Abstract
In the process of deposition, the moving high energy heat source effect on the metal entity, and form the molten pool and the temperature field of directional conduction. Powder is accumulated in the substrate point by point, molten powder instantly solidify into a solid which is combined with substrate (or sediment) to reach metallurgical combination, from the perspective of the thermodynamic, the temperature field produced by coupling ring of heat source is regarded as a moving load to the base plate and the sedimentary section, and transient thermal stress field is generated, the load and boundary conditions (temperature field) of thermal stress field change over time, at the same time, the solution domain of thermal stress field change over time as a result. Therefore, through the life and death unit technology (ANSYS finite element analysis software of advanced analysis techniques) combined with the circulation order, the simulation of point to add deposition process is realized.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Y.Q. Wang: The key technology research and material development of arc spraying mold manufacturing D]. Doctoral Dissertation of sian jiaotong university, 2001, 10.
2. Z.D. Yan：Plastic Machanics，Tianjin University Press，1988: 58-64.
3. Z.G. Xia：Plastic Machanics，Tongji University Press，1991: 67.
4. B.J. Yang：Analysis of stress yield surface of gray cast iron and three-dimensional thermal elastic-plastic stress ，Journal of Xi'an Jiaotong University，1992, (8): 37-46.
5. M.D. Wang, S.H. Shi, X.B. Liu. Numerical Simulation on Temperature Field in Multi-layers Inside-Beam Powder Feeding when Laser Cladding. Key Engineering Materials. Vols: 499 (2012): 114-119.