Modeling of the Preheating Effect on Keyhole Laser Welding Efficiency

K.S. Khashan --- O.A. Hamadi

Iraqi Journal of Applied Physics Letters الرسائل العراقية في الفيزياء التطبيقية
ISSN: 1999656X Year: 2008 Volume: 1 Issue: 1 Pages: 10-15
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة


In this work, results of a mathematical analysis of the role of workpiece preheating in laser keyhole welding were presented. This analysis considered the steady-state welding as well as certain range of boundary conditions over which preheating effect would be indicated. This work is an attempt to interpret the role of preheating to increase welding depth and perform keyhole welding with high quality using physical and thermal properties of steel alloys.


Preheating effect --- Keyhole welding --- Laser welding --- Low-carbon steel