Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting

Arthur, Nana KK2021-07-092021-07-092019-04Arthur, N.K. 2019. Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting. Materials Science Forum, 950. http://hdl.handle.net/10204/120460255-5476https://doi.org/10.4028/www.scientific.net/MSF.950.44http://hdl.handle.net/10204/12046The laser engineered net shaping (LENS) system was used for the laser based manufacturing of a test geometry used to assess the performance of additive manufacturing systems. This system was preferred over a selective laser melting (SLM) system due to certain inherent benefits that would promote the manufacture of the test geometry where the SLM system had failed due to part delamination. The test geometry was successfully manufactured on the LENS system and machined to produce test specimen for mechanical testing and microstructural evaluation. Investigations revealed that the α-β lamellar microstructure was formed via in situ martensitic decomposition of the α’ structure. This resulted in promising yield and tensile strengths in excess of 900 MPa and high tensile elongation up to 13%.AbstractenDirect energy depositionLaser based manufacturingMartensiteSelective laser meltingTi6Al4V ELILaser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser meltingArticleArthur, N. K. (2019). Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting. Materials Science Forum, 950, http://hdl.handle.net/10204/12046Arthur, Nana KK "Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting." Materials Science Forum, 950 (2019) http://hdl.handle.net/10204/12046Arthur NK. Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting. Materials Science Forum, 950. 2019; http://hdl.handle.net/10204/12046.TY - Article AU - Arthur, Nana KK AB - The laser engineered net shaping (LENS) system was used for the laser based manufacturing of a test geometry used to assess the performance of additive manufacturing systems. This system was preferred over a selective laser melting (SLM) system due to certain inherent benefits that would promote the manufacture of the test geometry where the SLM system had failed due to part delamination. The test geometry was successfully manufactured on the LENS system and machined to produce test specimen for mechanical testing and microstructural evaluation. Investigations revealed that the α-β lamellar microstructure was formed via in situ martensitic decomposition of the α’ structure. This resulted in promising yield and tensile strengths in excess of 900 MPa and high tensile elongation up to 13%. DA - 2019-04 DB - ResearchSpace DP - CSIR J1 - Materials Science Forum, 950 KW - Direct energy deposition KW - Laser based manufacturing KW - Martensite KW - Selective laser melting KW - Ti6Al4V ELI LK - https://researchspace.csir.co.za PY - 2019 SM - 0255-5476 T1 - Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting TI - Laser based manufacturing of Ti6Al4V: A comparison of LENS and selective laser melting UR - http://hdl.handle.net/10204/12046 ER -22368