IMECH-IR  > 先进制造工艺力学重点实验室
Experimental and numerical study on laser keyhole welding of 42CrMo under air and argon atmosphere
Hu YW(胡耀武); He XL(何秀丽); Yu G(虞钢); Li SX(李少霞); Zheng CY(郑彩云); Ning WJ(宁伟健); Hu, YW; He, XL; Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
2017-06-01
Volume90Issue:9-12Pages:3555-3565
ISSN0268-3768
AbstractLaser keyhole welding of 42CrMo in air and argon atmospheres has been studied both experimentally and numerically. Significant macroscale difference is observed for welding carried out under argon and air shielding. Fusion zone of welding under argon shielding has a "a-1/2" shape while it has a "U" shape for welding in air. The surface of the weldment is smoother for welding in argon when compared with that in air. Oxygen effect is proposed to account for the experimental results. A three-dimensional heat transfer model with a predefined keyhole is developed to study the heat transport and fluid flow in laser welding process. The variation of weld pool geometry and temperature history is investigated for different oxygen concentrations. It is found that a small amount of oxygen could significantly modify the weld pool dimension while keeping the temperature history of materials and thus the microstructure in the fusion zone and heat-affected zone unchanged.
KeywordLaser Welding Keyhole Welding Shielding Gas Fluid Flow
DOI10.1007/s00170-016-9679-9
Indexed BySCI ; EI
Language英语
WOS IDWOS:000401505000096
WOS KeywordAUSTENITIC STAINLESS-STEEL ; MARANGONI CONVECTION ; HEAT-TRANSFER ; FLUID-FLOW ; PENETRATION ; METAL ; OXIDE ; MICROSTRUCTURE ; SIMULATION ; OXYGEN
WOS Research AreaAutomation & Control Systems ; Engineering
WOS SubjectAutomation & Control Systems ; Engineering, Manufacturing
Funding OrganizationNational Natural Science Foundation of China(11272317 ; 11272316)
DepartmentMAM激光智能制造工艺力学
Classification二类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60553
Collection先进制造工艺力学重点实验室
Corresponding AuthorHu, YW; He, XL; Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Hu YW,He XL,Yu G,et al. Experimental and numerical study on laser keyhole welding of 42CrMo under air and argon atmosphere[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2017,90(9-12):3555-3565.
APA 胡耀武.,何秀丽.,虞钢.,李少霞.,郑彩云.,...&Yu, G .(2017).Experimental and numerical study on laser keyhole welding of 42CrMo under air and argon atmosphere.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,90(9-12),3555-3565.
MLA 胡耀武,et al."Experimental and numerical study on laser keyhole welding of 42CrMo under air and argon atmosphere".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 90.9-12(2017):3555-3565.
Files in This Item: Download All
File Name/Size DocType Version Access License
JouAr-2017-043.pdf(2690KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[胡耀武]'s Articles
[何秀丽]'s Articles
[虞钢]'s Articles
Baidu academic
Similar articles in Baidu academic
[胡耀武]'s Articles
[何秀丽]'s Articles
[虞钢]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[胡耀武]'s Articles
[何秀丽]'s Articles
[虞钢]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: JouAr-2017-043.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.