Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 13, 2017 - November 17, 2017
Acrylic resin is employed for optical products because it has a high transparency property. There optical components are required mirror finish to satisfy required optical properties. Acrylic resin is heat weak material because heat affected layer which worse transparency property is generated on machined surface. Hand polishing by skilled worker are carried out to remove heat affected layer generated by milling operation and to finish mirror surface of products surface, however, the polishing consumes long time and has problems that skilled workers are aging and next generation skilled workers are few. In this research, ultrasonic mirror finish machining for acrylic resin were carried to replace hand polishing by skilled worker to solve above problems. Machine tool which equips ultrasonic spindle system was employed the machining experiments to prevent heat affect during milling operation and sphere shape milling were carried out.
