超音波振動を援用した金型の鏡面仕上げ加工(第2報) : 自作電着工具による加工試験・研削挙動の観察

概要

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Dies for injection molding parts such as cellular phones and light conductive parts require a high quality surface finish in terms of both appearance and integrity. Manual finishing is an important die manufacturing process, which decides the surface roughness of a die and influence the accuracy of its shape. However, manual polishing consumes several days to finish the die surface. Therefore, high precision die milling or grinding are required that improve surface roughness, in order to minimize polishing operation. In the previous report, ultrasonically diamond grinding experiments were carried out to confirm ultrasonically oscillation effect for die steel face grinding. And mirror surface was obtained. However, tool form error and run-out prevent 3D form mirror grinding. Because high shape accuracy tools are essential for high precision 3D form grinding. This paper provides results of toolmaking and performances of electroplated tools in ultrasonically assisted grinding. Electroplated tools can perform ultrasonically assisted face grinding and ground surface has roughness 0.24μmRz.
公益社団法人精密工学会の論文
2007-04-05