Investigation of Effects of Strip Metals and Relative Sliding Speeds on Friction Coefficients by Reversible Strip Friction Tests
Abstract
:1. Introduction
2. Determination of Friction Coefficient
3. Experimental Apparatus and Friction Test Conditions
4. Friction Test Results and Discussion
4.1. Friction Tests of Carbon Steel S25C Strip
4.2. Friction Tests of Brass C2680
4.3. Friction Tests of Aluminum 6063-T6
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Strip Material | Vickers Hardness (HV) | Rotation Speed ω (rpm) | (°) | Interface Condition | ||
---|---|---|---|---|---|---|
Case 1 | Carbon steel S25C (t = 1.1 mm) | 130 | 5, 7, 9 | 90 | Oil lubrication/Dry friction | 103 |
Case 2 | Brass C2680 (t = 0.5 mm) | 128 | 5, 7, 9 | 90 | Oil lubrication/Dry friction | 69 |
Case 3 | Aluminum 6063-T6 (t = 1.3 mm) | 83 | 5, 6, 7 | 90 | Oil lubrication/Dry friction | 48 |
Case 4 | Aluminum 6063-T6 | 83 | 5 | 30, 60, 90 | Dry friction | 48 |
Dry Friction | Lubrication | |||
---|---|---|---|---|
Friction Coefficient μ | Friction Coefficient μ | |||
0.288 | 0.120 | |||
0.292 | 1.4% | 0.154 | 22.1% | |
0.298 | 2.0% | 0.157 | 1.9% |
Material | Carbon Steel S25C | Al6063-T6 | Brass C2680 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Rotation Speed (rpm) | 5 | 7 | 9 | 5 | 5 | 5 | 6 | 7 | 5 | 7 | 9 |
Contact angle | 90 | 90 | 90 | 30 | 60 | 90 | 90 | 90 | 90 | 90 | 90 |
0.248 | 0.248 | 0.238 | 0.191 | 0.478 | 0.642 | 0.593 | 0.578 | 0.288 | 0.183 | 0.161 | |
[0.132] | [0.135] | [0.131] | [0.321] | [0.292] | [0.277] | [0.120] | [0.135] | [0.135] | |||
0.264 | 0.251 | 0.209 | 0.191 | 0.407 | 0.548 | 0.501 | 0.491 | 0.269 | 0.209 | 0.186 | |
[0.120] | [0.121] | [0.124] | [0.204] | [0.207] | [0.190] | [0.125] | [0.138] | [0.142] | |||
0.29 | 0.263 | 0.231 | 0.209 | 0.434 | 0.595 | 0.544 | 0.557 | 0.292 | 0.244 | 0.226 | |
[0.131] | [0.136] | [0.141] | [0.223] | [0.222] | [0.218] | [0.154] | [0.165] | [0.176] | |||
0.282 | 0.261 | 0.24 | 0.198 | 0.373 | 0.517 | 0.484 | 0.489 | 0.29 | 0.243 | 0.219 | |
[0.119] | [0.122] | [0.125] | [0.169] | [0.174] | [0.171] | [0.138] | [0.150] | [0.168] | |||
0.303 | 0.275 | 0.246 | 0.214 | 0.412 | 0.566 | 0.54 | 0.531 | 0.298 | 0.27 | 0.234 | |
[0.131] | [0.137] | [0.144] | [0.200] | [0.199] | [0.199] | [0.157] | [0.168] | [0.177] | |||
0.295 | 0.271 | 0.255 | 0.205 | 0.361 | 0.494 | 0.483 | 0.463 | 0.304 | 0.261 | 0.221 | |
[0.120] | [0.124] | [0.128] | [0.168] | [0.173] | [0.164] | [0.145] | [0.152] | [0.172] |
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Hwang, Y.-M.; Chen, C.-C. Investigation of Effects of Strip Metals and Relative Sliding Speeds on Friction Coefficients by Reversible Strip Friction Tests. Metals 2020, 10, 1369. https://doi.org/10.3390/met10101369
Hwang Y-M, Chen C-C. Investigation of Effects of Strip Metals and Relative Sliding Speeds on Friction Coefficients by Reversible Strip Friction Tests. Metals. 2020; 10(10):1369. https://doi.org/10.3390/met10101369
Chicago/Turabian StyleHwang, Yeong-Maw, and Chiao-Chou Chen. 2020. "Investigation of Effects of Strip Metals and Relative Sliding Speeds on Friction Coefficients by Reversible Strip Friction Tests" Metals 10, no. 10: 1369. https://doi.org/10.3390/met10101369