@article{oai:kindai.repo.nii.ac.jp:00013795, author = {京極, 秀樹 and 生田, 明彦 and 上森, 武 and 白地, 貴之 and 吉川, 研一 and 大森, 整}, journal = {近畿大学次世代基盤技術研究所報告, Kinki University Research Institute of Fundamental Technology for Next Generation}, month = {Jun}, note = {[Abstract] 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 melting conditions on laser scanning 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., application/pdf}, pages = {95--100}, title = {〈原著論文〉超硬合金のレーザ積層造形}, volume = {2}, year = {2011}, yomi = {キョウゴク, ヒデキ and イクタ, アキヒコ and ウエモリ, タケシ and シラチ, タカユキ and ヨシカワ, ケンイチ and オオモリ, ヒトシ} }