Title:
PROCESS FOR PRODUCTION OF FORGED ALUMINUM ALLOY MEMBER
Document Type and Number:
WIPO Patent Application WO/2011/129431
Kind Code:
A1
Abstract:
Disclosed is a forged member which is lightweight and has excellent mechanical properties.
An aluminum alloy material to be forged is prepared, which has a composition comprising 0.35 to 1.2 mass% of Mg, 0.2 to 1.3 mass% of Si, 0.5 mass% or less of Cu, 0.15 mass% or more of Fe, 0.05 mass% or more of Cr and 0.05 mass% or less of Mn, with the remainder being Al and unavoidable impurities. The aluminum alloy material is subjected to hot forging under temperature conditions that fulfill the following relational formula: [temperature of material to be forged (˚C)] ≤ [-260(˚C)×[sum total of the contents of Fe, Cr and Mn (mass%)]+440(˚C)].
Inventors:
TAKEMURA Hideki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
竹村 英貴 (〒45 福島県喜多方市字長内７８４０ 昭和電工株式会社喜多方事業所内 Fukushima, 〒9660845, JP)
MURAKAMI Hiroaki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
村上 寛秋 (〒45 福島県喜多方市字長内７８４０ 昭和電工株式会社喜多方事業所内 Fukushima, 〒9660845, JP)
竹村 英貴 (〒45 福島県喜多方市字長内７８４０ 昭和電工株式会社喜多方事業所内 Fukushima, 〒9660845, JP)
MURAKAMI Hiroaki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
村上 寛秋 (〒45 福島県喜多方市字長内７８４０ 昭和電工株式会社喜多方事業所内 Fukushima, 〒9660845, JP)
Application Number:
JP2011/059373
Publication Date:
October 20, 2011
Filing Date:
April 15, 2011
Export Citation:
Assignee:
SHOWA DENKO K.K. (13-9, Shiba Daimon 1-chome Minato-k, Tokyo 18, 〒1058518, JP)
昭和電工株式会社 (〒18 東京都港区芝大門一丁目１３番９号 Tokyo, 〒1058518, JP)
TAKEMURA Hideki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
竹村 英貴 (〒45 福島県喜多方市字長内７８４０ 昭和電工株式会社喜多方事業所内 Fukushima, 〒9660845, JP)
MURAKAMI Hiroaki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
昭和電工株式会社 (〒18 東京都港区芝大門一丁目１３番９号 Tokyo, 〒1058518, JP)
TAKEMURA Hideki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
竹村 英貴 (〒45 福島県喜多方市字長内７８４０ 昭和電工株式会社喜多方事業所内 Fukushima, 〒9660845, JP)
MURAKAMI Hiroaki (SHOWA DENKO K.K. 7840, Aza Nagauchi, Kitakata-sh, Fukushima 45, 〒9660845, JP)
International Classes:
C22F1/05; B21J5/00; C22C21/02; C22C21/06
Attorney, Agent or Firm:
SHIMIZU Yoshihito et al. (Idemitsu Nagahori Building, 4-26 Minamisemba 3-chome, Chuo-ku, Osaka-sh, Osaka 81, 〒5420081, JP)
Claims: