一种三叉轴闭塞挤压力的计算方法
Calculation Method of Closing Die Extrusion Force of Trigeminal-axle
郭坤龙1 , 辛选荣2, 刘 汀1,2, 刘新成2
点击：3169次 下载：0次
作者单位：1. 河南科技大学 材料科学与工程学院 河南 洛阳 471003；2. 洛阳秦汉冷锻有限公司，河南 洛阳 471003
中文关键字：闭塞挤压； 径向挤压； 三叉轴； 计算方法； 数值模拟
英文关键字：closing-die; radial extrusion; trigeminal-axle; calculation method; numerical simulation
中文摘要：在单动压力机上可以通过专用的模架实现闭塞挤压，这种挤压方式与普通的正挤压或反挤压不同，属于径向挤压，这种挤压方式的挤压力计算方法目前尚未见报道。通过分析三叉轴冷挤压成形过程，提出了一种闭塞挤压力的计算方法，并通过DEFORM-3D数值模拟结果进行比较，验证了该计算方法的科学性，并提出了一定的修正办法，减小了计算误差。
英文摘要：The technology of closing die extrusion attributes to radial extrusion, which is different from normal direct extrusion or backward extrusion, could be realized by the dedicated formwork in ordinary single-acting hydraulic press. The calculation method of closing-die extrusion force has never been seen in any reports. Taking cold extrusion trigeminal-axle as an example, a new calculation method of closing-die extrusion force was proposed. The comparison between the results of the new method and the numerical simulation results of Deform-3D inspects verifies the scientificity of the new method. On the basis of the comparison, the amendment is put forward to reduce the errors further.