Validation of miniaturised tensile testing on DMLS TI6AL4V (ELI) specimensVisa övriga samt affilieringar
2016 (Engelska)Ingår i: South African Journal of Industrial Engineering, ISSN 1012-277X, E-ISSN 2224-7890, Vol. 27, nr 3, s. 192-200
Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
Direct metal laser sintering (DMLS) is a relatively new technology that is developing rapidly. Since DMLS material is created by melting/solidifying tracks and layers from powder, even building geometry can influence the mechanical properties. To certify a material, the testing specimens must be designed and manufactured according to the appropriate standards. Miniaturised tensile DMLS samples could be a good alternative for express quality control, and could reduce the cost of DMLS-specific testing. In this study, as-built and stress-relieved miniaturised tensile DMLS Ti6Al4V (ELI) specimens with different surface qualities were investigated. The fracture surfaces and mechanical properties of the mini-tensile specimens were analysed and compared with standard full-sized specimens also manufactured by DMLS. The obtained data showed the applicability of mini-tensile tests for the express analysis of DMLS objects if a correction factor is applied for the calculation of the load-bearing cross-section of the specimen.
Ort, förlag, år, upplaga, sidor
Johannesburg: South African Institute of Industrial Engineers , 2016. Vol. 27, nr 3, s. 192-200
Nyckelord [en]
direct metal laser sintering, mechanical properties, miniaturized tensile test samples, Ti6Al4V
Nationell ämneskategori
Materialteknik
Forskningsämne
Materialvetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-47571DOI: 10.7166/27-3-1666ISI: 000389635100017OAI: oai:DiVA.org:kau-47571DiVA, id: diva2:1061976
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