Abstract
The objective of this paper is to analyze the belt punching process with the use of a single cutting edge and discuss the influence of geometrical features of the piercing punch on the perforation force. Two basic shapes of the piercing punch with a single cutting edge were tested: tools with the blade pointing inside or pointing outside. The analytical models of the stress distribution in the shearing cross sections were derived for both punches. The presented model, along with the series of empirical tests and Coupled Eulerian-Lagrangian simulation, was used for finding the effective geometry of the piercing punch with a single cutting edge for the belt perforation. The geometrical parameters taken into consideration for the tool optimization were the following: angle of the blade, thickness of the wall and diameter of the piercing punch cutting edge. The obtained results show that changing these parameters has a significant influence on the perforation force necessary to execute the machining process and affects the quality of the holes in the perforated belts. The most important geometrical features of the hollow sharpened punch are the angle and the direction of the blade, which change the force distribution and, as a result, the mechanics of the process.
Highlights
A Coupled Eulerian-Lagrangian Simulation and ToolDominik Wojtkowiak *, Krzysztof Talaśka, Dominik Wilczyński, Jan Górecki and Krzysztof Wałęsa
Compared with the other method, punching with a cutting edge eliminates the need to align the punch and the die. This is significant, since single cutting edge eliminates the need to align the punch and the die. This is significant, maintaining a very small punch-die clearance, which is required for the polymer multilayer since maintaining a very small punch-die clearance, which is required for the polymer composite belts, generates a lot of technical issues for designers of punching machines
In order to determine the influence of the angle of the blade β and the diameter of the piercing punch cutting edgethe d for both types of punches and pointing inside (PI)),βaand set of tools made of the In In order to cutting determine influence of the angle of(PO
Summary
Dominik Wojtkowiak *, Krzysztof Talaśka, Dominik Wilczyński, Jan Górecki and Krzysztof Wałęsa. Dominik Wojtkowiak * , Krzysztof Talaśka, Dominik Wilczyński , Jan Górecki and Krzysztof Wałesa.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call