著者

羽賀 俊雄 澤井 雅和 乾 秀喜 阪口 洋

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

巻号頁・発行日

vol.2006, pp.119-120, 2006

---

It is necessary to reduce the weight of an automobile body for an environment. Aluminum alloy parts are adopted instead of steel parts to reduce the weight. A6061 is more economy than A6016 and A6022 used for an automobile at present. This study used A6061 instead of A6016 and A6022. Process of roll casting has several advantages, including rapid solidification and low running cost. Furthermore, recycled aluminum was economy. This study examined A6061+0.2%Fe as model of recycled aluminum alloy. Roll casting of A6061 and A6061+0.2%Fe were tried using an unequal diameter twin roll caster. The casting speed was 30m/min. Thickness of strips were 4.8mm of A6061 and 4.6mm of A6061+0.2%Fe. The strips were rolled down to 1.0mm by cold rolling. T4 heat treated strips was operated with deep drawing and 2.0 of LDR value could be attained. As a result, this process prevented deterioration of a mechanical property.