Eventos Anais de eventos
COBEF 2017
Congresso Brasileiro de Engenharia de Fabricação
Clinched Joints Quality Analysis via Microscopy and Comparison with Forming Simulations
Submission Author:
Gabriel Zapata , SP
Co-Authors:
Rafael Sottili Chaves, Alexandre Luis Marangoni, Marcelo Quartiermeister
Presenter: Gabriel Zapata
doi://10.26678/ABCM.COBEF2017.COF2017-1171
Abstract
The mechanical union process of clinched joints has been widespread in the last decade as an alternative to spot welding and fasteners in general. Joints quality and strength are dependent of material properties, dimensional characteristics and manufacturing parameters. It is worth mentioning the importance of sheet metal forming simulations as a method to avoid trials and errors in manufacturing processes. The objective of this study was to verify the correlation between a real clinched joint with the finite element simulation results. Design of experiments (DOE) methodology was used to conduct the investigations regarding influence of the material properties, sheet thickness and process factors for a real clinched joint. The final dimension, cracks presence and poor fill of undercut’s geometry were considered as responses. A computational DOE was carried out including some noise factors, such as friction coefficient and die clearance. The real joint final dimension, measured via optical microscopy, was compared with the simulated results.
Keywords
Press-Joining, Finite Element Method, Optical Microscopy Analysis
