Simulation of heat transfer with phase transformation in dissimilar laser beamwelding of Aluminum and Magnesium sheets in limited conduction mode
Publish place: 3rd Iran International Aluminium Conference (IIAC2014)
Publish Year: 1393
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IIAC03_001
تاریخ نمایه سازی: 9 فروردین 1395
Abstract:
Laser beam welding is a novel technique for joining of materials in which the laser beam acts as an energysource for local melting. High quality, smooth, and sound welding are some of the advantages of this process. There aretwo major modes in LBW as limited conduction & deep penetration (key holing) . Nowadays, numerical simulationis widely used to optimize the LBW process variables, in which the main concern is thermal modeling with phasechange. In this research, a heat flow with phase change model was developed to study the welding of a dissimilar Al-Mg sheet. In the present model, a three dimensional transient energy equation with moving heat source was solvedconsidering temperature dependent thermo physical properties using finite element technique. Finally parametricstudies were performed to evaluate the effects of process variables on welding behavior of Al-Mg dissimilar system
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Authors
Sobhan Emad Mostofi
school of material science and metallurgy, Iran University of Science and Technology, Tehran, 1684613114, Iran
Mohammad Reza Aboutalebi
professor of school of material science and metallurgy, Iran University of Science and Technology, Tehran, 1684613114, Iran
Seyed Hossein Seyedein
Associated professor of school of material science and metallurgy, Iran University of Science and Technology, Tehran, 1684613114, Iran
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