AXISYMMETRICAL NUGGET GROWTH DURING RESISTANCE SPOT-WELDING

被引：43
作者：
WEI, PS
HO, CY
机构：
[1] Institute of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung
来源：
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 02期
关键词：
Materials processing and manufacturing processes; Phase-change phenomena; Transient and unsteady heat transfer;
D O I：
10.1115/1.2910377
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Three-dimensional weld nugget growths for different welding currents, electrode tip shapes, and thickness ratios of workpieces are determined. By providing an effective model to estimate the heat generation at the faying surface between workpieces and taking into account the phase change due to melting, results show that the calculated weld nugget growth, nugget thickness, and shape of the nugget agree well with experimental data. Heat generation at the faying surface in the early stage of welding and joule heating at long weld times dominate the nugget growth. Consideration of radial heat loss is necessary at longer weld times and higher welding currents. © 1990 by ASME.
引用
收藏
页码：309 / 316
页数：8
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