Achieving a thick plate press that can create a shear surface as smooth as a mirror without additional processing!
In any case, a beautiful mirror-like shear surface has been achieved with a thick plate press (0.5mm to 12mm) using a servo press.
The feature is that "we achieve a beautifully mirror-like shear surface with a standard press." Typically, when punching with a press, a fracture surface occurs, and especially when creating precision or mechanical parts from difficult-to-machine materials like SCM or S45C, additional processing to handle the fracture surface created during punching was necessary. However, it has become possible to manufacture thick press parts with shear surfaces comparable to fine blanking, and with a mirror-like finish and smoothness, using a standard servo press. In particular, for thick press parts where additional processing was required to achieve cutting surface precision, there is a possibility of eliminating finishing processes! By utilizing this precision pressing technology for thick press parts, we have achieved high cost competitiveness, including mold costs and processing costs.
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basic information
Thickness: 0.5mm to 12mm Material: Ordinary steel such as SS400, SPCC, SPHC Galvanized steel sheets such as SPGC, SECC Carbon steel and special steel such as S45C, SCM Stainless steel such as SUS430, SUS304 Aluminum such as A5051, A6062
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Applications/Examples of results
We have a wide range of mass production achievements, primarily for automotive applications and extending to industrial equipment applications. - Plate thickness: 5-6mm, brake-related components - Plate thickness: 6mm, precision stamping of S45C - Plate thickness: 4.5mm, precision stamping of SUS304 gears followed by shaving processing with a tolerance of ±30μ - Plate thickness: 5mm, SPCC, shear length of gear parts over 90% - Plate thickness: 5mm, SPHC, simultaneous processing of outer diameter cutting, hole drilling, and chamfering - Plate thickness: 3.5-4.5mm, SCM415 ring-shaped components, shear length of the outer circumference over 90%. Finished with barrel polishing to a surface roughness of Ra0.4 or less. Rather than forcing a progressive die process to complete the work, we utilize machining centers and high-performance drill presses as needed, allowing for overall improvements in quality and production efficiency. We can propose cost-effective processing that includes precision chamfering, hole drilling, and light milling as required.
Company information
Founded 91 years ago as "Yashima Automobile Parts Trading Company," our company originated from the automotive parts division of Yashima Motor Co., which was the general importer of Chrysler vehicles in 1926. Over the years, we evolved from supplying repair parts to directly providing mass-produced components to automobile manufacturers, in line with the pre-war and post-war trends of domestic automobile production. At the time of our establishment, the Toranomon area was referred to as Japan's Detroit, yet there were almost no domestic vehicles present, and we had been engaged in automotive-related business even before the domestic production of automobiles began. Today, we have transformed and grown into a technical trading company that directly supplies and sells mass-produced parts to major automobile manufacturers and construction machinery manufacturers. We support the development departments of manufacturers with technical proposals and assist the procurement departments with global parts sourcing, providing mass production solutions for a wide range of products, from resin molded products, semiconductors, electronic components, and sensors to inverters and onboard motors that make up electric vehicles. Notably, the next-generation onboard electrification components have significantly increased, with mass production sales reaching an annual scale of 6 billion yen.
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