著者

大久保 通則

出版者

軽金属溶接構造協会

雑誌

軽金属溶接 (ISSN:03685306)

巻号頁・発行日

vol.42, no.8, pp.387-391, 2004-08

被引用文献数

2

著者

大久保 通則 小久 嘉弘

出版者

軽金属溶接構造協会

雑誌

軽金属溶接 (ISSN:03685306)

巻号頁・発行日

vol.45, no.7, pp.326-332, 2007-07

著者

長谷川 利之 大久保 通則

出版者

Japan Light Metal Welding Association

雑誌

軽金属溶接 (ISSN:03685306)

巻号頁・発行日

vol.49, no.8, pp.288-295, 2011

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High-strength Al-Cu based alloy is a low-weldability material with many technical problems to be solved in order to improve its weld properties. This reseach was performed to evaluate various joining processes and determine a satisfactory process in terms of the properties of Al-Cu alloy sheet of 0.8mm in thickness. YAG laser, disk laser and plasma welding were considered as high-energy beam joining processes. Furhtermore, we also considered FSW which was classified as solid-state welding. The properties of high-strength aluminum alloy welds produced with high energy beam welding and FSW were satisfactory, and reliable welded joints with higher tensile strengths coule be obtained. When evaluating the weld characteristics in the drop impact test, the YAG laser and disk laser welded joints did not fracture along the joined line and the fracture chracteristics were satisfactory. FSW and disklaser welding displayed good properties, and it was evident that a reliable joint could be obtained by control of the heat source. In the case of FSW, the relationship between tensile and drop impact properties of the joints was not elucidated.

著者

上村 直嵩 大久保 通則

出版者

一般社団法人日本機械学会

雑誌

機械材料・材料加工技術講演会講演論文集

巻号頁・発行日

vol.2006, no.14, pp.133-134, 2006-11-25

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Aluminum is superior in lightness, corrosion resistance, a strength characteristic, property to being processed in comparison with other metal. In addition, I am used as a use of various fields by adding various addition elements, and in late years the consumption is a rise course as metal helping resource saving/energy saving. This article used 2107 sheet aluminum alloy which I put GTA welding, plasma welding, YAG laser welding, disk laser welding for and performed a tension test, drop test. And I weighed data 2017 which I demanded against a basic material and each welding method and clarified a mechanical property and a shock characteristic of a welding coupling. In addition, welding was stable by stack welding and used filler A5356-BY which there was for welding room because it was not possible. In addition, I matched the strength characteristic that I put a filler in and examined.