Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Numerical simulation and analysis of the tools radius and different blank holder forces influences on springback
Submission Author:
Paulo Sergio Olivio Filho , PR , Brazil
Co-Authors:
Paulo Sergio Olivio Filho, ADRIANO OLIVEIRA, Émillyn Ferreira Trevisani Olivio
Presenter: Émillyn Ferreira Trevisani Olivio
doi://10.26678/ABCM.COBEM2017.COB17-0929
Abstract
Sheet forming is the process of mechanical transformation that consists in assigning to a given material of characteristics and defined thickness, a final format given by a matrix. Among all possible processes, the deep drawing is an option commonly used in the automotive industry. For a long time, the concern generated by this process revolved around the elimination of necking and cracks during the process. Controlled these effects, another challenge arises interfering in the dimensional quality: the springback. This problem causes dimensional inconstancy and geometric distortion, which can cause certain problems in the assembly, or else make it impossible to assemble the shaped components. With technological advances, increasingly accurate simulation software greatly helps to avoid wasting the time and costs involved in such surveys, which, without this assistance, should be done in a practical way with trial and error. The simulation can predict changes to decrease or eliminate the springback. In this work the influence of the blank holder force and the tools radius in the deep drawing was evaluated by numerical simulation, analyzing the springback for the steel DC 06 and the TRIP 800, using ABAQUS® software 6.12-2. It was verified during the simulation that in the larger tools radius and in smaller blank holder forces the springback presented more significant, whereas in smaller tools radius and larger blank holder forces the springback was less significant for both steels.
Keywords
Numerical simulation, Metal forming, Springback
