Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Analysis of methods for calculating the internal radius of air-bending process and his influence on punch displacement
Submission Author:
Pedro Kucarz , PR
Co-Authors:
Pedro Kucarz, Milton Polli, Walter Luís Mikos, Paulo Victor Prestes Marcondes
Presenter: Pedro Kucarz
doi://10.26678/ABCM.COBEM2023.COB2023-0258
Abstract
The internal curvature of sheets generated during air bending, using punch and die, has been simplified to the geometry of a semicircle. However, this simplification introduces errors in the calculations of punch penetration on the sheet and in the length of the raw material during sheet flattening. In this work, the verification of the curvature of the bent sheet was conducted by using test specimens bent in dies, and their profiles was measured. Results indicate that the curvature geometry is not similar to that of a semicircle, but rather resembles a parabola.
Keywords
Air bends, Inner radius, Punch displacement, Press brake
