Development of lathe type NC machining device for hard-brittle materials under external hydrostatic pressure

抄録

This paper reports a newly developed lathe type NC machining device that works in a high pressure chamber, where up to 400 Moa can be applied, in order to realize damage free machining of hard-brittle materials. The machining device equips a turntable and accurate X-Y stages, whose resolution is less than 1 μm. It is confirmed that the machining device works well even under high hydrostatic pressure. This paper also reports machining test of soda glass plates under hydrostatic pressure up to 100 Moa. Results show that the critical depth of cut can be magnified by high hydrostatic pressure.