Production method null of aluminum alloy material and its production method, and aluminum alloy formation item for hot high-speed formation

摘要

PROBLEM TO BE SOLVED: To provide an aluminum alloy material having such an optimal alloy composition as to form a subgrain structure which can provide both of excellent formability at a high temperature and a high speed, and high strength after the material has been formed.;SOLUTION: The aluminum alloy material to be formed at the high temperature and the high speed comprises 2.0-8.0 mass% Mg, 0.05-1.0 mass% Mn, 0.01-0.3 mass% Zr, 0.06-0.4 mass% Si, 0.06-0.4 mass% Fe, and the balance Al with unavoidable impurities.;COPYRIGHT: (C)2007,JPO&INPIT