| Project/Area Number |
16K17997
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | TiNi / ニッケルチタン / 超弾性 / 形状記憶合金 / 相変態制御 / マルテンサイト変態 / TiNi合金 / ニッケルチタン合金 / NiTi / 形状記憶 / Ni-Ti / 相変態 / 切削特性 |
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| Outline of Final Research Achievements |
In this study, we investigated the cutting characteristics of TiNi alloy known as superelastic / shape memory alloy, and improved machinability by phase transformation control. As a result, it was clarified that the cutting temperature reached the shape memory treatment temperature when cutting the TiNi alloy and the shape was memorized. We also clarified that cutting force is generated and chips are generated due to superelasticity even when cutting feed is stopped. In addition, various cutting conditions and tool shapes were changed to examine the cutting characteristics and the optimum conditions were examined. Furthermore, by conducting ultra precision machining, the chip generation mechanism was investigated by crystallographically. On the other hand, since the cutting temperature becomes extremely high under either condition, cooling cutting was not effective and it is found that the minute cutting conditions are suitable.
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