Finite Element Analysis of Material Flow in Mechanical Clinching with Extensible Dies
Source abstract
Abstract
An investigation of the material flow during the clinching process with extensible dies is carried out. Clinched joints were produced under different forming loads to evaluate the evolution of the jointsprofile experimentally. Tensile-shear tests were conducted to evaluate the influence of the forming load on mechanical strength of the clinched joint. Since the jointsstrength depends on the jointsprofile, which in turn depends on the punch-die cavity volume, an analysis of the forces acting on the extensible dies was carried out. A finite element model was developed and validated by comparing the predicted and measured material flow and quality criteria (e.g., neck thickness and undercut). Therefore, the FE model was utilized to analyze the evolution of contact forces acting on the die sectors during the joining process. Furthermore, the main causes of the asymmetry in the cross section of such joints have been studied. It turned out that the axial asymmetry due to material flow within the gap between consecutive die sectors increases with the punch force and the sheet thickness.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Forming Simulation Techniques · Metallurgy and Material Forming · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. K. Mori, Y. Abe, and T. Kato, Mechanism of Superiority of Fatigue Strength for Aluminium Alloy Sheets Joined by Mechanical Clinching and Self-Pierce Riveting, J. Mater. Process. Technol., 2012, 212(9), p 1811–198810.1016/j.jmatprotec.2012.04.017 ↗
2. J. Varis, Economics of Clinched Joint Compared to Riveted Joint and Example of Applying Calculations to a Volume Product, J. Mater. Process. Technol., 2006, 172(1), p 130–13810.1016/j.jmatprotec.2005.09.009 ↗
3. J. Varis, Ensuring the Integrity in Clinching Process, J. Mater. Process. Technol., 2006, 174(1–3), p 277–28510.1016/j.jmatprotec.2006.02.001 ↗
4. C.-J. Lee, J.-Y. Kim, S.-K. Lee, D.-C. Ko, and B.-M. Kim, Design of Mechanical Clinching Tools for Joining of Aluminium Alloy Sheets, Mater. Des., 2010, 31(4), p 1854–186110.1016/j.matdes.2009.10.064 ↗
5. C.-J. Lee, J.-Y. Kim, S.-K. Lee, D.-C. Ko, and B.-M. Kim, Parametric Study on Mechanical Clinching Process for Joining Aluminum Alloy and High-Strength Steel Sheets, J. Mech. Sci. Technol., 2010, 24, p 123–12610.1007/s12206-009-1118-5 ↗
6. M. Oudjene, L. Benayed, A. Delameziere, and J. Batoz, Shape Optimization of Clinching Tools Using the Response Surface Methodology with Moving Least-Square Approximation, J. Mater. Process. Technol., 2009, 209(1), p 289–29610.1016/j.jmatprotec.2008.02.030 ↗
7. Y. Abe, K. Mori, and T. Kato, Joining of High Strength Steel and Aluminium Alloy Sheets by Mechanical Clinching with Dies for Control of Metal Flow, J. Mater. Process. Technol., 2012, 212(4), p 884–88910.1016/j.jmatprotec.2011.11.015 ↗
8. R. Neugebauer, C. Kraus, and S. Dietrich, Advances in Mechanical Joining of Magnesium, CIRP Ann. Manuf. Technol., 2008, 57(1), p 283–28610.1016/j.cirp.2008.03.025 ↗
9. M. Grujicic, V. Sellappan, G. Arakere, N. Seyr, A. Obieglo, M. Erdmann, and J. Holzleitner, The Potential of a Clinch-Lock Polymer Metal Hybrid Technology for Use in Load-Bearing Automotive Components, J. Mater. Eng. Perform., 2008, 18(7), p 893–90210.1007/s11665-008-9325-2 ↗
10. J.P. Varis, The Suitability of Clinching as a Joining Method for High-Strength Structural Steel, J. Mater. Process. Technol., 2003, 132, p 242–24910.1016/S0924-0136(02)00933-0 ↗
11. H.-K. Kim, Fatigue Strength Evaluation of the Clinched Lap Joints of a Cold Rolled Mild Steel Sheet, J. Mater. Eng. Perform., 2012. doi: 10.1007/s11665-012-0232-110.1007/s11665-012-0232-1 ↗
12. S. Coppieters, P.Lava, R.V. Hecke, S. Cooreman, H. Sol, P.V. Houtte, and D. Debruyne, Numerical and Experimental Study of the Multi-Axial Quasi-Static Strength of Clinched Connections. Int. J. Mater. Form., 2012. doi: 10.1007/s12289-012-1097-410.1007/s12289-012-1097-4 ↗
13. S. Coppieters, P. Lava, S. Baes, H. Sol, P. Van Houtte, and D. Debruyne, Analytical Method to Predict the Pull-Out Strength of Clinched Connections, Thin-Walled Struct., 2012, 52, p 42–5210.1016/j.tws.2011.12.002 ↗
14. T.K. Pal and K. Bhowmick, Resistance Spot Welding Characteristics and High Cycle Fatigue Behavior of DP 780 Steel Sheet, J. Mater. Eng. Perform., 2011, 21(2), p 280–28510.1007/s11665-011-9850-2 ↗
15. J. Mucha, The Analysis of Lock Forming Mechanism in the Clinching Joint, Mater. Des., 2011, 32(10), p 4943–495410.1016/j.matdes.2011.05.045 ↗
16. S. Coppieters, S. Cooreman, P. Lava, H. Sol, P.V. Houtte, and D. Debruyne, Reproducing the Experimental Pull-Out and Shear Strength of Clinched Sheet Metal Connections Using FEA, Int. J. Mater. Form., 2010, 4(4), p 429–44010.1007/s12289-010-1023-6 ↗
17. F. Lambiase, Influence of Process Parameters in Mechanical Clinching with Extensible Dies, Int. J. Adv. Manuf. Technol., 2012. doi: 10.1007/s00170-012-4486-410.1007/s00170-012-4486-4 ↗
18. W.F. Hosford and R.M. Caddell, Metal Forming: Mechanics and Metallurgy, 3rd ed., Cambridge University Press, New York, 200710.1017/CBO9780511811111 ↗
19. V. Hamel, J.M. Roelandt, J.N. Gacel, and F. Schmit, Finite Element Modeling of Clinch Forming with Automatic Remeshing, Comput. Struct., 2000, 77, p 185–20010.1016/S0045-7949(99)00207-2 ↗