高端精冲模具的制造探讨  

Study of manufacturing of high-end fineblanking tools

作　　者：张祥林[1] 曹传亮[1] 查想[1] 穆善和[1] 韩君武 

机构地区：[1]华中科技大学材料科学与工程学院,武汉430074 [2]玉门油田分公司机械厂,玉门735200

出　　处：《塑性工程学报》2013年第1期68-71,共4页Journal of Plasticity Engineering

基　　金：国家高档数控机床与基础制造装备科技重大专项资助项目(2009ZX04014-073)

摘　　要：精冲技术已越来越多的应用于成形更厚、更复杂零件,其模具寿命成为亟待解决的问题。文章从模具制造角度,采用理论分析和微观测试相结合方法,揭示基于粉末冶金模具材料的模具工件,分别在磨削、慢走丝线切割及表面PVD涂层工艺后的微观形貌和残余应力等的状况,并提出了相应的改善方法。The fineblanking is more and more used in forming complicated sheet parts.The tool life becomes a severe issue.From the view of tool manufacturing,the micromorphology imagines and residual stresses were presented and analyzed for test samples after grinding,wire EDM and surface PVD coating process,respectively.Methods for improving life were also proposed.

关 键 词：模具寿命 模具制造 磨削 线切割 PVD涂层 

分 类 号：TG385.2[金属学及工艺—金属压力加工]