| Project/Area Number |
15K05763
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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 |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Tottori University |
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Principal Investigator |
KOIDE Takao 鳥取大学, 工学研究科, 教授 (60127446)
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| Co-Investigator(Kenkyū-buntansha) |
田村 篤敬 鳥取大学, 工学研究科, 准教授 (30394836)
本宮 潤一 鳥取大学, 工学研究科, 助教 (80781690)
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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 |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 歯車 / 焼結金属 / 表面転造 / 曲げ疲労強度 / 歯面強度 / 面圧強度 |
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| Outline of Final Research Achievements |
This research aims at reducing the environmental load for manufacturing power transmission gears by increasing the strength of sintered metal gears. In this study, we fabricated various surface-rolled case-carburized and quenched sintered metal gears, tested the operation, and investigated the load carrying capacity. The load carrying capacity was compared with the results for case-carburized and quenched wrought steel gears. As a result, in order to use the sintered material as a power transmission gear material, it is necessary to use a low alloy sintered material having a density of about 7.3 g/cm3 or more, and to form the tooth surface with a rolling tool optimized tooth profile. It is determined that the surface-rolling is effective and showed that there is a possibility of great reduction of environmental load related to manufacturing power transmission gears.
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