著者

権田 英修 白井 康宏 大橋 修 安井 利明 福本 昌宏

出版者

一般社団法人 溶接学会

雑誌

溶接学会論文集 (ISSN:02884771)

巻号頁・発行日

vol.29, no.4, pp.358-363, 2011 (Released:2012-01-18)

参考文献数

12

被引用文献数

1 1

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Generally, cemented carbides (WC-Co) that consist of tungsten carbides and cobalt are used for cutting tools. But since cemented carbides are made of import dependent rare metal, reuse and recycling are required. If cylindrical shanks that the cutting edges are cut off can be combined, it is possible to reuse those shanks as new cutting tools. But in this case, the joining strength of brazing method tends to be rather weak for being used as cutting tools. Instead of the brazing method, the diffusion bonding will be expected with the high strength and the small deformation. Many studies on the diffusion bonding were reported, but there were few studies on the diffusion bonding of cemented carbides.In this study, a potential for applying the diffusion bonding of carbides was investigated. So the effect of the bonding condition on the bending strength, the microstructure of the bonding line and the distribution of tungsten and cobalt were examined. As a result, the strength of the diffusion bonding was higher than that of the brazing at higher than 1100°C, and at 1200°C, it was almost the same as the base metal's strength. Cemented carbides were successfully joined by the diffusion bonding.

著者

福本 昌宏 真野 大地 中野 健太 Liu Qipeng Yang Kun

出版者

一般社団法人 溶接学会

雑誌

溶接学会全国大会講演概要

巻号頁・発行日

vol.92, pp.142-143, 2013-03-21

参考文献数

2

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遷移温度および遷移圧力で定義する特異点を境に発生する溶射粒子偏平形態の遷移を引き起こす原因解明のために,各種条件下で得た粒子縦断面組織を詳細に検討した結果,基材接触界面に形成される超急冷凝固層がスプラッシュ発生を抑制し,ディスク状偏平をもたらす機構を明らかにした.

著者

福本 昌宏

出版者

社団法人溶接学会

雑誌

溶接学会誌 (ISSN:00214787)

巻号頁・発行日

vol.68, no.8, pp.617-633, 1999-12-05

参考文献数

127

被引用文献数

6

著者

田中 康徳 福本 昌宏

出版者

社団法人溶接学会

雑誌

溶接学会全国大会講演概要

巻号頁・発行日

no.63, pp.56-57, 1998-09-10