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초록
We investigated the effect of the friction coefficients of a barrel on grinding performances in a planetary ball mill. The linear velocity of chips, impaction and shear energy according to the friction coefficients were simulated by the discrete element method (DEM). The increase of the friction coefficient of the barrel not only improves the shear energy due to increasing the relative velocity between chips, but also reduces the impaction due to decreasing the average linear velocity of the chips. Finally, we validated the simulated result by measuring the removal amount of chips before and after grinding test and comparing with shear energy. The experimental results show the similar trend as the simulated results.
키워드
Finite difference method; Friction; Grinding (machining); Shear flow; Tribology; Friction coefficients; Grinding performance; Grinding tests; Linear velocity; Planetary ball mill; Relative velocity; Shear energy; Simulated results; Ball mills
- 제목
- Effects of the friction coefficient of a barrel on grinding performances in planetary ball mill
- 저자
- Kim, B.C.; Jang, G.H.
- 발행일
- 2017-00
- 유형
- Conference Paper
- 저널명
- ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017