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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Modelling and simulation of the inertia friction welding of shafts
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Modelling and simulation of the inertia friction welding of shafts

机译:轴惯性摩擦焊接的建模与仿真

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摘要

The commercial materials forming package DEF0RM-2D is used to model the inertia friction welding (IFW) process with particular reference to aero-engine mainline drive shafts. Both representative and predictive modelling techniques are presented, and models are described for the welding of identical and dissimilar material/geometry combinations. The range of material properties required for the models are discussed and details of the tests carried out to produce suitable material data are included. Case studies involving Inconel 718 and AerMet 100 are presented. The phase transformations in a high-strength aerospace steel are included in the model and their effects on residual stresses are presented. Temperature profiles are compared with experimental thermocouple measurements and the models are also compared with upset and rotational velocity data collected during welding. The DEFORM-2D software in conjunction with a friction law coded into a subroutine are shown to be suitable for modelling the IFW process between similar and dissimilar shaft materials. Results highlight the importance of the inclusion of the volume change associated with the martensite transformation on the residual stresses generated during the post-weld cooling of IFW joints.
机译:商业材料成型包装DEF0RM-2D用于对惯性摩擦焊接(IFW)过程进行建模,尤其是参考航空发动机主轴传动轴。介绍了代表性和预测建模技术,并描述了用于焊接相同和不同材料/几何形状组合的模型。讨论了模型所需的材料特性范围,并包括了为生成合适的材料数据而进行的测试的详细信息。介绍了涉及Inconel 718和AerMet 100的案例研究。模型中包括了高强度航空航天钢的相变,并给出了它们对残余应力的影响。将温度分布图与实验热电偶测量值进行比较,并将模型与焊接过程中收集的不正常和旋转速度数据进行比较。已显示DEFORM-2D软件与编码到子程序中的摩擦定律相结合,适用于对相似和不同轴材料之间的IFW过程建模。结果强调了在IFW接头的焊接后冷却过程中,将与马氏体相变相关的体积变化纳入残余应力的重要性。

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