Numerical Simulation to Predict Temperature Distribution and Weld Profile in Laser Beam Welding of Carbon Steel St37 and Mechanical Properties

被引：1
|
作者：
Kumar, Pramod [1 ]
Sinha, Amar Nath [1 ]
机构：
[1] Natl Inst Technol Patna, Dept Mech Engn, Patna 800005, Bihar, India
来源：
ADVANCES IN ADDITIVE MANUFACTURING AND JOINING, AIMTDR 2018 | 2020年
关键词：
Laser beam welding; Spot diameter; Temperature distribution; Butt joint; ANSYS;
D O I：
10.1007/978-981-32-9433-2_64
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present research work, a numerical simulation of temperature distribution for laser beam welding of St37 carbon steel has been investigated. The geometry created for this model is similar to the butt joint of 1.4-mm-thick material, and cooling effect caused by the free convection and radiation in ambient air is taken into account. The effect of average beam power and laser spot diameter on the transient temperature distribution and peak temperature has been investigated. It has been found the peak temperature increases with increase in average beam power and decreases with increase in spot diameter at constant welding speed. The mechanical properties such as microhardness and ultimate tensile strength of the welded joint have also been studied.
引用
收藏
页码：719 / 726
页数：8
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