2026-04-20T23:53:57Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/54772024-03-05T11:40:58Zcom_20.500.11984_473col_20.500.11984_478

00925njm 22002777a 4500 dc Abbasi, Farshad author Trinidad Naranjo, Javier author Otegi, Nagore author Sáenz de Argandoña, Eneko author GALDOS, Lander author 2021 Today’s stamping simulations are realized by ignoring the elastic deformation of the press and tooling system through the assumption of a rigid behavior and a perfect press stroke. However, in reality, the press and tool components deform elastically and are one of the major error sources for the final adjustment and blue-spotting of the dies. In order to tackle this issue, a new approach is proposed in this study that substitutes the press stiffness by means of a substitutive model composed of cost-effective shell and beam elements. The substitute model was calibrated using full-scale measurements, in which a 20,000 kN trial press was experimentally characterized by measuring its deformation under static loads. To examine the robustness of the substitute model, a medium-size tool and a large-size tool were simulated together with the substitutive model. To this end, a B-pillar tool was re-machined based on the substitute-model results and a new cambering procedure was proposed and validated throughout the blue-painting procedure. The newly developed substitute model was able to replicate the global stiffness of the press with a high accuracy and affordable calculation time. The implementation of the findings can aid toolmakers in eliminating most of the reworking and home-line trials. 1996-1944 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=167119 https://hdl.handle.net/20.500.11984/5477 tool cambering press-deflection-measuring system substitute model sheet-metal forming (SMF) try-out and production Substitutive Press-Bolster and Press-Ram Models for the Virtual Estimation of Stamping-Tool Cambering