| Project/Area Number |
24360052
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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 | Tokyo Institute of Technology |
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Principal Investigator |
YOSHIOKA Hayato 東京工業大学, 理工学研究科, 准教授 (90361758)
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| Co-Investigator(Kenkyū-buntansha) |
SHINNO Hidenori 東京工業大学, 精密工学研究所, 教授 (40196639)
SAWANO Hiroshi 東京工業大学, 精密工学研究所, 助教 (40514295)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2014: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2012: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Keywords | 位置決め / 工具サーボ / 回転主軸 / 超磁歪素子 / 工作機械 / 精密位置決め / 切削加工 / 工具 / 高速工具サーボ / 自己検知 |
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| Outline of Final Research Achievements |
Demands for machining three-dimensional geometries have increased. It is difficult to apply a fast tool servo technique to milling process by rotational tools. This research aims to develop a new tool servo technology. The new concept of tool servo driven by a giant magnetostrictive actuator was proposed in this project, and a prototype system was developed. The developed mechanism can be characterized by a compact structure, a noncontact structure, and high accuracy. Performance evaluation results confirm that the developed tool servo system provides precise linear motion during rotating. Furthermore, to realize the positioning without additional displacement sensors a new estimating method of displacement using a magnetostrictive actuator as a sensor device was also proposed, and the experimental results shows that the method can estimate deformation of actuator and be used for feedback.
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