This fundamental research deals with the investigation of material property model influences on distortion induced by multi-layered Wire Arc Additive Manufacturing (WAAM) with synergic-pulsed gas metal arc welding (P-GMAW) process which was modelled and simulated by means of non-linear numerical computation. The material property models of stainless steel SS316L component to be compared stem from three different sources namely existing database, initial wire and evolved component. The new property models were generated with advanced material modelling software JMATPRO based on chemical compositions analysed at initial wire and component using SEM–EDX. The flow curve for each material model was taken with the strain rates ranging from 0.001 to 1.0 s⁻¹. In the numerical simulation, a coupled thermomechanical solution was adopted including phase-change phenomena defined in latent heat. Goldak’s double ellipsoid was applied as heat source model and simplified rectangular bead with hexagonal element type and meshing was developed to avoid extensive pre-processing effort and to reduce the computational time at post-processing level. Temperature behaviour due to the successive layer deposition was simulated considering heat transfer effect coupled to mechanical analysis. The adjustment of simulative transient to experimental thermal distribution lead to new fitted heat transfer coefficient. Prior to execution of numerical simulation, a sensitivity analysis was conducted to find the optimal number of elements or mesh size towards maximum reached temperature. It can be concluded based on the adjusted model, selected mesh size and experimental validation that numerical computation of substrate distortion with evolved material property of component and initial wire of SS316L yield closer average result within the relative error ranging between 11 and 16% compared to database material giving more than 22%.

这项基础研究旨在研究材料特性模型对协同脉冲气体保护金属电弧焊（P-GMAW）工艺对多层电弧焊增材制造（WAAM）引起的变形的影响，该建模和模拟是通过非脉冲电弧焊进行的。线性数值计算。待比较的不锈钢SS316L零件的材料性能模型来自三个不同的来源，即现有数据库，初始焊丝和演变后的零件。新特性模型是使用先进的材料建模软件JMATPRO生成的，该软件基于使用SEM-EDX在初始焊丝和组件上分析的化学成分。每种材料模型的流动曲线均采用0.001至1.0 s ^-1的应变速率。在数值模拟中，采用了耦合的热机械解决方案，其中包括潜热中定义的相变现象。应用Goldak的双椭圆体作为热源模型，并开发了具有六边形元素类型和网格的简化矩形珠，从而避免了广泛的预处理工作并减少了后处理级别的计算时间。考虑到热传递效应和机械分析，模拟了由于连续的层沉积而引起的温度行为。模拟瞬态对实验热分布的调整导致新的拟合传热系数。在执行数值模拟之前，进行了敏感性分析，以找到朝向最大达到温度的最佳单元数或网格尺寸。