| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
In order to check the extrusion form at the time of continuation processing and improve the mechanical properties, the AC4CH aluminum casting alloy was extruded by the 6 axes ECAP method. When back pressure was applied, generating of the void due to a rapid pressure drop was suppressed. As a result, the improvement in a tensile strength was remarkable at semi-solid material. Furthermore, a continuous feeding is possible for the shape by which was extruded enough to the next pass. As a result, the distortion was maintained by the semi-solid casting and creation of the material whose strength improved by the addition to ECAP method was attained.
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