Preventing welding hot cracking by welding with an intensive trailing cooler

被引：10
|
作者：
Tian, XT
Shi, QY [1 ]
机构：
[1] 19 408 Tsing Hua Univ, Dept Engn Mech, Beijing 100084, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Adv Modern Welding Prod, Harbin 150006, Peoples R China
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2000年 / 97卷 / 1-3期
关键词：
numerical simulation; transient strain; temperature distribution; variable restraint fixture; intensive trailing cooler; hot cracking;
D O I：
10.1016/S0924-0136(99)00093-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Welding with an intensive trailing cooler has been investigated as a means to prevent welding hot cracking. Hot cracking initiated from the crater and extending backwards has been reproduced using a welding fixture with variable restraint. Welding with a trailing cooler can effectively prevent this kind of hot cracking and is feasible in welding production. The temperature field and the strain distribution have been analyzed using the non-linear finite element method. The results of experiment and numerical simulation expound the mechanism of the prevention of hot cracking. (C) 2000 Published by Elsevier Science S.A. All rights reserved.
引用
收藏
页码：30 / 34
页数：5
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