汽车内饰件裁断模具刃口性能的研究  

Research on knife-edge capability of cutting die for automotive interior trim

作　　者：李冬冬[1] 王勇[1] 吴晓炜[1] 陆文林[1] 

机构地区：[1]北京机电研究所,北京100083

出　　处：《锻压技术》2010年第4期124-128,共5页Forging & Stamping Technology

基　　金：国家科技重大专项资助项目(2009ZX040B-031)

摘　　要：通过金相理论和硬度理论,建立了实验试件的模形,对裁断模具刃口材料与基体材料的冶金结合效果及模具刃口的表面实际硬度进行了实验研究。焊丝的金相组织以马氏体为主,焊丝与基材的过渡区域组织均匀。焊接试件的表面硬度值在44～61HRC之间,符合裁断要求。结果表明,提出的裁断刃口制造工艺完全满足非金属材料裁断的需求。On the basis of metallography theory and rigidity theory,specimen model was founded to research the metallurgy combination result of knife-edge and basis material and hardness of die knife-edge surface.Martensite was the primary metallographic structure of welding wire.The transition area structure of welding wire and basis material was even.It is in line with stamp requirement that surface HRC of welding specimens should be between 44 and 61.The result show that instituted machining technics of cutting die knife-edge have been satisfied with nonmetallic material cutting.

关 键 词：裁断模具 模具刃口 焊接金相 刃口硬度 堆焊高度 

分 类 号：TG385.2[金属学及工艺—金属压力加工]