钢与铜合金超塑焊接接头形成过程分析  

Analysis on Forming Process of Superplastic Welding Joint of Steel and Copper Alloy

作　　者：韩彩霞[1] 

机构地区：[1]威海职业(技术)学院机电工程系,山东威海264210

出　　处：《热加工工艺》2008年第1期36-37,41,共3页Hot Working Technology

基　　金：甘肃工业大学省部共建有色金属新材料国家重点实验室基金[2003];华中科技大学激光技术国家重点实验室开放基金([2001]0110);河南省教育厅自然科学基金(2003430211)

摘　　要：基于40Cr待焊面表层实施激光淬火组织超细化处理后,与QCr0.5异材实施恒温超塑性固态焊接可行性分析的基础上,探讨了恒温超塑性固态焊接的接头形成过程。试验结果表明:在40Cr与QCr0.5超塑性固态焊接的过程中,硬度较低的QCr0.5首先在硬度较高的40Cr焊接面凸起处粘结,同时发生元素扩散,随焊接过程的进行,粘结物逐渐增多,元素扩散加剧,最终实现异材的超塑性固态连接。Based on analysis of the probability for isothermal superplastic solid-state welding of different base metals of 40Cr and QCr0.5, the structure ultrafmc treatment of the welding surface of 40Cr could be made by laser surface quenching, and the forming process of the joints of isothermal supcrplastic solid-state welding was explored. The experimental results indicate that, in the course of supcrplastic solid-state welding of 40Cr and QCr0.5, QCr0.5 with lower hardness sticks firstly at welding surface＇s projecting of 40Cr with higher harness, and the clement diffusions occur in the meantime. Along with the welding process, sticking substances increase gradually and elements diffusing become fast. Supcrplastic solid-state welding of different materials is implemented finally.

关 键 词：钢 铬青铜 固态焊接 接头 粘结物 

分 类 号：TG453[金属学及工艺—焊接]