A study of the metal matrix friction materials of hot pressing using Taguchi method
| Autor: | Chih-Yuan Weng, 翁治源 |
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| Rok vydání: | 2014 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 102 The purpose of the paper investigated the effect of the different compositions of the ferrous, copper, and copper/ferrous matrix friction materials that were fabricated by hot press of 850℃, 480kgf/cm2, and 40min on the coefficient of friction and wear rate using Taguchi method. Besides, their wear mechanisms were studied as well. The metal matrix of the formula was Cu, Fe, Sn and Zn, the lubricant was graphite, and the friction modifier was SiO2. The experiment results showed that under the larger and the better for the coefficient of friction and the smaller and the better for the wear rate using Tachugi method, the copper matrix friction material was the best performance, the next was copper/ferrous matrix friction material, and the ferrous matrix friction material was the worst. The more proportion of copper amount in the copper matrix friction material showed the larger coefficient of friction and the smaller wear rate. Furthermore, the more amount of tin and silicon oxide displayed the better coefficient of friction and wear rate. The best compositions for getting a best friction performance were 42wt%Cu-6wt%Sn-2wt%Zn- 20wt%C-30wt%SiO2. The wear mechanisms for the copper matrix friction materials mainly showed abrasive wear and adhesion wear, and roughness to cause the formation of the coefficient of friction and wear. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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