Mechanical and Microstructural Investigations of the Laser Welding of Different Zinc-Coated Steels

被引:14
作者
Zdravecka, Eva [1 ]
Slota, Jan [2 ]
机构
[1] Tech Univ Kosice, Fac Mech Engn, Dept Mech Technol & Mat, Masiarska 74, Kosice 04001, Slovakia
[2] Tech Univ Kosice, Fac Mech Engn, Dept Comp Support Technol, Masiarska 74, Kosice 04001, Slovakia
关键词
tailor welded blanks; laser welding; Zn-coated low carbon microalloyed steels; microstructure; pores; TAILOR-WELDED BLANKS; DUAL-PHASE STEEL; TENSILE PROPERTIES; FORMABILITY; SHEETS; ALLOY;
D O I
10.3390/met9010091
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Tailor welded blanks (TWB) represent an anisotropic and non-homogenous material. The knowledge of the mechanical properties and microstructure of the fusion zone and heat-affected zone (HAZ) obtained with laser welding is essential to ensure the reliability of the process. In this paper, laser-welded hot-dip Zn-coated low carbon microalloyed steels with different thickness and mechanical properties were used. The mechanical properties of the laser-welded blanks were determined by tensile tests and formability by Erichsen cupping tests. In addition, the pore formation during the laser welding process was analyzed. The microstructural analysis confirmed the formation of the favorable structure of the weld metal and the heat-affected zone without the presence of martensite. The obtained results showed that it is possible to produce TWBs with suitable mechanical properties by laser welding.
引用
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页数:13
相关论文
共 33 条
[1]   Obtaining high formability of IF-galvanized steel tailor welded blanks by applying optimum CO2 laser welding parameters [J].
Abbasi, M. ;
Ketabchi, M. ;
Shakei, H. R. ;
Shafaat, M. A. .
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2011, 102 (10) :1295-1302
[2]  
[Anonymous], P 6 INT C FORM 2002
[3]  
[Anonymous], WELD MET FABR
[4]  
[Anonymous], APPL LASER
[5]  
[Anonymous], EFFECT WELD DESIGN F
[6]  
[Anonymous], 2008, J TECHNOLOGY PLASTIC
[7]  
[Anonymous], ANAL STRUCTURAL CHAN
[8]   Formability analysis of tailor-welded blanks of different thickness ratios [J].
Chan, LC ;
Cheng, CH ;
Chan, SM ;
Lee, TC ;
Chow, CL .
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2005, 127 (04) :743-751
[9]   Formability and weld zone analysis of tailor-welded blanks for various thickness ratios [J].
Chan, LC ;
Chan, SM ;
Cheng, CH ;
Lee, TC .
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 2005, 127 (02) :179-185
[10]   Tailor-welded blanks of different thickness ratios effects on forming limit diagrams [J].
Chan, SM ;
Chan, LC ;
Lee, TC .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 132 (1-3) :95-101