In this study, the fabrication conditions of WC cemented carbides by direct selective laser melting were investigated. The effects of additives, such as Co, Cu-20%Sn and Cu powders, and laser scanning conditions on laser sintering process were examined to fabricate a sound laser-scanned body of WC cemented carbides. The optimum laser power, scan speed and scan pitch were found out by experiments. It was found that the continuously smooth single-scan track can be obtained at a lower laser power and a higher scan speed by the addition of 30% Cu powder. The smooth surface of the laser-scanned body could be fabricated at a laser power of 9 W, a scan speed of 20 mm/s and a scan pitch of 0.05 mm.
- Dynamic Systems and Control Division
Direct Selective Laser Sintering of WC-Co Cemented Carbide by Premixing of Additives
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Kyogoku, H, Uemori, T, Ikuta, A, Yoshikawa, K, & Ohmori, H. "Direct Selective Laser Sintering of WC-Co Cemented Carbide by Premixing of Additives." Proceedings of the ASME/ISCIE 2012 International Symposium on Flexible Automation. ASME/ISCIE 2012 International Symposium on Flexible Automation. St. Louis, Missouri, USA. June 18–20, 2012. pp. 465-468. ASME. https://doi.org/10.1115/ISFA2012-7182
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