Manikandakumar Shunmugavel and Ashwin Polishetty and Moshe Goldberg and Junior Nomani and Guy Littlefair
Influence of Build Orientation on Machinability of Selective Laser Melted Titanium AlloyTi6Al4V
523 - 527
2017
11
8
International Journal of Materials and Metallurgical Engineering
https://publications.waset.org/pdf/10007564
https://publications.waset.org/vol/128
World Academy of Science, Engineering and Technology
Selective laser melting (SLM), a promising additive manufacturing (AM) technology, has a huge potential in the fabrication of Ti6Al4V nearnet shape components. However, poor surface finish of the components fabricated from this technology requires secondary machining to achieve the desired accuracy and tolerance. Therefore, a systematic understanding of the machinability of SLM fabricated Ti6Al4V components is paramount to improve the productivity and product quality. Considering the significance of machining in SLM fabricated Ti6Al4V components, this research aim is to study the influence of build orientation on machinability characteristics by performing low speed orthogonal cutting tests. In addition, the machinability of SLM fabricated Ti6Al4V is compared with conventionally produced wrought Ti6Al4V to understand the influence of SLM technology on machining. This paper is an attempt to provide evidence to the hypothesis associated that build orientation influences cutting forces, chip formation and surface integrity during orthogonal cutting of SLM Ti6Al4V samples. Results obtained from the low speed orthogonal cutting tests highlight the practical importance of microstructure and build orientation on machinability of SLM Ti6Al4V.
Open Science Index 128, 2017