CO2 and diode laser welding of AZ31 magnesium alloy

Jinhong Zhu; Lin Li; Zhu Liu

doi:10.1016/j.apsusc.2005.01.162

CO2 and diode laser welding of AZ31 magnesium alloy

Jinhong Zhu, Lin Li, Zhu Liu

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Magnesium alloys are being increasingly used in automotive and aerospace structures. Laser welding is an important joining method in such applications. There are several kinds of industrial lasers available at present, including the conventional CO2 and Nd:YAG lasers as well as recently available high power diode lasers. A 1.5 kW diode laser and a 2 kW CO2 laser are used in the present study for the welding of AZ31 alloys. It is found that different welding modes exist, i.e., keyhole welding with the CO2 laser and conduction welding with both the CO2 and the diode lasers. This paper characterizes welds in both welding modes. The effect of beam spot size on the weld quality is analyzed. The laser processing parameters are optimized to obtain welds with minimum defects. © 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	300-306
Number of pages	6
Journal	Applied Surface Science
Volume	247
Issue number	1-4
DOIs	https://doi.org/10.1016/j.apsusc.2005.01.162
Publication status	Published - 15 Jul 2005

Keywords

AZ31 magnesium alloy
Laser welding
Welding modes

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10.1016/j.apsusc.2005.01.162

LPRC: Laser Processing Research Centre Impact
Allegre, O. (PI), Crosby, D. (PI), Domingos, M. (PI), Francis, J. (PI), Gillen, D. (PI), Guo, W. (PI), Li, L. (PI), Mativenga, P. (PI), Rogers, B. D. (PI), Whitehead, D. (PI), Wilson, D. (PI), Zhong, S. (PI), Mirhosseini, N. (Researcher), Ouyang, J. (Researcher), Huang, Y. (Researcher), Wei, C. (Researcher), Cheng, D. (PGR student), Suryo Pratomo, E. (PGR student), Zhang, Z. (PGR student), Li, Z. (PGR student), Mo, H. (PGR student), Zhu, M. (PGR student), Li, Q. (PGR student), Liu, W. (PGR student), Wang, L. (PGR student), Guo, H. (PGR student), Heinemann, R. (PI) & Liu, Z. (PI)
1/04/00 → …
Project: Research

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title = "CO2 and diode laser welding of AZ31 magnesium alloy",

abstract = "Magnesium alloys are being increasingly used in automotive and aerospace structures. Laser welding is an important joining method in such applications. There are several kinds of industrial lasers available at present, including the conventional CO2 and Nd:YAG lasers as well as recently available high power diode lasers. A 1.5 kW diode laser and a 2 kW CO2 laser are used in the present study for the welding of AZ31 alloys. It is found that different welding modes exist, i.e., keyhole welding with the CO2 laser and conduction welding with both the CO2 and the diode lasers. This paper characterizes welds in both welding modes. The effect of beam spot size on the weld quality is analyzed. The laser processing parameters are optimized to obtain welds with minimum defects. {\textcopyright} 2005 Elsevier B.V. All rights reserved.",

keywords = "AZ31 magnesium alloy, Laser welding, Welding modes",

author = "Jinhong Zhu and Lin Li and Zhu Liu",

year = "2005",

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day = "15",

doi = "10.1016/j.apsusc.2005.01.162",

language = "English",

volume = "247",

pages = "300--306",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier BV",

number = "1-4",

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TY - JOUR

T1 - CO2 and diode laser welding of AZ31 magnesium alloy

AU - Zhu, Jinhong

AU - Li, Lin

AU - Liu, Zhu

PY - 2005/7/15

Y1 - 2005/7/15

N2 - Magnesium alloys are being increasingly used in automotive and aerospace structures. Laser welding is an important joining method in such applications. There are several kinds of industrial lasers available at present, including the conventional CO2 and Nd:YAG lasers as well as recently available high power diode lasers. A 1.5 kW diode laser and a 2 kW CO2 laser are used in the present study for the welding of AZ31 alloys. It is found that different welding modes exist, i.e., keyhole welding with the CO2 laser and conduction welding with both the CO2 and the diode lasers. This paper characterizes welds in both welding modes. The effect of beam spot size on the weld quality is analyzed. The laser processing parameters are optimized to obtain welds with minimum defects. © 2005 Elsevier B.V. All rights reserved.

AB - Magnesium alloys are being increasingly used in automotive and aerospace structures. Laser welding is an important joining method in such applications. There are several kinds of industrial lasers available at present, including the conventional CO2 and Nd:YAG lasers as well as recently available high power diode lasers. A 1.5 kW diode laser and a 2 kW CO2 laser are used in the present study for the welding of AZ31 alloys. It is found that different welding modes exist, i.e., keyhole welding with the CO2 laser and conduction welding with both the CO2 and the diode lasers. This paper characterizes welds in both welding modes. The effect of beam spot size on the weld quality is analyzed. The laser processing parameters are optimized to obtain welds with minimum defects. © 2005 Elsevier B.V. All rights reserved.

KW - AZ31 magnesium alloy

KW - Laser welding

KW - Welding modes

U2 - 10.1016/j.apsusc.2005.01.162

DO - 10.1016/j.apsusc.2005.01.162

M3 - Article

SN - 0169-4332

VL - 247

SP - 300

EP - 306

JO - Applied Surface Science

JF - Applied Surface Science

IS - 1-4

ER -

CO2 and diode laser welding of AZ31 magnesium alloy

Abstract

Keywords

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LPRC: Laser Processing Research Centre Impact

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