Paper Title:
Aesthetic Diode Laser Welding of Stainless Steel
  Abstract

In the present study the use of diode laser for stainless steel aesthetic welding is considered. In fact the surface smoothness of the weld bead, attributed to the mode stability of the laser system, suggests its application for aesthetic weld joint. The aims of this work were to: define a process map, based on an aesthetic criterion; mechanically characterize the weld joints (by Vickers micro-hardness and tensile test); analyse the surface of the specimens in terms of roughness. Moreover, gas tungsten-arc (TIG) weld joints were carried out and analogously tested to make a comparison with the diode laser results. Good aesthetic butt joints were obtained with diode laser welding. The same results were found working with constant power speed ratio (i.e. constant fluence). Comparison between TIG and Laser Beam Welding (LBW), showed no significant difference in roughness, while ultimate tensile load was higher for TIG welding. The differences in joint strength depend on the different cross-sectional area and on the extension and microstructure of the base metal, heat-affected zone and melted zone. However, diode laser technology allows to obtain smaller bead size.

  Info
Periodical
Main Theme
Edited by
F. Micari, M. Geiger, J. Duflou, B. Shirvani, R. Clarke, R. Di Lorenzo and L. Fratini
Pages
707-713
DOI
10.4028/www.scientific.net/KEM.344.707
Citation
F. Quadrini, L. Santo, F. Trovalusci, "Aesthetic Diode Laser Welding of Stainless Steel", Key Engineering Materials, Vol. 344, pp. 707-713, 2007
Online since
July 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: Hideki Hamatani, Yasunobu Miyazaki, Tadayuki Otani, Shigeru Ohkita
Abstract:Ultra-fine grained steel (UFGS) with an average grain size of less than 1μm has been developed and is expected to demonstrate superior...
4063
Authors: Jun Liu, Jun Hui Dong, K. Shinozaki
Abstract:The microstructure, mechanical properties, hardness, rules and mechanism of various parameters on formation of weld bead of Mg alloy ACM522...
911
Authors: Wen Quan Wang, Shi Ming Huang, Qun You, Chung Yun Kang
Abstract:Characteristics of CO2 laser welded 1000 MPa grade Transformation Induced Plasticity steel plate were investigated under different...
3764
Authors: Marco Brandizzi, Annunziata Anna Satriano, Luigi Tricarico
Abstract:CO2 laser - Metal Inert Gas (MIG) hybrid welding process was investigated in the butt welding of Ti-6Al-4V titanium alloy sheets of 3.0mm in...
1270
Authors: Hong Jian Xiu, Jun Liu, Jun Hui Dong, Ping Xu
Mechanical Behavior & Fracture
Abstract:The microstructure, the regular and mechanism of various parameters on formation of weld bead of Mg alloy AMCa403 using a laser welding were...
949