Mesoscopic Simulation Analysis about the Influence of Die Wall Friction on Compression Process of Powder Particles
- 作者：JIAO Ming-huaLI DaSUN LongGU Man
- 会议时间：2014-07-19
- 关键词：Powder Particles ; Mesoscopic Simulation ; Die Wall Friction ; Density Uniformity
- 作者单位：JIAO Ming-hua,LI Da,SUN Long(School of Machinery and Automobile Engineering, Hefei University of Technology, China 230009)GU Man(Department of Mechanical Engineering, Hefei University, China 230601)
- 母体文献：第九届中国国际压铸会议论文集
- 会议名称：第九届中国国际压铸会议
- 会议地点：上海
- 主办单位：中国机械工程学会
- 语种：chi
摘要
The finite element method is applied to mesoscopically simulate the loose particles flowing in the process of compaction.The strain processes and deformation differences of the particles in the typical positions,and the porosities in different areas under various die wall friction coefficients were investigated.The results show that the die wall interface friction causes the diagonal flow of particles from the upper surface edges to the center of compaction,and it has a significant influence on the deformation and compression density uniformity of particles.