[en] Although Incremental Forming offers distinct advantages over traditional forming processes,
such as short lead times and low setup costs, the process still has some drawbacks. Besides the obtainable accuracy, one of the main challenges of the process are the process limits. Many workpiece geometries cannot be manufactured due to the fact that the maximum wall angle that can be formed is limited for a certain sheet material and thickness to a given angle. Different solutions to this approach have been proposed and this paper further investigates one of those solutions, the multi step approach for single point incremental forming. Experiments were performed and compared with simulations to better understand the phenomena underlying the improved process performance.
Disciplines :
Materials science & engineering
Author, co-author :
Verbert, J.
Belkassem, B.
Henrard, Christophe ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F
Habraken, Anne ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Gu, J.
Sol, H.
Duflou, J. R.
Language :
English
Title :
Multi-Step toolpath approach to overcome forming limitations in single point incremental forming
Publication date :
2008
Event name :
11th International ESAFORM Conference on Material Forming
Event organizer :
LaMCoS (CNRS UMR 5259 - Laboratoire de mécanique des Contacts et des Structures) of INSA-Lyon
Event place :
Lyon, France
Event date :
23-25 avril 2008
Audience :
International
Main work title :
Proceedings of the 11th International ESAFORM Conference on Material Forming
Jeswiet, J., Micari, F., Hirt, G., Bramley, A., Duflou, J.R., Allwood, J., Asymmetric single pointincremental forming of sheet metal (2005) CIRP Annals -Manufacturing Technology, 54 (2), pp. 623-649
Duflou, J.R., Lauwers, B., Verbert, J., Tunckol, Y., de Baerdemaeker, H., Achievable Accuracy in Single Point Incremental Forming: Case Studie (2005) Proc. of the 8th Esaform Conf., 2, pp. 675-678
Ham, M., Jeswiet, J., Forming Limit Curves in Single Point Incremental Forming, CIRP Annals-Manufacturing (2007) Technology, 56 (1), pp. 277-280
Matsubara, S., A computer numerically controlled dieless incremental forming of a sheet metal (2001) J. Of Engineering Manufacture., 215 (7), pp. 959-966
Young, D., Jeswiet, J., Wall thickness variations in single-point incremental forming (2004) J. Of Engineering Manufacture, 18 (11), pp. 1453-1459
Kim, T.J., Yang, D.Y., Improvement of formability for the incremental sheet metal forming process (2001) Int. J. Of Mech. Sciences, 42, pp. 1271-1286
Hirt, G., Ames, J., Bambach, M., Kopp, R., Forming strategies and Process Modelling for CNC Incremental Sheet Forming (2003) CIRP Annals -Manufacturing Technology, V53 (1), pp. 203-206
Cescotto, S., Grober, H., Calibration and Application of an Elastic-Visco-Plastic Constitutive Equation for Steels in Hot-Rolling conditions (1985) Engineering Computations, 2, pp. 101-106
Jetteur, P., Cescotto, S., A Mixed Finite Element for the Analysis of Large Inelastic Strains (1991) Int. J. For Numerical Methods in Eng., 31, pp. 229-239
He, S., van Bael, A., van Houtte, P., Szekeres, A., Duflou, J.R., Henrard, C., Habraken, A.M., Finite Element Modeling of Incremental Forming of Aluminum Sheets (2005) Adv. Mat. Research, 6-8, pp. 525-532