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TC4钛合金激光焊接/超塑成形组合工艺研究
引用本文:张华,程东海,黄继华,赵兴科,陈树海.TC4钛合金激光焊接/超塑成形组合工艺研究[J].材料科学与工艺,2013,21(4):32-36.
作者姓名:张华  程东海  黄继华  赵兴科  陈树海
作者单位:北京科技大学材料科学与工程学院;南昌航空大学航空制造工程学院
基金项目:国家自然科学基金项目资助(4,1).
摘    要:本文将超塑成形(SPF)和激光焊接技术(LW)相结合,开发激光焊接/超塑成形组合工艺(LW/SPF),研究TC4钛合金激光叠焊接头的超塑性变形行为,并对超塑性变形前后的显微组织进行分析.结果表明,TC4钛合金激光叠焊接头能够承受焊板的变形,试样在母材断裂,并通过四层板的模拟件研制验证了超塑成形/激光焊组合工艺工业应用的可行性.

关 键 词:TC4钛合金  激光焊接/超塑成形  组合工艺  微观组织  叠焊接头
收稿时间:9/5/2012 12:00:00 AM

Study on the laser welding/superplastic deformation compoundprocedure of TC4 titanium alloy
ZHANG Hu,CHENG Dong-hai,HUANG Ji-hu,ZHAO Xing-ke and CHEN Shu-hai.Study on the laser welding/superplastic deformation compoundprocedure of TC4 titanium alloy[J].Materials Science and Technology,2013,21(4):32-36.
Authors:ZHANG Hu  CHENG Dong-hai  HUANG Ji-hu  ZHAO Xing-ke and CHEN Shu-hai
Institution:ZHANG Hua;CHENG Dong-hai;HUANG Ji-hua;ZHAO Xing-ke;CHEN Shu-hai;School of Materials Science and Engineering,University of Science and Technology Beijing;School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University;
Abstract:The goal of this paper was to study a new compound procedure of superplastic deformation /laser welding composite procedure to fabricate TC4 multi-layer structures.The superplastic deformation of the lap laser welded specimens was carried out,and the microstructures both as weld and after deformation were analyzed.The results indicated that Ti-6Al-4V laser lap weld joint could bear the superplastic deformation process and the fracture happened in the base metal,and a four-layer component was made to prove the practicability of LW/SPF.
Keywords:TC4 titanium alloy  laser welding/superplastic deformation  compound procedure  microstructure  lap laser weld
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