Definição de folga entre matriz e punção a ser utilizado na operação de corte por cisalhamento

Abstract

This study focused on the development and evaluation of an experimental tool designed for an in-depth investigation of the shear cutting process of metal sheets. The primary objective was to identify an ideal clearance between punch and die that would allow the cutting of different steel thicknesses (0.5 mm to 1 mm) without the need for die changes, thereby optimizing the production process. The research utilized a multifunctional die in a coil processing line with 304 stainless steel, conducting experiments by varying the radial clearance (5% to 25%).The results demonstrated that a constant radial clearance of 25% provided precise and high-quality cuts for both tested material thicknesses. The cut surface exhibited an adequate finish with minimal burrs. Microscopic analyses confirmed the absence of excessive material deformation and minimal tool wear even after multiple cycles, validating the efficiency of the multifunctional die design.The conclusion of this study is that determining an ideal cutting clearance, which enables the processing of various material thicknesses without the need for die changes, represents a significant advancement for the metalworking industry. This optimization will not only result in reduced setup times, increasing production volume and competitiveness, but also contribute to improved operator safety by minimizing exposure to risks during tool adjustments. In essence, this study demonstrates the potential of cutting clearance optimization as a fundamental pillar for efficiency, quality, and safety in the manufacturing of components by shearing. [resumo fornecido pelo autor]