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Rapid prototyping full compacted metal parts has becoming the focus of attention in the domain of rapid prototyping. In this paper, the method of forming full compacted metal parts by selective laser melting has been put out and the experimental researches on it have been carried out. The surface quality and the inner microstructure of the parts formed by selective laser melting were analyzed. The full compacted metal parts without any micro-cracks have been attained. The test results show that the tensile strengthen of 316L stainless steel parts formed by selective laser melting is greater than that of casting 316L stainless steel parts.
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Deng et al. (2006) studied this question.