| 摘要 |
PROBLEM TO BE SOLVED: To provide a deep drawing method of a magnesium alloy plate, and a product by the method. SOLUTION: In a method for manufacturing a deep-drawn body of a magnesium alloy plate, superplastic deformation is performed by deep-drawing the magnesium alloy plate consisting of grains of the mean grain size of≤40μm and of the thickness of≥0.2 mm and≤10 mm in a temperature range of≥423K and≤723K and in a strain ratio of≥1×10<SP>-4</SP>1/s and≤1×10<SP>1</SP>1/s so that the true strain is partly≥1.0, and the strength (hardness) is given by refining the grains by the dynamic recrystallization occurring during the deep-drawing. COPYRIGHT: (C)2004,JPO |
