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Comparative study of hybrid laser-MIG leading configuration on porosity in aluminum alloy bead-on-plate welding
Miao HB(苗海滨); Yu G(虞钢); He XL(何秀丽); Li SX(李少霞); Chen XY(陈旭阳); Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China.; Yu, G (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
2017-07-01
Volume91Issue:5-8Pages:2681-2688
ISSN0268-3768
AbstractLaser-metal inert gas (MIG) welding is a promising welding technology, which presents many attractive properties. However, porosity still remains a serious problem in laser-MIG welding of aluminum. In this experimental study, the effect of leading configuration on porosity formation and distribution in laser-MIG bead-on-plate welding of A7N01 alloy was investigated. Experiments on arc current, welding speed, and arc configuration were performed comparatively for two leading configurations, respectively. The welds were analyzed with X-ray photographs and cross-section observations. Pores in laser-MIG-welded samples were mainly keyhole-induced. The concept of porosity area fraction was used to evaluate the severity of pore defect. The maximum porosity area fraction presented at different arc currents in the two leading configurations (in laser leading welding, it is 150 A, while in arc leading welding, it is 110 A). With welding speed increasing, porosity area fraction decreased. Bubble escape condition was deduced and used to discuss the probable mechanism of the effect of leading configuration on pore formation. The results showed that leading configuration was considerable in porosity minimization and prevention.
KeywordLaser-mig Hybrid Welding A7n01 Aluminum Alloy Leading Configuration Porosity
DOI10.1007/s00170-016-9917-1
Indexed BySCI ; EI
Language英语
WOS IDWOS:000404132100098
WOS KeywordFORMATION MECHANISMS ; FIBER LASER ; ARC ; KEYHOLE ; MICROSTRUCTURE ; PARAMETERS ; REDUCTION ; DYNAMICS ; AA5083 ; FLOW
WOS Research AreaAutomation & Control Systems ; Engineering
WOS SubjectAutomation & Control Systems ; Engineering, Manufacturing
Funding OrganizationNational Natural Science Foundation of China(11272316||11272317||11502269)
DepartmentMAM激光智能制造工艺力学
Classification二类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60637
Collection先进制造工艺力学重点实验室
Corresponding AuthorYu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China.; Yu, G (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Miao HB,Yu G,He XL,et al. Comparative study of hybrid laser-MIG leading configuration on porosity in aluminum alloy bead-on-plate welding[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2017,91(5-8):2681-2688.
APA 苗海滨.,虞钢.,何秀丽.,李少霞.,陈旭阳.,...&Yu, G .(2017).Comparative study of hybrid laser-MIG leading configuration on porosity in aluminum alloy bead-on-plate welding.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,91(5-8),2681-2688.
MLA 苗海滨,et al."Comparative study of hybrid laser-MIG leading configuration on porosity in aluminum alloy bead-on-plate welding".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 91.5-8(2017):2681-2688.
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