Strain Analysis of Parts Produced by Multi-Pass Conventional Metal Spinning

Abstract:

Sheet metal spinning is one of the forming processes based on gradual shaping of metal blank into an axisymetric part by a roller according to a mandrel. Very significant feature of spinning is ability to produce components with high mechanical properties and high quality of surface layers. The paper brings the results of major true strains analysis of mild steel parts produced by CNC multi-pass conventional metal spinning. The influence of the spindle speed, feed rate, workpiece geometry and planar anisotropy of the blank on the strain distribution of formed part is studied by method of grain size measurement. The design of experiment using the Taguchi approach and analysis of variance (ANOVA) is applied to find optimal process parameters.

• Periodical: Key Engineering Materials (Volumes 622-623)
• Pages: 427-432
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.622-623.427
• Online since: September 2014
• Authors: Peter Šugár*, Jana Šugárová, Ján Petrovič
• Keywords: ANOVA, Metal Spinning, Strain, Taguchi Method

References

[1] O. Music, J. M. Allwood, K. A. Kawai. A review of the mechanics of metal spinning. In Journal of Materials Processing Technology. Vol. 210, 2010, Iss. 1, p.3 – 23.

DOI: 10.1016/j.jmatprotec.2009.08.021

[2] W. C. Emmens, G. Sebastiani, A. H. van den Boogaard. The technology of Incremental Sheet Forming—A brief review of the history. Journal of Materials Processing Technology. Vol. 210, 2010, p.981 – 997.

DOI: 10.1016/j.jmatprotec.2010.02.014

[3] L. Wang, H. Long. A study of effects of roller path profiles on tool forces and part wall thickness variation in conventional metal spinning. Journal of Materials Processing Technology, Vol. 211, 2011, p.2140 – 2151.

DOI: 10.1016/j.jmatprotec.2011.07.013

[4] C. C. Wong, T. A. Dean, J. Lin. A review of spinning, shear forming and flow forming processes. Int. J. of Machine Tool & Manufacture, Vol. 43, 2003, No. 14, p.1419 – 1435.

DOI: 10.1016/s0890-6955(03)00172-x

[5] E. Quigley, J. Monaghan. Metal forming: an analysis of spinning processes. Journal of Materials Processing Technology, Vol. 103, 2000, No. 1, p.114 – 119.

DOI: 10.1016/s0924-0136(00)00394-0

[6] L. Wang, H. et al. Effects of roller feed ratio on wrinkling failure in conventional spinning of a cylindrical cup. Proceedings of the Institution of Mechanical Engineers, Part B, Journal of Engineering Manufacture. Vol. 225, 2011, No. 11, pp . 1991 – (2006).

DOI: 10.1177/0954405410396024

[7] L. Wang. Analysis of Material Deformation and Wrinkling Failure in Conventional Metal Spinning Process. Durham theses. Durham University, 2012. Available at Durham E-Theses Online: http: /etheses. dur. ac. uk/3537/ [Accessed October 2012].

[8] P. Šugár, J. Šugárová, P. Zemko. Strain and strain-hardening analysis of formed parts produced by multi-pass metal spinning. In: Tehnicki Vjesnik - Technical Gazette. Vol. 19, 2012, No. 1, p.111 – 114.

DOI: 10.4028/www.scientific.net/kem.622-623.427

[9] J. Šugárová, P. Šugár, P. Zemko. Metal spun and deep drawn part´s surface layers properties evaluation. In: Journal of Production Engineering. Vol. 14, 2011, No. 1, p.35 – 38.

[10] M. Hayama, T. Murota. On the study of metal spinning. Bulletin of the Faculty of Engineering, Yokohama National University, 12, 1963, p.53 – 88.

[11] Q. X. Xiaet al. A study of the one – path deep drawing spinning of cups. Journal of Materials Processing Technology, 159 (3), 2005, p.397 – 400.

DOI: 10.1016/j.jmatprotec.2004.05.027

[12] EN ISO 643. Steels - Micrographic determination of the apparent grain size. (2003).

[13] R. K. Roy. Design of Experiments Using the Taguchi Approach. 16 steps to product and process improvements, John Wiley & Sons, New-York, (2001).