摘要
研究了非调质塑料模具钢的机械加工性能,通过切削加工性能对比实验证实,该塑料模具钢的可切削加工性能优于经调质处理的45号钢及P20塑料模具钢,并通过磨削、抛光性能实验证明该钢具有良好的磨、抛性能,经一般的磨削和抛光加工其粗糙度分别达到Ra<0.03μm和Ra<0.006μm,分析了S系,S-RE系以及S-Ca-RE系钢的易切削相,探讨了易切削机理。
The machirnability of unquenched and untempered die steel for plastic mouming is stud-ied.Compared with the commercially available quenched and tempered 0. 45 wt% carbonsteel and die steel P20 for plastic mouding, the steels developed are found to be superior inmachinability including chip breakability,cutting force,tool life,etc,It is also found thatthe steels are of good grindability and stability.After grinding and polishing,the surfaceroughness Ra<0.03 μm and<0.006 μm respectively are achieved.The free-cutting phasesin the S steel,S-RE steel and S-Ca-RE steel are analyzed and the free-cutting mechanism discussed.
出处
《华中理工大学学报》
CSCD
北大核心
1995年第12期7-11,共5页
Journal of Huazhong University of Science and Technology
基金
国家教委高等学校博士学科点专项科研基金
关键词
非调质钢
塑料模具
加工性能
unquenched and untempered steel
die steel for plastic moulding
machinability