Laser tailor-welded blanks for hot-press-forming steel with arc pretreatment

被引:0
作者
M. Kang
C. Kim
S. M. Bae
机构
[1] KITECH,Advanced Welding and Joining R&BD Group
[2] Hanbat National University,Department of Industrial & Management Engineering
来源
International Journal of Automotive Technology | 2015年 / 16卷
关键词
Boron alloy steel; Tailor-welded blank; Laser welding; Al-Si coating; Arc pretreatment;
D O I
暂无
中图分类号
学科分类号
摘要
Tailor-welded blanks (TWBs) are made of sheets with various strengths or thicknesses that ensure increased material strength without significantly increasing the weight. In this study, Al-Si-coated hot-press-forming steel sheets were subjected to laser butt welding for making TWBs. After laser welding, the welded blanks were heated and subsequently quenched to simulate a thermal cycle in the hot-press-forming process, and the properties of the welded joints were examined. Arc pretreatment was applied before laser welding, and its influence on the mechanical and metallurgical properties of the welds was analysed.
引用
收藏
页码:279 / 283
页数:4
相关论文
共 33 条
[1]  
Fan D. W.(2009)A review of the physical metallurgy related to the hot press forming of advanced high strength steel Steel Research Int. 80 241-248
[2]  
Kim H. S.(2009)Hochfester und leicht umformbarer Stahl für den Automobilbau: Laserstrahlschweißen von 22MnB5 mit Aluminium-Silizium-Beschichtung Laser Technik J. 6 33-37
[3]  
De Cooman B. C.(2012)Effect of hot-stamping heat treatment on microstructure and hardness in TWB laser joints of Al-Si-coated boron steel and Zn-coated DP steel J. Korean Institute of Metals and Materials 50 224-232
[4]  
Ganger S.(2012)Effect of hot-stamping heat treatment on the microstructure of Alsegregated zone in TWB laser joints of Al-Si-coated boron steel and Zn-coated DP steel J. Korean Institute of Metals and Materials 50 455-462
[5]  
Albert F.(2010)A review on hot stamping J. Materials Processing Technology 210 2103-2118
[6]  
Schmidt M.(2010)A study on the CO2 laser welding characteristics of high strength steel up to 1500 MPa for automotive application J. Achievements in Materials and Manufacturing Engineering 39 79-86
[7]  
Jung B. H.(2011)Laser welding of Al-Si coated hot stamping steel Engineering Procedia 10 2226-2231
[8]  
Kong J. P.(2012)Mechanical property degradation of laser welded boron steel sheet in hot press forming Advanced Science Letters 13 447-450
[9]  
Kang C. Y.(2011)Analysis of laser and resistance spot weldments on press-hardened steel Materials Science Forum. 264–265 361-366
[10]  
Jung B. H.(2012)Weld strength of laser-welded hot-press-forming steel J. Laser Applications 24 1-288