stamped material were made independently.
- In addition, a material with a thickness of 0.80 mm was used to meet the height requirement of 1.19 mm, to achieve additional cost savings.

Method
Stamping in place of etching to achieve the crosspiece width of 0.085 ± 0.005 mm

The processing precision for the stripper plate and other metal die parts was increased to the highest possible level, to better hold the ultra-fine crosspiece.

Method
A punching technology for composite materials (with amorphous lamination)

The amorphous structure was so hard and fragile that it was very difficult to process.
Xerom conducted joint development activities with laboratory engineers to establish a stamping technology.
- Ultimate clearance settings
- Ultra-hard particles were adopted as a material for cutting blades. The punch die was added with special coating to maintain its high level of hardness and thereby to increase its productivity.
- Production took place without oil feed to avoid oil penetration into the adhesive.

Method
Ultra-thin blanking. Preposition of stamping instead of etching.

The material was very thin and tenacious. This product was traditionally processed by etching but stamping was proposed given that etching would result in great unevenness in product quality and a poor yield.
Material: Tough pitch copper
Thickness: 0.04 mm

Method
Precision punching and bending of ultra-thin and small materials: Diminutive blanked and bent products

The material had a thickness of 80 μm. Involving rectangular blanking, the processing is likely to cause irregularities of the bent part. The problem was sorted out by improving the clearance settings and the part processing precision.
When slightly bending the material to make rounded corners, the blanking size is likely to vary. This problem was also resolved by improving the settings and processing precision.
Size: 1.3 mm x 1.2 mm x 0.3 mm
Material: Phosphor bronze

Method
Precision drawing of high-strength, non-magnetic stainless steel

This product was unique in that it was produced from high-strength, non-magnetic stainless steel that is very difficult to draw and that no burr or scrape was permitted, as the product was designed for medical purposes. The tolerance conditions were also very tight. The level difference between the punching region of the bottom of the product and the lateral side of the drawn hole was not allowed to exceed 20 μm or less and the deviation in dimensions excluding the product height had to be within ± 30 μm.