摘要
采用刚黏塑性有限元理论,在挤压温度为200℃、挤压速度为2 mm/s、背压强度为40 MPa时,对ZK60镁合金棒材进行四道次ECAP过程的数值模拟,观察棒材在四道次ECAP过程中金属流动情况,并分析棒材在四道次ECAP过程中应力场和温度场的分布和变化规律。
The ZK60 magnesium alloy bar was conducted by numerical simulation during the four-pass equal channel angular pressing （ECAP） process through the rigid visco-plastic finite element theory at the temperature of 200℃, the extrusion of 2 mm/s and the back pressure of 40 MPa. Then the metal flow of the bar was observed, the distribution and change of the stress field and temperature field were analyzed in the four-pass ECAP process.
出处
《机械工程师》
2014年第5期85-87,共3页
Mechanical Engineer
基金
黑龙江省教育厅科学研究项目(12521075)
