Paper Title:
Computer Aided Development of the Crack-Free Laser Welding Processes
  Abstract

The present paper describes the new methodology used for the development of the crackfree welding processes. The presented approach is based on the accurate experimental observations on binary Al-Si alloys, which clearly demonstrate that the crack initiation is a result of the accumulation of macroscopic tensile strain in a microscopic intergranular liquid film of segregates at the final stage of the weld metal solidification. The numerical model takes into account the effects of strain accumulation as well as the influence of thermo-dynamical and thermo-mechanical properties of the welded material. The new approach provides a clear phenomenological interrelation between the cracking susceptibility, parameters of the welding process and properties of the base and filler material. It is successfully applied for development of technological means for elimination of the solidification cracking during welding of aluminium alloys AA6056, such as a multi-beam welding.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
1984-1994
DOI
10.4028/www.scientific.net/KEM.353-358.1984
Citation
V. Ploshikhin, A. Prikhodovski, A. Ilin, C. Heimerdinger, F. Palm, "Computer Aided Development of the Crack-Free Laser Welding Processes", Key Engineering Materials, Vols. 353-358, pp. 1984-1994, 2007
Online since
September 2007
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: M. Yamamoto, A. Gerlich, T.H. North, K. Shinozaki
Abstract:Liquid Penetration Induced (LPI) cracking during AZ91, AZ31 and AM60 friction stir spot welding is investigated. The temperature cycles,...
409
Authors: Jian Li Song, Yong Tang Li, Qi Lin Deng, Zhong Yang Cheng, Bryan Chin
Abstract:Laser cladding rapid manufacturing technology is a kind of new developed advanced manufacturing technology integrating the advantages of...
413
Authors: Jian Guo Yang, Lu Yong Huang, Hai Bo Pan, Xue Song Liu, Hong Yuan Fang
Chapter 1: Materials Properties
Abstract:As a kind of the high strength low alloy steel (HSLA), 30CrMoSi has been used widely in some industrial fields. However, just like some HSLA,...
1251
Authors: Yi Nan Li, Z.L. Peng, J.C. Yan
II. Material Forming Science and Technology
Abstract:The new welding material – ERCuTi alloys filler metals were developed specially for gas tungsten arc welding (GTAW) of copper. The hot...
409
Authors: Wei Chih Chung, Lv Wen Tsay, Chun Chen
Abstract:Nickel-based filler metals are widely used in the nuclear power industry for overlay welding of austenitic stainless steel components....
529