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首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.4; Jul 7-11, 2003; Leganes, Madrid, Spain >UTILITY OF RELATIVELY SIMPLE MODELS FOR UNDERSTANDING PROCESS PARAMETER EFFECTS ON FSW
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UTILITY OF RELATIVELY SIMPLE MODELS FOR UNDERSTANDING PROCESS PARAMETER EFFECTS ON FSW

机译：理解FSW的过程参数效果的相对简单模型的实用性

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摘要

In this paper two models of the Friciton Stir Welding process will be discussed. The first is a thermal model which is used to simulate temperature profiles in friction stir welds. -The required inputs for this model are total input power, tool geometry, thermo-physical properties of the material being welded (density, conductivity, specific heat) welding speed and boundary conditions. The output from the model can be used to rationalize observed hardness and microstructure distributions. The second model is a fully coupled, 2-D fluid mechanics based process model that is used to make parametric studies of variations in properties of the material to be welded (mechanical and thermophysical) and variations in welding parameters. Results from this model provide insight regarding the effect of material properties on friction stir weldability and on potential mechanisms of defect formation. Both models are readily implemented on a Windows or similar computing platform. Limitations and critical issues for extension of the models will be discussed.
机译：在本文中，将讨论Friciton搅拌焊接过程的两个模型。第一个是热模型，用于模拟搅拌摩擦焊缝中的温度曲线。 -该模型所需的输入是总输入功率，工具几何形状，被焊接材料的热物理性质（密度，电导率，比热）焊接速度和边界条件。该模型的输出可用于合理化观察到的硬度和微观结构分布。第二个模型是基于2D流体力学的全耦合过程模型，用于对待焊接材料（机械和热物理）的特性变化以及焊接参数变化进行参数研究。该模型的结果提供了有关材料特性对搅拌摩擦焊接性的影响以及缺陷形成的潜在机理的见解。两种模型都可以在Windows或类似的计算平台上轻松实现。将讨论模型扩展的局限性和关键问题。

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