Modeling of laser keyhole welding: Part II. simulation of keyhole evolution, velocity, temperature profile, and experimental verification

被引：0
|
作者：
Hyungson Ki
Jyoti Mazumder
Pravansu S. Mohanty
机构：
[1] University of Michigan,the Center for Laser Aided Intelligent Manufacturing, Mechanical Engineering Department
[2] University of Michigan-Dearborn,the Mechanical Engineering Department
来源：
Metallurgical and Materials Transactions A | 2002年 / 33卷
关键词：
Welding; Material Transaction; Laser Power; Weld Pool; Scanning Speed;
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学科分类号：
摘要：
This article presents the simulation results of a three-dimensional mathematical model using the level set method for laser-keyhole welding. The details of the model are presented in Part I.[4] The effects of keyhole formation on the liquid melt pool and, in turn, on the weld bead are investigated in detail. The influence of process parameters, such as laser power and scanning speed is analyzed. This simulation shows very interesting features in the weld pool, such as intrinsic instability of keyholes, role of recoil pressure, and effect of beam scanning.
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页码：1831 / 1842
页数：11
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