In this paper,the machinability of prehardened plastic mould steels ASSAB718 and GC718 were compared and studied. A software package called Thermo Calc was used for analyzing the non metallic inclusions in the steels.

• 对预硬型塑料模具钢ASSAB718和国产的GC718的切削加工性能进行了对比性研究 ,并结合Thermo Calc软件对钢中非金属夹杂物进行了分析。