| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnesium alloy sheet material having superior cold-forming characteristics, and to provide a manufacturing method therefor. SOLUTION: The sheet material of the magnesium alloy is made from a wrought magnesium alloy which includes, by mass%, 1.0-5.0% aluminum, 0.2-2.0% zinc, 0.05-1.0% manganese and the balance magnesium with unavoidable impurities. The method for manufacturing a magnesium alloy sheet material to be press-formed includes: rolling the sheet material of the magnesium alloy at a high temperature in a range from a temperature 50°C lower than the solidus temperature to the solidus temperature, once or a plurality of times; and finish-rolling the sheet at a lower temperature than the above temperature. The magnesium alloy material to be press-formed produced by the method is also disclosed. Thus provided magnesium alloy sheet material has the same level of the cold-forming characteristics as those of an aluminum alloy. COPYRIGHT: (C)2010,JPO&INPIT |
