1. H. Wirtz, C. Freyer, Investment casting shell in 1 day using selective laser sintering (SLS), Foundryman 93 (1) (2000) 63–65.
2. J.F. Zhao, Rapid manufacturing of metal parts based on SLS technology, Special Cast. Nonferrous Alloys (5) (2000) 9–10 (in Chinese).
3. Y.G. Wang, Rapid Prototyping Technology, Publishing Company of HUST, Wuhan, China, 1999 (in Chinese).
4. Experimental study of the basic process mechanism for direct selective laser sintering of low-melting metallic powder;Yong;Ann. CIRP,1997
5. Progress in additive manufacturing and rapid prototyping;Kruth;Ann. CIRP,1998