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Author Das, S. Beaman, J J. Wohlert, M. Bourell, D L. Institution Univ of Texas at Austin, Austin, TX, USA
Source Materials Research Society Symposium Proceedings. v 542 1999. p 45-50. Conference Information Proceedings of the 1998 MRS Fall Meeting - Symposium V, 'Solid Freeform and Additive Fabrication'. Boston, MA, USA. 19981130-19981203.
Abstract This paper presents the development of Selective Laser Sintering/Hot Isostatic Pressing (SLS/HIP) technology for production of functional high performance components in the titanium alloy Ti-6Al-4V. SLS/HIP is a net shape manufacturing technique that combines and exploits the freeform shaping capability of selective laser sintering and the full densification capability of hot isostatic pressing. The advantages of SLS combined with in situ HIP encapsulation include single step net shape canning, full densification by containerless HIP, no container-powder adverse interactions, reduced pre-processing time, and minimal post-process machining compared to conventional HIP of canned powders. Microstructure and mechanical properties of SLS processed and HIP post-processed Ti-6Al-4V are consistent with conventionally processed material. The potential of SLS/HIP technology was demonstrated by net shape fabricating a component to specification, namely the titanium guidance section housing base for the A IM-9 Sidewinder missile. (Auth abstract) [References: 9] XX