| Project/Area Number |
21K14434
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 26050:Material processing and microstructure control-related
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
韓 偉 東京大学, 生産技術研究所, 特任助教 (70893709)
|
|---|
| Project Period (FY) |
2021-04-01 – 2022-03-31
|
| Project Status |
Discontinued (Fiscal Year 2021)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2024: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | Electropolishing / Micro-textured surface / Additive manufacturing / Selective laser melting |
|---|
| Outline of Research at the Start |
The EP process is carried out in a eutectic mixture consisting of choline chloride and propylene glycol and, alternatively, ethylene, and the workpiece is 316L SS parts fabricated by SLM with designed micro-texture on surface. Five stages constitute the research plan, including development of experimental setup, fabrication of micro-textured surface by SLM and EP the fabricated parts, fundamental study of EP with DESs and pulse voltage, and EP micro-textured surface.
|
| Outline of Annual Research Achievements |
Aluminum samples were additive manufactured with different laser conditions, such as the scan speed, hatch distance, scan interval, and laser power. The effects of various laser conditions on the electropolished surface were studied. It was found that the laser power was of critical importance for the electropolished surface quality. This is because the final polished surface is closely related to the initial surface quality which was mainly determined by the applied laser power.
|
