抄録
This paper deals with the improvement of surface roughness on the ultra-precision cutting of austenitic stainless steels type 304 and 316. Austenitic stainless steels are well known as difficult-to-cut metals. The surface roughness of stainless steel is influenced considerably by the volume of work damaged layer in the field of ultra-precision cutting. The hardness of finished surface depends on the depth of cut and cutting speed. It was found that the work damaged layer is composed of martensitic structures. The deformation-induced martensitic transformation is occurred on the finished surface of austenitic stainless steels. The surface roughness Rz is obtained below 60nm(P-V) under the small effect of the deformation-induced martensitic transformation on the finished surface of SUS304 when the depth of cut is given 2μm.
