Laser welding of Al-Si coated hot stamping steel

被引：97

作者：

Kim, C. ^{[1
]}

Kang, M. J. ^{[1
]}

Park, Y. D. ^{[2
]}

机构：

[1] Korea Inst Ind Technol, 7-47 Songdodong Yeonsugu, Inchon 406840, South Korea

[2] Dong Eui Univ, Busan 614714, South Korea

来源：

11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11) | 2011年 / 10卷

关键词：

Al-Si coated steel; Boron-alloyed steel; Laser welding;

D O I：

10.1016/j.proeng.2011.04.368

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Advanced high strength steel (AHSS) is being increasingly used in automotive industries for weight reduction purposes. Hot stamping steel, which is a boron alloyed steel, has a strength greater than 1500 MPa after hot forming and successive quenching. Because the heating temperature is normally greater than 900 degrees C, a thin Al-Si based coating layer is applied to the steel surface to prevent oxidation. In this study, metallurgical characteristics of laser weldments were investigated in hot stamping steel plates with and without an Al-Si coating layer. The behavior of the Al-Si coating layer after the hot stamping process was analyzed, and the effects of Al-Si coating on laser weldability were investigated. Keyword : Al-Si coated steel; Boron-alloyed steel; Laser welding (C) 2011 Published by Elsevier Ltd. Selection and peer-review under responsibility of ICM11

引用

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