Numerical Analysis of Temperature Distribution in Friction Welding of Carbon Steel
Numerical Analysis of Temperature Distribution in Friction Welding of Carbon Steel
复制标题
碳钢摩擦焊接温度分布的数值分析
DOI：
10.7791/jhts.31.225
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Ogawa
中科院分区：
文献类型：
--
作者：
Y. Isshiki;H. Yamaguchi;G. Kawai;K. Ogawa
本研究的目的是估计在涉及镦粗过程的摩擦焊接过程中焊缝界面附近的温度分布。在简单的摩擦热输入模型的基础上，采用有限元法进行了非稳态热传导分析。结果表明，考虑温度和线速度对摩擦系数影响的摩擦热输入模型是合理的。该热输入模型能较好地模拟摩擦焊接过程中摩擦热输入和温度分布的变化。从而解释了镦粗过程中烧断长度与温度分布的关系，以及温度分布与热影响区宽度的关系。这种热输入模型使我们能够从摩擦压力、转速和母材的热性能来估计摩擦焊接中的温度分布，即使摩擦焊接机没有扭矩测量功能。
The purpose of this study is to estimate temperature distribution in the vicinity of weld interface during a friction welding process involving an upset process. On the base of a simple model of friction heat input, a non-steady heat conduction analysis was carried out by finite element method. As a result from a comparison of the estimated temperature distribution with the experimental data, it turned out that the friction heat input model that allowed for the effects of temperature and linear velocity on the friction coefficient was appropriate. This heat input model could simulate adequately the change in friction heat input and temperature distribution in a friction welding process. As a result, the relationship between burn-off length and temperature distribution in upset process has been explained and also the relationship between temperature distribution and width of heat-affected zone has been obtained. This heat input model allows us to estimate temperature distribution in friction welding, from friction pressure, rotation speed and the thermal property of base metal, even where a friction-welding machine does not have a function of torque measurement.