10305 ウォータドライブ加エシステムによるダイヤモンド切削の試み(GS-02【成形・加工(2)】)

Abstract

Diamond turning and grinding are the critical processes to produce precise parts such as lenses and molds. In particular, these parts with small in size become increasingly important. Accordingly, ultra-precision machine tool that effectively machines these parts is desirable. Water driven turning system was thus developed for the single point diamond turning for machining micro parts with several millimeters. This machining system consists of the water driven spindle and the water driven stage. The spindle and stage equip water hydrostatic bearings and water driven mechanism. In the present paper, the single point diamond turnings are carried out using the water driven turning system. The experimental results show that the surface roughness of diamond turning is approximate 0.02 μm/Ra. The paper investigates the cause of relatively larger surface roughness in the experiments for achieving improvement of the machining performance of the developed machining system.