Experiments on formation mechanism of root humping in high-power laser autogenous welding of thick plates with stainless steels

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成果类型：

期刊论文

作者：

Zhang, Mingjun*;Zhang, Yingzhe;Mao, Cong;Hu, Yongle;Chen, Genyu;...

通讯作者：

Zhang, Mingjun

作者机构：

[Hu, Yongle; Zhang, Mingjun; Mao, Cong] Changsha Univ Sci & Technol, Educ Dept Hunan Prov, Key Lab Lightweight & Reliabil Technol Engn Vehic, Changsha 410114, Hunan, Peoples R China.

[Zhang, Yingzhe] Guizhou Inst Technol, Coll Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China.

[Zhang, Mingjun; Zhang, Yingzhe; Chen, Genyu] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China.

[Bi, Zhuming] Purdue Univ Ft Wayne, Dept Civil & Mech Engn, Ft Wayne, IN 46805 USA.

通讯机构：

[Zhang, Mingjun] C

Changsha Univ Sci & Technol, Educ Dept Hunan Prov, Key Lab Lightweight & Reliabil Technol Engn Vehic, Changsha 410114, Hunan, Peoples R China.

语种：

英文

关键词：

Fiber lasers;High power lasers;High speed cameras;Laser beam welding;Plates (structural components);Steel fibers;Autogenous laser welding;Deep penetration laser welding;Focal positions;High speed imaging;High speed imaging systems;Root hump;Stainless steel plate;Thick plate;Stainless steel

期刊：

OPTICS AND LASER TECHNOLOGY

ISSN：

0030-3992

年：

2019

卷：

111

页码：

11-19

DOI：

10.1016/j.optlastec.2018.09.029

基金类别：

The authors are grateful to the financial support from the National Natural Science Foundation of China (No. 51605045 , 51641502 ), the Natural Science Foundation of Hunan Province of China (No. 2018JJ2437 , 2015JJ3003 ). The authors are grateful to the financial support from the National Natural Science Foundation of China (No. 51605045, 51641502), the Natural Science Foundation of Hunan Province of China (No. 2018JJ2437, 2015JJ3003).

机构署名：

本校为第一且通讯机构

院系归属：

汽车与机械工程学院

摘要：

Deep penetration laser welding is an efficient and effective way to produce the heavy section structure. Deep penetration can be achieved by high-power autogenous laser welding; however, it poses a significant challenge in obtaining good quality of welds, which are free of imperfects such as root hump, under-fill, and collapse. It is partially attributed to a lacking of understanding on the formation of imperfects. In this paper, we looked into the formation mechanism of root humping experimentally. The laser autogenous welding were implemented...

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Experiments on formation mechanism of root humping in high-power laser autogenous welding of thick plates with stainless steels

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