| Popis: |
a numerical model research of fine-blanking has been built up. The fine-blanking process of parts with clearance 0.1%S, 0.7%S, and 1.3%S. (S stands for the thickness of the material) respectively, thickness of plate 2.9mm and diameter 16mm of steel 45, has been simulated. Through simulation, the study gets the material distribution situation of mean-stress fields in the progress of fine-blanking, and the author analyzes the relation between mean-stress fields and the crack of shearing zone. Through analysis the author concluded that the section quality grows with decrease of blanking clearance. |
