| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
To reduce forming load, control microstructure and material flow of workpiece, forging process with torsion motion was developed. Following achievements were obtained. (1) Apparatus for forging with torsion motion was originally designed and developed. (2) Effects of torsion motion on forming load, microstructure and material flow were investigated in upsetting and die forging processes of aluminum workpiece by forging experiment on the forging apparatus and the finite element analysis. (3) Mechanisms of reduction of the forming load and change in the material flow were discussed from viewpoint of theory of plasticity. The validity of the torsion motion conditions (torsion speed, amplitude) was proposed.
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