An Experimental Analysis for Axisymetric Hot Extrusion Through Square Dies Using Visioplasticity Method

변형가시화법을 이용한 열간 축대칭 평금형 압출의 실험적 해석

To investigate the behavior of platic deformation inaxisymmetric hot extrusion through square dies, the physical modelling with the plasticine as a model material is carried out at the room temperature. Some mechanical properties of the model material are determined by compression and ring compression tests. Visioplasticity method using experimetal grid distortion is introduced to anlayze the plastic flow, strain rate and strain distribution.