DIES FOR AUTOMOTIVE PARTS

We have developed a high-cycle shearing technology which uses a hydraulic pressure device equipped with a locking device and a high-rigidity press.

A simpler fall-through punching technology that we have developped can also bring an equivalent shear cut surface quality without the help of a hydraulic device.

Some of the dies we made with the technology only required maintenance grinding after each 100,000 shots while maintaining a sheared surface ratio of more 70% at a production speed of 80 Shots/mn.

This technology has been used in dies used for the production of powertrain parts requiring a long sheared surface and a high precision, such as torsion dampers or clutch plates.

This production methods achieves complex forming processes within few operations by using hydraulic pressure. The die of the picture below performs half-blanking, dowel forming and small module gears forming and blanking in 3 operations.

From 1970, Showa Precision Tools has been designing and manufacturing Fineblanking Dies mostly for the car industry. Before fineblanking technology, hole piecings on thick plates, hobbing, bump forming, long sheared cut etc, had to be obtained with out-of-press separate processes.

Our fineblanking dies are tried in-house on our Mori FB800-FDE Press for quality and performance checks.

Seat Recliner parts, breaking pads and other security and safety parts have to be blanked and formed with high precision dies.

Some of the fineblanking dies we have designed and manufactured have been used for the production of silent chains used in engines and sprocket wheel, transmission clutch plates, and parking pawls.