Tribological characterization and development of coefficient friction in high surface area expansion ratio
Project/Area Number |
22560137
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Design engineering/Machine functional elements/Tribology
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Research Institution | University of Toyama |
Principal Investigator |
AIDA Tetsuo 富山大学, 大学院・理工学研究部(工学), 准教授 (20283062)
|
Project Period (FY) |
2010 – 2012
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Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
Keywords | トライボロジー / 表面積拡大 / 熱間 / 熱間加工 / 摩擦係数 / トライボテスト / 硬質被膜 / 潤滑剤 / トライボ特性 / 表面積拡大化 / 表面積拡大比 |
Research Abstract |
A new, simulative test of friction and lubrication in cold forging is developed by the authors. The test is based on a backward can extrusion process in which the workpiece rotates relatively to the conical punch. An analytical model is presented determining the friction stress from the measured torque during testing combined with an analysis of the sliding velocity distribution along the punch nose. The latter is determined by FE analysis of the test. Results show friction stress for unalloyed low C-steel provided with different types of lubricants, i.e. phosphate coating plus soap, phosphate coating plus MoS2 and single bathe lubrication with PULS and aluminum provided with 6 different lubricants. The new test is so severe, that it is possible to break down the best lubrication systems for cold forging of steel and aluminum.
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Report
(4 results)
Research Products
(7 results)
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[Journal Article]2012
Author(s)
E.Ceron, N.Bay, T.Aida, K.Dohda, T.E.Nicolaisen
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Journal Title
Related Report
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