For all those who are concerned about the quality and cost of mass-produced parts for automobiles, robots, precision equipment, etc.

This example is an electric power seat component for automobiles. The features of this product are the involute gear shape and the three-pronged structure on the lower right side of the photo. The part is used as an insert in a resin.

Initially, the three-pronged structure was considered to be knurled by rolling to prevent it from turning when inserted. However, there was a problem with strength, so we proposed a three-sided non-turn shape that could be formed by heading.

The customer was satisfied with the strength of the knurling, which had been an issue, and also succeeded in reducing costs by reducing the number of processes.
Arai Parts co., Ltd., which operates the "Cold Forging/VA/VE Center," is capable of proposing a change of production method to improve strength and quality. Please contact us if you have any problems with mass-produced products.