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操作存亡单位法成立了 2024铝合金薄板光纤激光焊接和 TIG焊接的有限元模子, 比拟研究了自由焊和羁绊焊条件下的焊接变形特征及纪律, 功效发明激光焊接和 TIG焊接铝合金薄板的变形特征均为垂直焊缝偏向为角变形, 平行焊缝偏向为挠曲变形, 个中 TIG焊的焊接变形量显著大于光纤激光焊。基于激光三角测距道理成立了焊件变形丈量装置, 并对焊缝偏向和垂直于焊缝偏向的变形举办了丈量。功效表白, 去除夹具约束后薄板焊件会在应力浸染下进一步产生变形, 最终焊接变形量的计较功效与尝试丈量功效吻合较好。

要害词

Abstract

A fintie element model for laser welding and TIG welding of 2024 aluminum alloy was developed by using the birth-deathelement method,and the welding deformations of the laser welding 2024 aluminum alloy sheets and the TIG welding 2024 aluminumalloy sheets in unconstrained conditions and constraint conditions were investigated,respectively.It was found that the deformations ofthe 2024 aluminum alloy sheets obtained by laser welding and TIG welding were all angular distortion normal to the welding directionand flexural deformation parallel to the welding direction.It was also found that the deformations of the sheets obtained by TIGwelding are much larger than those obtained by laser welding.Further,a device was developed to measure the deformations of thewelding sheets based on the laser triangulation,and the deformations normal to the welding direction and parallel to the weldingdirection were measured.It was found that the deformations of the sheets increased after the removal of the clamps.The simulationsagreed well with the experimental results.

增补资料

中图分类号：TN 249

DOI：10.3788/al20113105.0361

基金项目：西北家产大学凝固技能国度重点尝试室开放课题扶助项目 (SKLSP201102); 中国博士后科学基金扶助项目(20110491683); 中央高校根基科研业务费专项扶助项目 (CHD2009JC107)

收稿日期：2011-08-05

修改稿日期：2011-09-05

网络出书日期：--

作者单元    点击查察

张凤英：长安大学质料科学与工程学院, 陕西 西安 710064
谭华：西北家产大学凝固技能国度重点尝试室, 陕西 西安 710072
陈静：西北家产大学凝固技能国度重点尝试室, 陕西 西安 710072
邓娟莉：长安大学质料科学与工程学院, 陕西 西安 710064西北家产大学凝固技能国度重点尝试室, 陕西 西安 710072

接洽人作者：张凤英(zhangfengying@chd.edu.cn)

备注：张凤英 (1980-), 女, 讲师, 主要从事激光加工方面的研究。

【1】LIU BING, PENG CHAOQUN, WANG RICHU, et al. Recent development and prospects for giant plane aluminum alloys [J]. The Chinese Journal of Nonferrous Metals, 2010, 20(9): 1705~1715.
刘兵, 彭超群, 王日初, 等.大飞机用铝合金的研究近况及展望[J].中国有色金属学报, 2010, 20(9): 1705-1715.

【2】王祝堂 .汽车家产的成长与铝 [J].轻合金加工技能, 2011,39(1):7-15. WANG ZHUTANG. Relationship between growth of car industry and aluminum[J]. Light alloy fabrication technology, 2011,39(1):7-15.

【3】ANCONA A, LUGARA P M, SORGENTE D, et al. Mechanical characterization of CO2 laser beam butt welds of AA 5083 [J]. Journal of Materials Processing and Technology, 2007, 191: 381~384.

【4】LI LIQUN, CHEN YANBIN, TAO WANG. Research on dual beam welding characteristics of aluminum alloy [J]. Chinese J. Lasers, 2008, 35(11): 1783~ 1788.
李俐群 ,陈彦宾 ,陶汪.铝合金双光束焊接特性研究 [J].中国激光, 2008, 35(11):1783~ 1788.

【5】YAN HONGHUA, ZHANG KAIFENG, WU YUN. The analysis of the microstructure and mechanical properties of laser welding of Al-Mg alloy[J]. Transactions of the China Welding Institution, 2011,32(1):97-104.闫洪华,张凯锋,吴云. Al-Mg合金的激光焊接讨论组织及力学机能阐明 [J].焊接学报, 2011,32(1):97-104.

【6】YAN JUN, GAO MING, ZENG XIAOYAN. Welding process and joint properties of 2A12 aluminum alloy by laser-MIG hybrid welding[J]. The Chinese Journal of Nonferrous Metals, 2009, 19(12): 2112-2118.
严军,高超, 曾晓雁.激光·MIG复合焊接 2A12铝合金工艺和讨论机能 [J].中国有色金属学报, 2009, 19(12): 2112-2118.

【7】XU LIANGHONG, TIAN ZHILING, PENG YUN, et al. Microstructure and Mechanical Properties of High Strength Aluminum Alloy Laser Welds[J]. Chinese J. Lasers, 2008, 3(35):456-461.
许良红, 田志凌, 彭云, 等.高强铝合金的激光焊讨论组织及力学机能[J].中国激光, 2008, 3(35):456-461.

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