This study investigated the effect of the grinding media of a ball mill under various conditions on the raw material of copper powder during the milling process with a simulation of the discrete element method. Using the simulation of the three-dimensional motion of the grinding media in the stirred ball mill, we researched the grinding mechanism to calculate the force, kinetic energy, and medium velocity of the grinding media. The grinding behavior of the copper powder was investigated by scanning electron microscopy. We found that the particle size increased with an increasing rotation speed and milling time, and the particle morphology of the copper powder became more of a plate type. Nevertheless, the particle morphology slightly depended on the different grinding media of the ball mill. Moreover, the simulation results showed that rotation speed and ball size increased with the force and energy.

1. 서 론
 2. 실험 방법
 3. 결과 및 고찰
 4. 결 론
 References

• 보르 암갈란(창원대학교 메카트로닉스 융합부품소재 연구센터(ERC), 창원대학교 대학원 금속신소재공학과) | Amgalan Bor
• 오양가(창원대학교 메카트로닉스 융합부품소재 연구센터(ERC), 창원대학교 대학원 금속신소재공학과) | Uyanga Batjargal
• 자갈사이항 바체첵(창원대학교 메카트로닉스 융합부품소재 연구센터(ERC), 창원대학교 대학원 금속신소재공학과) | Battsetseg Jargalsaikhan
• 이재현(창원대학교 메카트로닉스 융합부품소재 연구센터(ERC), 창원대학교 대학원 금속신소재공학과) | Jehyun Lee
• 최희규(창원대학교 대학원 금속신소재공학과, 창원대학교 메카융합학과) | Heekyu Choi Corresponding author