搅拌摩擦焊接工艺过程的建模及热力耦合分析

Modeling and Thermal Mechanicalcoupling Analysis of Friction Stir Welding Process

搅拌摩擦加工技术是近些年发展起来的一种金属材料新型加工处理技术。搅拌摩擦焊接是一个复杂的温度场、流动场和力场相互耦合的、非线性的物理过程。基于FSW工艺过程热源的热力耦合模型,建立了搅拌摩擦焊接工艺过程可靠性模型,并分析了各工艺参数对工艺过程仿真分析的影响,提出了铝合金搅拌摩擦焊接工艺过程的建模及热力耦合分析方法,为进一步优化FSW焊接的工艺参数提供了理论参考。

Friction stir welding technology is a type of new technology for metal materials processing developed in recent years. Friction stir welding is a nonlinear mutual coupling physical process including complex temperature field, flow field and force field. A reliability process model of the FSW based on thermodynamic coupling model of FSW process heat source is established, and the influence of various process parameters on the simulation process is analyzed, a method of the alumi nums alloy friction stir welding process modeling and thermal coupling analysis is put forward, providing theoretical refer ence for further optimizing the FSW welding process parameters.