Precision machining free-cutting stainless steel material and a manufacturing method thereof

摘要

PROBLEM TO BE SOLVED: To provide a free-cutting stainless steel material for precise processing which can meet all of excellent cutting processing accuracy, machinability, corrosion resistance, and an enviromental property at the same time, and a method of manufacturing the same.;SOLUTION: The free-cutting stainless steel material for precise cutting is used for performing a shaping process by cutting at a micron meter level, and has such a structure that the free-cutting property giving material is made of h-BN particles and scattered in single state in the steel. The manufacturing method is characterized by heating the free-cutting stainless steel material for precise processing in which the h-BN particles are deposited, then rapidly cooling it to dissolve and extinguish the h-BN particles, and then, tempering it to disperse and deposite the h-BN particles again equally in the material.;COPYRIGHT: (C)2012,JPO&INPIT