Journal
SOUTH AFRICAN JOURNAL OF INDUSTRIAL ENGINEERING
Volume 23, Issue 3, Pages 119-129Publisher
SOUTHERN AFRICAN INST INDUSTRIAL ENGINEERING
DOI: 10.7166/23-3-515
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- CSIR
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Selective laser melting (SLM) of Ti-6Al-4V has significant potential in the aerospace and biotechnology industries. SLM employs a focused laser beam to melt successive layers of metallic powder into complex components. This process can result in the generation of high thermally-induced residual stresses. These residual stresses, together with micro-flaws/pores from the inherent fabrication process, may lead to premature fatigue crack initiation and propagation at relatively low cyclic stresses. The hole-drilling strain gauge method was used to evaluate residual stresses within SLM Ti-6Al-4V specimens, with the intention of understanding the associated mechanisms for the successful application of SLM Ti-6Al-4V in industry.
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