非对称型材挤压模具结构研究

The study on the structure of extrusion die for non symmetry sections

为减小非对称型材挤压的弯扭畸变 ,在试验研究的基础上 ,建立了局部挤压比、挤压带系数的概念 ,挤压筒中心与挤压模孔型中心相对位置的计算式。

To decrease bending and twist deformation of non symmetry extruded sections, a new conception of local extrusion ratio and die band ratio has been set up, and also the formulas for the place of die hole on the basis of simulating test. The experiments show that the formulas set up in this paper can lower the deformation of non symmtry extruded sections efficiently.