A Study for generation mechanism and countermeasures of vibration on BTA Deep Hole Drilling Process
| Project/Area Number |
20560219
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Kyushu University |
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Principal Investigator |
MATSUZAKI Kenichiro Kyushu University, 工学研究院, 准教授 (80264068)
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| Co-Investigator(Kenkyū-buntansha) |
RYU Takahiro 大分大学, 工学部, 教授 (60230877)
SOWA Nobuyuki 九州大学, 大学院・工学研究院, 助教 (40304753)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | BTA / ライフリングマーク / パターン形成 / 自励振動 |
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| Research Abstract |
In the BTA deep hole drilling process, a chatter vibration sometimes occurs and a rifling mark is formed on the surface of the hole. The generating mechanism of the rifling mark in BTA deep hole drilling process is studied numerically as a self-excited vibration caused by time delay. Also, the preventing method by an additional guide pad is proposed, and the effect of the preventing method and the optimal location of the guide pads is studied. Furthermore, the results of numerical analysis and the effect of the preventing method is confirmed by experiments using an actual BTA deep hole drilling machine.
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Report
(4 results)
Research Products
(11 results)
