| Project/Area Number |
26420063
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Chubu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
稲崎 一郎 中部大学, その他の部局, 理事 (30051650)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 切削 / 表面特性 / 残留応力 / 耐疲労性 / 切削加工 / 硬化層 / 切れ刃形状 / 超音波振動 / 疲労特性 / 疲労試験 |
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| Outline of Final Research Achievements |
It is well known that the compressive residual stress of a metal surface leads to an extension of fatigue life. However, the cut surface generally results in a tensile residual stress. Therefore, to improve the strength reliabilities of machine parts, we have developed a high compressive residual stress generation method that uses cutting.
The main results of this study are as follows. (1)A high compressive residual stress that exceeds -1000 MPa was generated by cutting, and the resistance of the material to fatigue was significantly improved as a result. (2)Residual stress anisotropy was evident in the cut surface and the tool feed direction of the surface had a strong compressive residual stress tendency and was superior to the cutting direction in terms of resistance to fatigue.
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