45#钢表面激光熔覆Ni35B+WC制造冲压模具试验研究  

Manufacturing Stamping Die by Laser Cladding Ni35B+WC on the Surface of 45 Steel

作　　者：刘喜明[1] 谢冀江[2] 陈华[1] 

机构地区：[1]长春工业大学,吉林长春130012 [2]中国科学院激光与物质相互作用国家重点实验室,吉林长春130033

出　　处：《稀有金属材料与工程》2013年第S2期247-250,共4页Rare Metal Materials and Engineering

基　　金：吉林省高新技术项目(20070305)

摘　　要：采用激光熔覆技术在45钢表面熔覆Ni35B+WC合金,研究了不同WC加入量对熔覆层显微组织、硬度和抗磨损性能的影响。实验证明随着WC加入量的增加,激光熔覆层的硬度、耐磨性提高。研究了搭接激光熔覆工艺获得的熔覆层的结构特性,指出WC加入量在40%～45%时,可获得完整的激光熔覆层,适合制作低冲击应力下使用的冲压模具。Ni35B+WC alloy powder was coated on the surface of 45 steel by a laser cladding technique.The effects of WC content on the microstructure,hardness and wear resistance were studied.Results show that hardness and wear resistance of the coating layer is enhanced with increasing WC content.The characteristics of the coating layer structure obtained by laser overlapping cladding technique were researched.A that complete coating layer with 40%～45% WC addition can be obtained,and this steel is suitable for production of stamping dies at low impact stress.

关 键 词：激光熔覆 Ni35B+WC 冲压模具 

分 类 号：TG385[金属学及工艺—金属压力加工] TG174.4