| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Research Abstract |
In order to practice precision forging process of magnesium alloys in industry, occurrence of fracture of Mg alloys in forging were investigated. A ductile fracture criterion for Mg alloys in forging was suggested from the obtained results of some forging tests of Mg alloys. The proposed criterion was confirmed to be predicted the occurrence of fracture of Mg alloys accurately in some forging tests, compared with the conventional ductile fracture criteria. The influence of the ram motion on the occurrence of fracture of Mg alloys in forging was investigated on a servo press with controlled ram motion. The deceleration ram motion was effective ram motion for the ductility improvement of Mg alloys.
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