仿真预测增材制造的变形:Ti6Al4V零件
本文摘要（由AI生成）：
本文综述了选择性激光熔化（SLM）过程中形状畸变的研究现状。引用多篇文献，涉及SLM制造过程中形状畸变的热机械建模、残余应力和变形的调查研究、工艺参数对SLM中Ti 6Al-4V组件的影响、扫描策略对SLM中Ti6Al4V的残余应力和机械性能的影响、SLM获得金属部件的残余应力实验研究、SLM中工艺参数对残余应力相关畸变的影响、SLM中部件畸变的有限元建模、以及SLM中的畸变预测和补偿等方面。这些研究对于优化SLM工艺、提高产品质量具有重要意义。
增材打印
能够从数字模型制造出功能完整的复杂几何，增材制造(AM)已成为一种成熟的制造技术，其直接从CAD表示中逐层制造零件。AM在过去十年中经历了巨大的发展，航空、国防、汽车和医疗行业已经开始使用这种技术。选择性激光熔炼(SLM)是一种逐层增材制造技术，其零件由粉末制成。将薄的粉末层沉积在已建的托盘上，然后通过扫描激光束选择性地烧结。在这个过程中，材料被局部迅速加热到高于熔点的温度，然后被允许凝固和冷却，形成致密的几何形状。由于热源的高度集中 特性，使其具有极高的加热和冷却速率，导致很大的热梯度。因此，残余应力和变形是不可避免。
增材仿真
结论
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