Quantitative evaluation of spatter during Ti plate fabricated by SLM in vacuum

Yuji Sato; Masahiro Ihama; Yuta Mizuguchi; Norio Yoshida; Sasitorn Srisawadi; Dhritti Tanprayoon; Masahiro Tsukamoto

doi:10.1117/12.2578406

5 March 2021 Quantitative evaluation of spatter during Ti plate fabricated by SLM in vacuum

Yuji Sato, Masahiro Ihama, Yuta Mizuguchi, Norio Yoshida, Sasitorn Srisawadi, Dhritti Tanprayoon, Masahiro Tsukamoto

Author Affiliations +

Proceedings Volume 11677, Laser 3D Manufacturing VIII; 116770Q (2021) https://doi.org/10.1117/12.2578406
Event: SPIE LASE, 2021, Online Only

Abstract

A pure titanium (Ti) plate was fabricated by selective laser melting (SLM) in a vacuum. Ti is attractive materials for medical, aerospace, and automotive applications, because they have properties of biocompatibility, high corrosion and erosion resistance, and mechanical resistance, but forming complicated structures is challenging due to difficulties working the material. Although some studies have reported to form pores in SLMed samples due to spattering generated by laser irradiation, and there are few reports that investigate the details of the correlation between spatter and pores. Spatter results in an insufficient input energy to the powder bed because the laser is absorbed by the spatter particles. Consequently, technology to suppress the amount of spatter for SLM processes is needed. In this study, the quantitatively evaluation method for the amount of spatter was developed with high speed video camera while the SLM processes.

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Citation Download Citation

Yuji Sato, Masahiro Ihama, Yuta Mizuguchi, Norio Yoshida, Sasitorn Srisawadi, Dhritti Tanprayoon, and Masahiro Tsukamoto "Quantitative evaluation of spatter during Ti plate fabricated by SLM in vacuum", Proc. SPIE 11677, Laser 3D Manufacturing VIII, 116770Q (5 March 2021); https://doi.org/10.1117/12.2578406

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