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首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >A METHOD TO PREDICT TEMPERATURE FIELDS DURING FRICTIONAL WELDING BY INTRODUCING THE HEAT INPUT COEFFICIENT AND THE HEAT INPUT SURFACE TRANSFER
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A METHOD TO PREDICT TEMPERATURE FIELDS DURING FRICTIONAL WELDING BY INTRODUCING THE HEAT INPUT COEFFICIENT AND THE HEAT INPUT SURFACE TRANSFER

机译：通过引入热输入系数和热输入表面传递来预测摩擦焊接过程中的温度场的方法

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摘要

A method to predict the time evolution of temperature fields during the frictional welding of stainless steel bars is proposed. The features of the proposed method are the introduction of the heat input coefficient and the transfer of the heat generating plane proportional to the shortening of the work. The heat input coefficient is the multiplication of the heat conversion efficiency of mechanical work and the dynamic friction coefficient. The values of heat input coefficient are decided experimentally. The frictional welding experiments were conducted for the austenitic stainless steel bars with welding conditions. The measured temperature at several points on the surface of the stator agrees with the calculated temperature. Despite the welding conditions, the heat input coefficient shows little difference. Therefore, using the proposed method, by deducing the heat input coefficient from several experiments, the time evolution of temperature fields for work with other diameters might be able to be predicted precisely.
机译：提出了一种预测不锈钢棒摩擦焊接过程中温度场时间演化的方法。所提出的方法的特征是引入热输入系数和与缩短工作成正比的生热平面的传递。热输入系数是机械功的热转换效率与动摩擦系数的乘积。热输入系数的值通过实验确定。在焊接条件下对奥氏体不锈钢棒进行了摩擦焊接实验。定子表面上几个点处测得的温度与计算出的温度一致。尽管焊接条件不同，但热输入系数几乎没有差别。因此，使用所提出的方法，通过从几个实验中推导出热输入系数，可以精确地预测用于其他直径的工件的温度场的时间演变。

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