GH4169高温合金惯性摩擦焊接温度场的数值模拟  

NUMERICAL SIMULATION OFTEMPERATURE FIELD FOR INERTIAFRICTION WELDING OF SUPERALLOY

作　　者：张立文[1] 齐少安[1] 刘承东[1] 于永泗[1] 祝文卉[2] 曲伸[2] 王敬和 

机构地区：[1]大连理工大学材料工程学院,大连116024 [2]沈阳黎明航空发动机集团公司

出　　处：《机械工程学报》2002年第z1期200-202,222,共4页Journal of Mechanical Engineering

摘　　要：根据惯性摩擦焊接过程的特点,结合摩擦学理论在研究了摩擦焊接摩擦面生热变化规律的基础上,建立了一个基于二维轴对称的有限元法传热计算模型。利用该模型可以模拟计算惯性摩擦焊接瞬态温度场的分布。并对同质材料GH4169-GH4169焊接进行了实例计算。用热电偶点焊在工件的表面的方法对GH4169-GH4169焊接过程中的温度变化进行了计算机实时多点测量。结果证实:计算结果与试验数据符合良好。从而该模型可为进一步研究惯性摩擦焊接应力场、应变场和缩短量以及优化焊接工艺参数提供有效的依据。A two-dimension numerical model of heat transfer for inertia welding has been set up, according to the characters of inertia welding and friction theory. The distribution of transient temperature fields of inertia friction welding can be predicted using this model. The temperature is calculated taking a workpiece made of GH4169 as sample. The temperature is measured by means of thermocouples. As a result, the calculated data is in good agreement with the experimental data. In conclusion, the model can provide a basis for technical parameters optimization during the process of inertia friction welding.

关 键 词：惯性摩擦焊接 温度场 数值模拟 有限元 

分 类 号：TG402[金属学及工艺—焊接]