Моделювання і дослідження напружено-деформованого стану та оптимізація геометричних параметрів вирубного пуансона

• Date: 2026
• Main Authors: Велика, Оксана, Бойко, Михайло, Великий, Нестор-Тарас
• Format: Article
• Language: English
• Published: Kamianets-Podilskyi National Ivan Ohiienko University 2026
• Online Access: https://mcm-tech.kpnu.edu.ua/article/view/354574
• Journal Title: Mathematical and computer modelling. Series: Technical sciences

Punch is one of the main components of the stamp. During use, punches are exposed to high force loads, so they are worn faster. It is necessary to optimize the geometrical parameters of the punch to localize the critical areas where deformation and destruction occur during the stamping process, thereby increasing the durability of the entire stamp design. The peculiarities of the stress-strain state of the punch for the cutting of oval openings in products from sheet material have been investigated. It is shown that ensuring reliability, durability and faultless operation of the punch directly depends on the level of the stress-strain state, which is constantly changing in the course of prolonged operation. Particular attention is given to the finite element analysis of the stress-strain state of the punch structure, which failed during changing operational conditions. A 3D model of the punch design in the AUTODESK INVENTOR environment was constructed using the finite element method. The parameters were calculated, and the critical areas of the punch were identified. This article describes various stages of punch failure. The optimization of the punch’s geometric parameters is presented, along with a rational choice of punch model that can withstand operational loads, extend its service life, and ensure efficient performance under excessive loading during the process of making oval holes. The effectiveness of the proposed design decisions was verified on a modernized punch model.