VALIDATION OF MINIATURISED TENSILE TESTING ON DMLS TI6AL4V (ELI) SPECIMENS

Authors

  • Ian van Zyl Department of Mechanical and Mechatronic Engineering, Central University of Technology
  • M Moletsane Department of Mechanical and Mechatronic Engineering, Central University of Technology
  • Pavel Krakhmalev Department of Engineering and Physics, Karlstad University
  • I Yadroitsava Department of Mechanical and Mechatronic Engineering, Central University of Technology
  • I Yadroitsev Department of Mechanical and Mechatronic Engineering, Central University of Technology

DOI:

https://doi.org/10.7166/27-3-1666

Keywords:

direct metal laser sintering, mechanical properties, miniaturized tensile test samples, Ti6Al4V

Abstract

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. 

Downloads

Download data is not yet available.

Downloads

Published

2016-11-11

How to Cite

van Zyl, I., Moletsane, M., Krakhmalev, P., Yadroitsava, I., & Yadroitsev, I. (2016). VALIDATION OF MINIATURISED TENSILE TESTING ON DMLS TI6AL4V (ELI) SPECIMENS. The South African Journal of Industrial Engineering, 27(3), 192–200. https://doi.org/10.7166/27-3-1666

Issue

Vol. 27 No. 3 (2016)

Section

General Articles

License

Authors who publish in the Journal agree to the following terms:
  1. Authors retain copyright and grant the Journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the Journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this Journal.