A finite element is developed to study the transient temperature fields and mechanical response during laser powder bed fusion processing and multi-layer deposition of a Ti6Al4V powder. Two different powder deposition time intervals are examined. The results of our analysis reveal that short-time interlayer intervals lead to a reduction of residual von Mises stress in the produced part. A good correspondence between the experimental and numerical results was found.

中文翻译：

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层间时间间隔对激光粉末床熔化Ti6Al4V合金残余应力分布的影响

开发了有限元来研究 Ti6Al4V 粉末激光粉末床熔融加工和多层沉积过程中的瞬态温度场和机械响应。研究了两种不同的粉末沉积时间间隔。我们的分析结果表明，短时间的层间间隔会导致生产零件中残余冯米塞斯应力的减少。实验结果与数值结果之间存在良好的对应关系。