| Project/Area Number |
20592275
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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 |
Prosthetic dentistry
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| Research Institution | Ohu University |
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Principal Investigator |
SHIMAKURA Michio Ohu University, 大学院・歯学研究科, 教授 (80111730)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEUCHI Misao 奥羽大学, 歯学部, 講師 (00245010)
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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 |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | レーザー溶接 / 歯科用金属 / レーザー波形 / 変形 / 硬さ / パルス波形 / 連続波 / 純チタン / 接合形態 / 溶融池 / ヴィッカース硬さ |
|---|
| Research Abstract |
Change of properties and deformation of theree dental metals after laser welding were examined. As a result, the metals were hardened and the metallograph was changed in the fusion zone. Besides, the deformation of the metal farames was smaller when the joint part prepared to bevelled edge compared with square edge and that was smaller when the laser was irradiated with the main pulse and the sabsequent weak addition pulse compared with the only main pulse. In three kinds of the metals, pure titanium was shown the smallest deformation, then Au-Ag-Pd alloy, Co-Cr alloy in that order.
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