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Automatic transmission mechanism of automobiles has progressed especially in passenger cars the ratio of AT vehicles has become extremely large. As a result, the production quantity of clutch discs, which is one of the parts of the transmission mechanism, is also increasing, and parts manufacturers pay great effort to secure production volume and quality. A lot of parts to transmit power are incorporated in the automatic transmission inside of the car. In the clutch disc, there are various sizes and shapes according to specifications such as transmission torque. In the clutch disc which is the object of this research, a friction material made of special paper as a base material is adhered to both sides of a base material (iron type sheet metal) grooving processing for improving cooling efficiency is done on the surface of the friction material There. Since the quality of the disc directly affects the driving performance of the car, the quality of the friction surface is strictly controlled, in particular. The technical problem of a wet process clutch disc (DISC) having an important function about shifting is securing of stability of the power transmission torque in the catalytic action of shifting performance gain and DISC aspect each other automatic. That stabilization of the DISC board thickness precision controls in particular the change of the skin friction coefficient and reduces a shock phenomenon at the time of the shifting; have technical grounds. In this research, we designed the method of construction equipment which improved quality and productivity of DISC.

Study on surface modification of paper friction material by optimization design of clutch disk construction equipment for automobile AT