Effect of die shape on the temperature and stresses distribution in the compound (forward-backward)‎ extrusion process

الملخص EN

In this research the effect of the die geometry in the compound extrusion (forward – backward) process on the distribution of temperature and effective stresses is investigated; Effect of the geometrical shape of extrusion process on the power required for the forming process was also investigated.

The flat surface for the punch is chosen and two types of die shape (flat and arc) are studied.

The analysis of temperature and stresses distribution in the die and billet is studied using finite element method via ANSYS software.

The contact region was taken into consideration.

From the results, it was noted that there a tiny changes in the pattern of temperature distribution and also a huge changes in the equivalent stress levels due to the changing in die geometry.

In the backward extrusion process, a significant effect on the stress levels was also noticed due to changing in die geometry.

At last, the results show that the best results of was achieved at arc die geometry .