Effects of the MIG weld-brazing parameter on the lap-joint performance of aluminum alloy to galvanized steel sheet

2018 IEEE International Conference on Advanced Manufacturing (ICAM) Pub Date : 2018-11-01 DOI:10.1109/AMCON.2018.8615082

H. Lin, Chien-Hang Lee, H. Chen, Fu-Jyun Nan

{"title":"Effects of the MIG weld-brazing parameter on the lap-joint performance of aluminum alloy to galvanized steel sheet","authors":"H. Lin, Chien-Hang Lee, H. Chen, Fu-Jyun Nan","doi":"10.1109/AMCON.2018.8615082","DOIUrl":null,"url":null,"abstract":"The weld-brazing lap-joint of automotive galvanized steel to 6061 aluminum alloy sheet was achieved employing a metal inert gas (MIG) welding process. In this novel weld-brazing process, the welding feed, welding voltage and travel speed of welding torch were selected to investigate the lap-joint performance of specimens. The experimental results demonstrated that the specimens produced by welding feed at 115 mm/sec, welding voltage at 22V and travel speed of MIG welding torch at 600 mm/min were provided with better welding performance such as weld bead geometry, microstructure and tensile strength. The average tensile strength of lap-joint welds of automotive galvanized steel to 6061 aluminum alloy sheet that produced with above MIG welding parameters is 130.53MPa. The amount of porosity and grain size of welds that produced with optimal parameters is smaller than others. In addition, it can be found that the intermetallic compounds (IMCs) layer between the galvanized steel sheet and weld bead using the scanning electron microscopy (SEM). The thickness of IMCs layer was the thinnest and its thickness from 3.51μm to 3.90μm.","PeriodicalId":438307,"journal":{"name":"2018 IEEE International Conference on Advanced Manufacturing (ICAM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE International Conference on Advanced Manufacturing (ICAM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AMCON.2018.8615082","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

The weld-brazing lap-joint of automotive galvanized steel to 6061 aluminum alloy sheet was achieved employing a metal inert gas (MIG) welding process. In this novel weld-brazing process, the welding feed, welding voltage and travel speed of welding torch were selected to investigate the lap-joint performance of specimens. The experimental results demonstrated that the specimens produced by welding feed at 115 mm/sec, welding voltage at 22V and travel speed of MIG welding torch at 600 mm/min were provided with better welding performance such as weld bead geometry, microstructure and tensile strength. The average tensile strength of lap-joint welds of automotive galvanized steel to 6061 aluminum alloy sheet that produced with above MIG welding parameters is 130.53MPa. The amount of porosity and grain size of welds that produced with optimal parameters is smaller than others. In addition, it can be found that the intermetallic compounds (IMCs) layer between the galvanized steel sheet and weld bead using the scanning electron microscopy (SEM). The thickness of IMCs layer was the thinnest and its thickness from 3.51μm to 3.90μm.

查看原文本刊更多论文

MIG钎焊参数对铝合金与镀锌钢板搭接性能的影响

采用金属惰性气体(MIG)焊接工艺，实现了汽车镀锌钢板与6061铝合金板的钎焊搭接。在这种新型钎焊工艺中，选取了焊接进料、焊接电压和焊枪运动速度来研究试样的搭接性能。实验结果表明，在送料速度为115 mm/sec、焊接电压为22V、MIG焊枪移动速度为600 mm/min的条件下，试样在焊缝几何形状、显微组织和抗拉强度等方面具有较好的焊接性能。采用上述MIG焊接参数生产的汽车镀锌钢与6061铝合金板搭接焊缝的平均抗拉强度为130.53MPa。最优参数下的焊缝气孔率和晶粒尺寸均小于其他参数下的焊缝。此外，利用扫描电镜(SEM)可以发现镀锌钢板与焊缝之间存在金属间化合物(IMCs)层。IMCs层厚度最薄，为3.51 ~ 3.90μm。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2018 IEEE International Conference on Advanced Manufacturing (ICAM)

自引率

0.00%

发文量