Developing a Knowledge Base about the Technological Forces within the Asymmetric Incremental Forming Process

Abstract:

Asymmetric single point incremental forming (ASPIF) has been recognized as a solution with potential in manufacturing small batches or single sheet metal parts. The approach presented in this paper presents the development of a knowledge base regarding the values of the technological force within the ASPIF process and the influence of some technological parameters such as feed, speed of the punch, thickness of the part and step, upon them. The method is based on the use of the information provided by the CNC machine sensors. Relationships between the torques developed by the drive motors on each axes and the technological forces will be set in order to refine the raw information displayed on the machine to a usable form. Finally, using an adaptive neuro-fuzzy inference system the dependence between the value of the technological force and the other parameters has been extracted.

• Periodical: Key Engineering Materials (Volumes 651-653)
• Pages: 1115-1121
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.651-653.1115
• Online since: July 2015
• Authors: Melania Tera*, Radu Eugen Breaz, Octavian Bologa, Sever Gabriel Racz
• Keywords: CNC Milling Centre, Incremental Forming Process, Neuro-Fuzzy Systems, Technological Forces

References

[1] J. Jeswiet, F. Micari, G. Hirt, et al., Asymmetric Single Point Incremental Forming of Sheet Metal, Annals of CIRP, 54(1) (2005), 623-650.

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

[3] F. Micari, G. Ambrogio, L. Filice, Shape and dimensional accuracy in single point incremental forming: State of the art and future trends, Journal of Materials Processing Technology, 191 (1-3) (2007), 390-395.

DOI: 10.1016/j.jmatprotec.2007.03.066

[3] A. Fiorentino, A. Attanasio, R. Marzi and E. Ceretti, On forces, formability and geometrical error in metal incremental sheet forming, Int. J. Materials and Product Technology, Vol. 40, Nos. 3/4, (2011), 277-295.

DOI: 10.1504/ijmpt.2011.039936

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

DOI: 10.1016/j.jmatprotec.2004.03.024

[5] A. Attanasio, E. Ceretti, A. Fiorentino, L. Mazzoni and C. Giardini, Experimental test to study feasibility and formability in incremental forming process, Key Eng. Mat., Vol. 410–411, (2009), p.391–400.

DOI: 10.4028/www.scientific.net/kem.410-411.391

[6] A. Attanasio, A. Fiorentino, L. Mazzoni, E. Ceretti and C. Giardini, Design of an equipment for force measurement in TPIF process, paper presented at the 9th ICTP, in proceedings, (2008a), p.1783–1788.