Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Forming Limit Analyses of 590 MPa High Strength Steel Sheet Using Differential Work Hardening Model
p.353
Formability Enhancement of Al-Mg Sheet by Using Hydro-Mechanical Forming
p.359
Analysis into Differences between the Buckling in Single-Point and Two-Point Incremental Sheet Forming of Components for Self-Supporting Sheet Metal Structures
p.367
Comparative Study for Springback Prediction on Single Point Incremental Forming Process
p.375
Development of Tool Path Correction Algorithm in Incremental Sheet Forming
p.382
Effect of Difference of Tool Rotation Direction on Forming Limit in Friction Stir Incremental Forming
p.390
Experimental Study on the Incremental Forming of Coated Aluminum Alloy Sheets
p.398
Impact of High Speed Incremental Forming on Material Properties of AA6082 Sheets
p.406
Innovative Machine Design for Incremental Profile Forming
p.413

Development of Tool Path Correction Algorithm in Incremental Sheet Forming

Article Preview

Abstract:

The problem of obtaining sound parts by Incremental Sheet Forming is still a relevant issue, despite the numerous efforts spent in improving the toolpath planning of the deforming punch in order to compensate for the dimensional and geometrical part errors related to springback and punch movement. Usually, the toolpath generation strategy takes into account the variation of the toolpath itself for obtaining the desired final part with reduced geometrical errors. In the present paper, a correction algorithm is used to iteratively correct the part geometry on the basis of the measured parts and on the calculation of the error defined as the difference between the actual and the nominal part geometries. In practice, the part geometry is used to generate a first trial toolpath, and the form error distribution of the resulting part is used for modifying the nominal part geometry and, then, generating a new, improved toolpath. This procedure gets iterated until the error distribution becomes less than a specified value, corresponding to the desired part tolerance. The correction algorithm was implemented in software and used with the results of FEM simulations. In particular, with few iterations it was possible to reduce the geometrical error to less than 0.4 mm in the Incremental Sheet Forming process of an Al asymmetric part, with a resulting accuracy good enough for both prototyping and production processes.

You might also be interested in these eBooks
Metal Forming 2014 View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 622-623)

Pages:

382-389

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.622-623.382

Citation:

Cite this paper

Online since:

September 2014

Authors:

Antonio Fiorentino*, G.C. Feriti, Elisabetta Ceretti, C . Giardini, C.M.G. Bort, Paolo Bosetti

Keywords:

Correction Algorithm, Incremental Sheet Forming, Optical Measurement, Tool Path Compensation

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] J. Jeswiet, F. Micari, G. Hirt, A. Bramley, J. Duflou, J. Allwood, Asymmetric single point incremental forming of sheet metal, Annals of the CIRP 54/2 (2005) 623–649.

DOI: 10.1016/s0007-8506(07)60021-3

Google Scholar

[2] A. Fiorentino, R. Marzi, E. Ceretti, Preliminary results on Ti Incremental Sheet Forming (ISF) of biomedical devices: biocompatibility, surface finishing and treatment, Int. J. of Mechatronics and Manuf. Systems 5/1 (2012) 36-45.

DOI: 10.1504/ijmms.2012.046146

Google Scholar

[3] M. Mitsuishi, J. Cao, P. Bartolo, D. Friedrich, A.J. Shih, K. Rajurkar, N. Sugita, K. Harada, Biomanufacturing, Annals of the CIRP 42/2 (2013) 585-606.

DOI: 10.1016/j.cirp.2013.05.001

Google Scholar

[4] A. Attanasio, E. Ceretti, C. Giardini, Optimization of tool path in two points incremental forming, Journal of Materials Processing Technology 177/1-3 (2006) 409-412.

DOI: 10.1016/j.jmatprotec.2006.04.047

Google Scholar

[5] J.M. Allwood, D.R. Shouler, A.E. Tekkaya, The increased forming limits of incremental sheet forming processes, Key Engineering Materials 344 (2007) 621-628.

DOI: 10.4028/www.scientific.net/kem.344.621

Google Scholar

[6] P.A.F. Martins, N. Bay, M. Skjoedt, M.B. Silva, Theory of single point incremental forming, Annals of the CIRP, 57/1 (2008) 247-252.

DOI: 10.1016/j.cirp.2008.03.047

Google Scholar

[7] G. Hirt, J. Ames, M. Bambach, R. Kopp, Forming strategies and Process Modelling for CNC Incremental Sheet Forming, Annals of the CIRP 53/ 1 (2004) 203-206.

DOI: 10.1016/s0007-8506(07)60679-9

Google Scholar

[8] TB Stoughton, A general forming limit criterion for sheet metal forming, Int J Mech Sci 42 (2000) 1-27.

DOI: 10.1016/s0020-7403(98)00113-1

Google Scholar

[9] Hill R (1952) On discontinuous plastic states, with special reference to localized necking in thin sheets. J Mechanics Physics Solids 1(1): 19-30.

DOI: 10.1016/0022-5096(52)90003-3

Google Scholar

[10] Marciniak Z, Kuczyński K (1967) Limit strains in the processes of stretch-forming sheet metal. Int J Mech Sci 9: 609-612.

DOI: 10.1016/0020-7403(67)90066-5

Google Scholar

[11] A. Petek, K. Kunzman, B. Suhač, Autonomous on-line system for fracture identification at incremental sheet forming. Annals of the CIRP 58 (2009) 283-286.

DOI: 10.1016/j.cirp.2009.03.092

Google Scholar

[12] A. Fiorentino, Force-based failure criterion in incremental sheet forming, Int J Adv Manuf Technol 68 (2013) 557–563.

DOI: 10.1007/s00170-013-4777-4

Google Scholar

[13] J. Duflou, J. Verbert, B. Belkassem, J. Gu, H. Sol, C. Henrard, A.M. Habraken, Process window enhancement for single point incremental forming through multi-step toolpaths, Annals of the CIRP 57 (2008) 253-256.

DOI: 10.1016/j.cirp.2008.03.030

Google Scholar

[14] M. Skjoedt, N. Bay, B. Endelt, G. Ingarao, Multi stage strategies for single point incremental forming of a cup, Int. J. of Material Forming Suppl 1 (2008) 1999-1202.

DOI: 10.1007/s12289-008-0156-3

Google Scholar

[15] A.K. Behera, B. Lauwers, J.R. Duflou, Tool path generation for single point incremental forming using intelligent sequencing and multi-step mesh morphing techniques, Key Engineering Materials 554 (2013) 1408-1418.

DOI: 10.4028/www.scientific.net/kem.554-557.1408

Google Scholar

[16] L. Junchao, S. Junjian, W. Bin, A multipass incremental sheet forming strategy of a car taillight bracket, Int. J. of Adv. Manuf. Technology 69 (2013) 2229-2236.

DOI: 10.1007/s00170-013-5179-3

Google Scholar

[17] Z. Fu, J. Mo, F. Han, P. Gong, Tool path correction algorithm for single-point incremental forming of sheet metal, International Journal of Advanced Manufacturing Technology 64/9-12 (2013) 1239-1248.

DOI: 10.1007/s00170-012-4082-7

Google Scholar

[18] B. Lu, J. Chen, H. Ou, J. Cao, Feature-based tool path generation approach for incremental sheet forming process, J. of Mat. Proc. Technology, 213/7 (2013) 1221-1233.

DOI: 10.1016/j.jmatprotec.2013.01.023

Google Scholar

[19] C. Radu, I. Cristea, E. Herghelegiu, S. Tabacu, Improving the accuracy of parts manufactured by single point incremental forming, Applied Mech. and Materials, 332 (2013) 443-448.

DOI: 10.4028/www.scientific.net/amm.332.443

Google Scholar

[20] R. Bahloul, H. Arfa, H. Belhadjsalah, Application of response surface analysis and genetic algorithm for the optimization of single point incremental forming process, Key Engineering Materials, 554 (2013) 1265-1272.

DOI: 10.4028/www.scientific.net/kem.554-557.1265

Google Scholar

[21] E. Ceretti E., C. Giardini, A. Attanasio, Experimental and simulative results in sheet incremental forming on CNC machines, Journal of Materials Processing Technology 152/2 (2004) 176-184.

DOI: 10.1016/j.jmatprotec.2004.03.024

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved