Study on High Speed Machining for Super hard alloy by Dry EDM using Machining Center
| Project/Area Number |
15560108
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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 |
Production engineering/Processing studies
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| Research Institution | Tokyo Metropolitan College of Aeronautical Engineering |
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Principal Investigator |
YOSHIDA Masahiro Tokyo Metropolitan College of Aeronautical Engineering, Dept. of Mechanical Engineering, Associate Professor, 機械工学科, 助教授 (80220680)
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| Co-Investigator(Kenkyū-buntansha) |
KUNIEDA Masanori Tokyo University, Agriculture and Technology Institute of Symbiotic Science and Technology, Professor, 大学院・共生科学技術研究部, 教授 (90178012)
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| Project Period (FY) |
2003 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2004: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2003: ¥2,900,000 (Direct Cost: ¥2,900,000)
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| Keywords | Dry EDM / Machining center / Electrical discharge machining / 3-D Surface machining / Super hard alloy / 5-axis machining / Characteristic of machined surface / Servo-feed machining / インダクタンス / 給電板 / 擬似サーボ / 高応答性サーボ機構 / 放電加工 / 工具電極送り方法 / 加工速度 / 放電頻度 / 放電電流立上り |
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| Research Abstract |
In this research, we investigated the possibility of the Dry EDM(electric discharge machining) using machining centre (MC), and we attempted a super hard alloy machining by the Dry EDM using a die sinking EDM, and the research on three dimension machining (3-D machining) were done. First of all, it describes from the investigation result of the possibility that the Dry EDM is possible to process by using a MC. As a result, it have been obtained the higher machining speed when it processes Z axially and it reaches prescribed depth, the tool electrode is sent to the following processing point at high speed compared with when the tool electrode a little cut depth was put Z axially and the it was sent X axially at high speed. And the processing by the pseudo-servo sending using the Z axis of MC which have a high-speed sending ability and a high acceleration and deceleration ability was tried. In this result, the improvement of the machining speed reached the ceiling though the effect of a pseudo-servo was admitted, because the Z axis movement speed is a limit due to the Z axis have the heavy mass. Therefore, it is necessary to process it by using the working table with a high frequency response.
Here, a super heard alloy machining and the 3-D machining by Dry EDM using a traditional EDM are described. As a result, a super heard alloy machining, when the supersonic vibration was added to the tool electrode or the workpiece, the improvement of the machining speed and the tool electrode wear ratio were decreased. Moreover, 3-D machining was excellent the processing in the Dry EDM in the point of the machining speed, the tool electrode wear ratio, and the processing accuracy compared with the traditional EDM processing of the past. And we were tried to a 3-D machining by the Dry EDM using 5-axis machining. In this result, the machining speed's remarkably improving compared with the processing by 3-axis machining.
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Report
(3 results)
Research Products
(7 results)
