Title:
ALUMINUM ALLOY-MADE FORGED MEMBER AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2022161591
Kind Code:
A
Abstract:
To provide an aluminum alloy-made forged member which has excellent tensile characteristics and sufficiently secures strength and reliability as the whole member, in which variations in microstructures and tensile characteristics are suppressed and to provide an efficient manufacturing for producing the same.SOLUTION: There is provided a method for manufacturing an aluminum alloy-made forged member by forging an aluminum alloy-made billet, wherein the aluminum alloy-made billet comprises 0.6 to 1.2 mass% of Si, 0.1 to 0.25 mass% of Fe, 0.2 to 1.1 mass% of Cu, 0.7 to 1.2 mass% of Mg, 0.1 to 0.4 mass% of Cr, more than 0 to 0.1 mass% of Ti and the balance Al with inevitable impurities, a content of Mg2Si is 1.1 to 1.8 mass%, an amount of excessive Si not constituting Mg2Si is 0.1 to 0.7 mass% and a temperature-compensated strain rate (Z) in the forging process satisfies a following expression, Z>2×1012 or Z≤2×1010.SELECTED DRAWING: None
Inventors:
YATSUKURA MASAHITO
KOYAMA KOHEI
KOYAMA KOHEI
Application Number:
JP2021066523A
Publication Date:
October 21, 2022
Filing Date:
April 09, 2021
Export Citation:
Assignee:
NIKKEIKIN ALUMINIUM CORE TECH CO LTD
International Classes:
C22C21/06; C22C21/02; C22F1/05
Attorney, Agent or Firm:
Patent business corporation ipr consultant