一、诸言奥氏体高锰钢一般称为Hadfield钢,其特点是具有优良的韧性,冷加工产生显著的硬化现象,具有良好的耐磨性能。然而,显著的硬化现象使可切削性能恶化,尤其是孔加工更是非常困难,本文报导了用一般的高速钢钻头对Hadfield钢进行孔加工的情况,明确了钻头刚性对寿命产生的显著影响。 First, the Zhuo austenitic high manganese steel generally known as Hadfield steel, which is characterized by excellent toughness, cold work produce significant hardening phenomenon, has good wear resistance. However, the remarkable hardenability deteriorates the machinability, especially the machining of holes. It is reported in this paper that the hole machining of Hadfield steel with a common high-speed steel drill bit shows the significant influence of bit rigidity on the service life.