Additive Manufacturing Method with Metal Powder by Selective Sintering and Melting Using Micro Electrical Discharge
| Project/Area Number |
15K05735
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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 | Toyota Technological Institute |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 付加製造技術 / 放電 / 粉末床溶融結合 / 走査 / ツイン電極 / 帯電 / 積層造形 / 放電加工 / 微細加工 / 粉末 / 堆積加工 / 溶融 / 放電回路 / 焼結 / 静電気 |
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| Outline of Final Research Achievements |
This study proposed an additive manufacturing method with metal power solidified by electrical discharge and demonstrated three-dimensional (3D) shape fabrication.
3D modeling machines by Powder Bed Fusion (PBF) can be used to fabricate prototypes and small-lot products by solidifying metal powder directly. Because their heat sources such as laser or electron beam are still expensive, it is difficult to lower the cost of the machines.
The proposed method is a kind of PBF. A 3D shape is fabricated by repeating the spread of metal powder and solidification by electrical discharge with twin electrodes in air. The twin electrodes are connected to a capacitance discharge circuit with a bipolar DC power supply. The fabrication of 3D shapes were demonstrated by scanning the twin electrode and lifting powder layers. The powder around the discharge position sometimes scattered due to the discharge or adheres to the electrode. Using a transistor discharge circuit reduced the scattering.
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Report
(5 results)
Research Products
(5 results)
