摘要
基于电流生热理论,使用ABAQUS软件对TC4钛合金线性摩擦焊接头的直接通电热处理过程进行了模拟,得出了不同电流下温度场的分布云图以及特征点的温度变化曲线。为验证模拟的准确性,在电阻点焊机电源下对线性摩擦焊接头进行了通电热处理,并运用红外设备对热处理过程中接头表面温度场进行了测量。通过模拟与试验对比,发现二者吻合性较好,说明该模型可正确预测通电热处理温度场,为合理选取通电热处理参数提供理论依据。
The heat treatment of TC4 alloy linear friction welded joint by direct-electrified heating was simulated using the ABAQUS software.The temperature fields with different currents and the temperature variation at the characteristic points were obtained and analyzed.In order to verify the exactness of the calculation,electric heat treatment was conducted under the power supply of spot welding machine.During heat treatment,the variation of surface temperature was measured via infrared thermodetector.Comparing the calculations with experiments,it is found that the calculation results are in good agreement with the experiments,which means that the model can accurately predict the temperature field during electric heat treatment and provide basis for choosing reasonable parameters of electric heat treatment.
出处
《金属热处理》
CAS
CSCD
北大核心
2012年第4期109-112,共4页
Heat Treatment of Metals
基金
教育部博士点基金新教师基金
教育部新世纪优秀人才计划(NCEG-08-0463)
国家自然科学基金(51005180)
关键词
线性摩擦焊
通电热处理
数值模拟
温度场
linear friction welding
direct-electrified heating
numerical simulation
temperature field
