Understanding of Laser and Hybrid Welding Phenomena

Seiji Katayama; Yousuke Kawahito; Masami Mizutani

doi:10.4028/www.scientific.net/MSF.580-582.535

Paper Titles

Laser Peening without Coating to Mitigate Stress Corrosion Cracking and Fatigue Failure of Welded Components
p.519

Optimization of Welding Conditions for Sealing of Lithium-Ion Battery by Pulsed Nd:YAG Laser
p.523

Advanced Laser Joining by Use of Process Optimizing System Technology
p.527

Laser Joining Applications Highest Efficiency Using Diode Lasers
p.531

Understanding of Laser and Hybrid Welding Phenomena
p.535

CW CO₂ Laser Welding of Al-Mg Alloys with Filler Wires
p.539

Laser Roll Welding of Dissimilar Metal Joint of Titanium to Low Carbon Steel
p.543

Improved High Temperature Tensile Properties of Ti-6Al-4V Alloy by Plasma Sprayed Coating
p.547

4^th Wave of Modernization by Photon/Electron Technology and Development of Advanced Laser Integrated Manufacturing System (ALIMS)
p.551

HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Understanding of Laser and Hybrid Welding...

Understanding of Laser and Hybrid Welding Phenomena

Abstract:

This paper describes laser and hybrid welding phenomena for the production of a sound and deep weld. The penetration of laser weld beads depended upon the power and power density at low and high welding speeds, respectively. It was reveled that the weld fusion zone geometry was formed by keyhole behavior and melt flows. It was also understood that the production of sound welds without porosity was attributed to no bubble formation in TIG-YAG hybrid welding of stainless steel and the disappearance of bubbles from the molten pool surface in YAG-MIG hybrid welding of aluminum alloy.