Laser-Arc Hybrid Welding

Seiji Katayama; Yasuaki Naito; Satoru Uchiumi; Masami Mizutani

doi:10.4028/www.scientific.net/SSP.127.295

Paper Titles

Bonding Strength of W-Cu Joint by PECS Method
p.271

Room Temperature Micro-Bonding of Fine Wires to Foils
p.277

Evaluation of Compound Layer Formed by Impact Welding Using Phase Transformation Technique
p.283

Pulsed Electric Current Bonding of Tungsten to Copper with Intermediate Layer
p.289

Laser-Arc Hybrid Welding
p.295

Theoretical Approaches to Erosion and Wetting Phenomena during Laser Brazing Process
p.301

Prediction of Laser Fusion Zone Profile of Lotus-Type Porous Metals by 3D Heat Transfer Analysis
p.307

Study on Improvement of Oxide Layer and Properties of Plasma Sprayed Alumina in Thermal Barrier Coatings
p.313

Spraying Using Electromagnetically Accelerated Plasma
p.319

HomeSolid State PhenomenaSolid State Phenomena Vol. 127Laser-Arc Hybrid Welding

Laser-Arc Hybrid Welding

Abstract:

Hybrid welding of stainless steels or aluminum alloys was performed using the heat sources of YAG laser and TIG, or YAG laser and MIG, respectively. The effects of welding conditions and melt flows on penetration depth, weld bead geometry and bubble/porosity formation were investigated with X-ray transmission real-time observation method. A great effect of melt flows on penetration depth and weld geometry was consequently confirmed. Concerning porosity suppression in YAG-TIG hybrid welding of stainless steel, no bubble generation was attributed to no porosity formation. On the other hand, it was revealed that the disappearance of bubbles from the concave molten pool surface played an important role of no porosity in YAG laser-MIG hybrid welding of aluminum alloys.