Numerical study of Heat Modes of laser welding of dissimilar metals with an intermediate insert

被引：26
作者：
Isaev, V. I. [1 ]
Cherepanov, A. N. [1 ]
Shapeev, V. P. [1 ,2 ]
机构：
[1] RAS, Khristianovichs Inst Theoret & Appl Mech, SB, Inst Skaja Str 4-1, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Pirogova St 2, Novosibirsk 630090, Russia
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 99卷
基金：
俄罗斯基础研究基金会;
关键词：
Laser welding; Heat transfer; Mathematical modeling; Dissimilar metals; Intermetallic phase; Intermediate insert; SIMULATION; KEYHOLE;
D O I：
10.1016/j.ijheatmasstransfer.2016.04.019
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A 3D model of heat transfer in inhomogeneous materials taking into account phase transitions for analysis of laser welding of dissimilar metals using intermediate insert is developed. Based on the proposed model, an algorithm is constructed and numerical studies are carried out of the distribution of temperature fields in the weld joint of titanium and stainless steel with an intermediate copper insert. The processes of melting, evaporation, and solidification of the materials depending on the beam power, its speed, and position of the focal spot in the system are studied. The welding modes reducing interaction of elements of the materials welded and, thus, preventing formation of brittle intermetallic phases in the weld joint are found. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：711 / 720
页数：10
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