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Laser based additive manufacturing
Posted 2017年10月11日 GMT-4 11:41 Heat Transfer & Phase Change Version 5.3 0 Replies
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I am working of simulation for Selective Laser Melting(Additive Manufacturing). Simulation takes a powder layer of a metal typically of thickness 50um. Subsequently a laser beam (Gaussian ) scans a particular geometry. Powder melts to give molten metal and on cooling molten metal solidifies to metal that have different density(Implies solidified metal have different properties than initial powder taken). On starting I am simulating with spot laser scanning. I am having difficulty implicating how can we change properties of solidified metal while working with Heat transfer with Phase Change (Phase-1 Powder Phase-2 Molten) and solidified metal is having properties different then Phase 1 (There is basically volume shrinkage/density change between Phase-1-Powder and Solidified Metal)
Hello Faiyaz Ahsan
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