Investigation of spatter occurrence in remote laser spiral welding of zinc-coated steels

被引：26

作者：

Deng, Shengjie ^{[1
]}

Wang, Hui-Ping ^{[2
]}

Lu, Fenggui ^{[1
]}

Solomon, Joshua ^{[3
]}

Carlson, Blair E. ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Mat Laser Proc & Modificat, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[2] GM Global R&D, Warren, MI 48090 USA

[3] GM Mfg Engn, Warren, MI 48090 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2019年 / 140卷

基金：

中国国家自然科学基金;

关键词：

Laser spot welding; Zinc-coated steel; Spatter formation; Zinc vapor pressure; SHEETS; SIMULATIONS; DYNAMICS;

D O I：

10.1016/j.ijheatmasstransfer.2019.06.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper discusses the unique application of numerical modeling of remote laser spiral spot welding of zinc-coated steels to reduce spatter occurrence. A thermo-fluid process simulation model was developed to simulate the laser-material interaction, material melting, keyhole formation and molten pool dynamics occurring in remote laser spiral spot welding of zinc-coated steels. Based upon numerically calculated thermal profiles during welding, the instantaneous zinc vapor pressure between faying surfaces was estimated. It was found that high vapor pressure points correlated well with spattering events observed in high-speed videos taken of the molten pool during welding. Using the estimated zinc vapor pressure as an indicator of spatter occurrence, the welding schedule was redesigned to limit high zinc vapor pressure and rapid pressure increase for spatter prevention. The revised schedule was verified by physical testing and resulted in greatly reduced spatter. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：269 / 280

页数：12

共 30 条

[11]

Kacar I, 2016, LASER ENG, V33, P327

[12] Frequency-based analysis of weld pool dynamics and keyhole oscillations at laser beam welding of galvanized steel sheets [J].

Kaegeler, Christian ;

Schmidt, Michael .

LASER ASSISTED NET SHAPE ENGINEERING 6, PROCEEDINGS OF THE LANE 2010, PART 2, 2010, 5 :447-453

[13] Spatter in laser welding [J].

Kaplan, A. F. H. ;

Powell, J. .

JOURNAL OF LASER APPLICATIONS, 2011, 23 (03)

[14] Analysis of Welding Zinc Coated Steel Sheets in Zero Gap Configuration by 3D Simulations and High Speed Imaging [J].

Koch, Holger ;

Kaegeler, Christian ;

Otto, Andreas ;

Schmidt, Michael .

LASERS IN MANUFACTURING 2011: PROCEEDINGS OF THE SIXTH INTERNATIONAL WLT CONFERENCE ON LASERS IN MANUFACTURING, VOL 12, PT B, 2011, 12 :428-436

[15] Effect of welding laser process on macrostructures and the mechanical properties of coating steel DP600: Influence of vaporization zinc [J].

Kouadri-Henni, A. .

JOURNAL OF MANUFACTURING PROCESSES, 2017, 30 :83-96

[16] Weldability and keyhole behavior of Zn-coated steel in remote welding using disk laser with scanner head [J].

Lee, Su-Jin ;

Katayama, Seiji ;

Kawahito, Yousuke ;

Kinoshita, Keisuke ;

Kim, Jong-Do .

JOURNAL OF LASER APPLICATIONS, 2013, 25 (03)

[17] Novel technique for laser lap welding of zinc coated sheet steels [J].

Li, X. ;

Lawson, S. ;

Zhou, Y. ;

Goodwin, F. .

JOURNAL OF LASER APPLICATIONS, 2007, 19 (04) :259-264

[18] Numerical study of keyhole dynamics and keyhole-induced porosity formation in remote laser welding of Al alloys [J].

Lin, Runqi ;

Wang, Hui-ping ;

Lu, Fenggui ;

Solomon, Joshua ;

Carlson, Blair E. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2017, 108 :244-256

[19] Numerical support for laser welding of zinc-coated sheets process development [J].

Loredo, A ;

Martin, B ;

Andrzejewski, H ;

Grevey, D .

APPLIED SURFACE SCIENCE, 2002, 195 (1-4) :297-303

[20]

Ma J, 2013, THESIS

← 1 2 3 →