Volkswagen transmission connecting rod

Applicable models Lavida. Long lines. Skoda, connecting rod thread by thread rolling processing thread, the ring rolling wheel, rounded crest small, round bottom dome, the customer had previously used a brand of Taiwan screw rolling wheel, unstable size accuracy, tooth top bottom teeth arc contour is not up to the requirements of customers life 27000.
Customers find Rothschild trial, trial production for the first time the dimensional accuracy is good, tooth top teeth arc bottom exceed customer expectations, but life is not good, only 12000 pieces, and three times before the life are between the 12000-25000 wandering, because rounded crest is too small, the main failure are is second end tooth collapsing and calibration of teeth but no collapse teeth, no wear and tear.
In view of the above failure forms, our modified thread rolling wheel design, the fourth try life reached 60000 pieces, and follow-up life has been stable at around 60000 pieces, thread rolling wheel life exceed customer expectations, dramatically reducing the processing cost of the customers.
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