Paper Title:
Laser Beam Welding of Automobile Materials for Lightweight Car Body
  Abstract

This paper presents laser beam welding (LBW) of an age-hardened aluminum alloy and a bake-hardening (BH) steel, which are promising materials for lightweight car body, compared with conventional arc welding. The LBW of the aluminum alloy had a significantly narrower fusion zone and heat affected zone (HAZ) than the arc weld and the hardness of the softened zones was almost completely recovered to the base metal hardness after a post weld aging treatment. This advantage of LBW is due to a low overall heat input resulting from its high energy density. This is also beneficial for welding of the BH steel. In the LBW of the pre-strained BH steel, both the fusion zone and HAZ were bake-hardened after a heat-treatment and the fracture occurred in the base metal in the tensile test. In contrast to this, the arc weld had a large softened zone in the HAZ and fractures in this region.

  Info
Periodical
Edited by
Masaaki Naka and Toshimi Yamane
Pages
487-492
DOI
10.4028/www.scientific.net/MSF.502.487
Citation
A. Hirose, K. F. Kobayashi, "Laser Beam Welding of Automobile Materials for Lightweight Car Body ", Materials Science Forum, Vol. 502, pp. 487-492, 2005
Online since
December 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wee Do Yoo, Jong Hoon Lee, Kuk Tae Youn, Young Mok Rhyim
Abstract:The microstructures and mechanical properties of 17-4 PH stainless steel at each steps of heat treatment, such as homogenizing, solid...
15
Authors: Prachya Peasura, Bovornchok Poopat
Abstract:The Inconel X-750 indicates good hot corrosion resistance, high stability and strength at high temperatures and for this reason the alloy is...
108
Authors: N.I.S. Hussein, Mohamad Nizam Ayof, Tan Huay Kean
Chapter 1: Materials and Technologies of Processing
Abstract:Dissimilar metal welding is widely applied to meet the rquirement of transition in mechanical properties and/or difference in working...
146
Authors: Nikolai Kashaev, Dmitry Pugachev, Stefan Riekehr, Volker Ventzke
Chapter 2: Contributed Papers
Abstract:The present work investigates the effects of laser beam power, focus position and advance speed on the geometry, microstructure and...
903