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Residual Stress Buildup in Ti Components Produced by Cold Spray Additive Manufacturing (CSAM)
Journal of Thermal Spray Technology ( IF 3.1 ) Pub Date : 2020-05-20 , DOI: 10.1007/s11666-020-01048-z
V. Luzin , O. Kirstein , S. H. Zahiri , D. Fraser

Cold spray has been developed recently to be used as an additive manufacturing technology in order to fabricate bulk components. Residual stresses are known to build up in coatings made by cold spray; therefore, cold spray additive manufacturing (CSAM) is also expected to generate residual stress in bulk parts and components, and that residual stress can lead to shape distortions or component cracking. The residual stress analysis has been applied to some generic sample shapes, a thick patch deposit and a vertical wall, produced by CSAM out of Ti powder. The residual stress mapping has been achieved using neutron diffraction technique and analyzed within a modeling approach. The analysis allowed it to be determined as to what were the major contributions into the overall stress field and to establish the main sources of the residual stress, providing an analytical tool for prediction of the residual stress buildup in more complex shapes.

中文翻译:

通过冷喷涂增材制造 (CSAM) 生产的钛部件中的残余应力积聚

冷喷涂最近被开发用作增材制造技术,以制造散装部件。已知残余应力会在冷喷涂涂层中累积;因此,预计冷喷涂增材制造 (CSAM) 也会在散装零件和组件中产生残余应力,而残余应力会导致形状变形或组件开裂。残余应力分析已应用于由 CSAM 用 Ti 粉末生产的一些通用样品形状、厚补丁沉积物和垂直壁。残余应力映射是使用中子衍射技术实现的,并在建模方法中进行了分析。通过分析可以确定对整体应力场的主要贡献是什么,并确定残余应力的主要来源,
更新日期:2020-05-20
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