Directional Thickness Alteration of a Thin-Walled Ring Blank Using Flanging and Forming for the Purpose of Receiving Conical Part

Abstract:

In this article the flanging method of thin-walled ring blanks using the elastic punch and rigid die scheme is investigated. Presence of a cylindrical portion near the larger edge and a flat area at the side of the blank hole is mandatory. Such conditions allow producing conical parts with minimal thickness variation by altering height of the cylindrical portion. Conducted experimental studies showed that the minimal thickness variation values are not exceeding 16% for different materials and relative thicknesses less than 0,01.

• Periodical: Key Engineering Materials (Volume 684)
• Pages: 253-262
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.684.253
• Online since: February 2016
• Authors: E.G. Demyanenko*, I.P. Popov
• Keywords: Conical Part, Flanging, Forming, Method, Ring Blank, Thickness

References

[1] I.N. Vladimirov, M.P. Pietryga, S Reese, On the influence of kinematic hardening on plastic anisotropy in the context of finite strain plasticity, From the issue entitled Material models for sheet metal forming, International Journal of Material Forming. Vol. 4. 2 (2011).

DOI: 10.1007/s12289-011-1038-7

[2] A. Baltov, A. Savchuk, A Rule of Anisotropic Hardening, Acta Mechanica. Vol. 1. 2 (1965) 81 - 92.

DOI: 10.1007/bf01174305

[3] W. Oiszak, W Urbanovski, The Generalised Distortion Energy in the Theory of Anisotropic Bodies, Bull. Acad. Polon. Sci. Vol. 5. 1 (1957) 29 - 45.

[4] G. Rousselier, F. Barlat, J.W. Yoon, A novel approach for modeling of anisotropic hardening and non proportional loading paths, application to finite element analysis of deep drawing, From the issue entitled Proceedings of the 12th ESAFORM Conference on Material Forming, International Journal of Material Forming. 1 (2009).

DOI: 10.1007/s12289-009-0423-y

[5] J.W. Yoon, R.E. Dick, F. Barlat, Analytical Approach to Predict Anisotropic Material Properties from Cup Drawings, From the issue entitled Proceedings of the 11th ESAFORM Conference on Material Forming,; International Journal of Material Forming. Vol. 1. 1 (2008).

DOI: 10.1007/s12289-008-0344-1

[6] F.V. Grechnikov, The deformation of anisotropic materials, Mashinostroenie, Moscow, (1998).

[7] Y.M. Aryshensky, The theory of sheet metal forming of anisotropic materials, Saratov University Publishing, (1973).

[8] Y.M. Aryshensky, F.V. Grechnikov, V.Y. Aryshensky, Achieving rational anisotropy in sheets, Metallurgy, Moscow, (1987).

[9] E.A. Popov, V.G. Kovalev, I.N. Shubin, Technology and automation of sheet metal forming, BMSTU, Moscow, (2000).

[10] E.A. Popov, Basics of sheet metal forming theory, Mashinostroenie, Moscow, (1977).

[11] M.V. Storozhev, E.A. Popov, Theory of pressure working of metals, Mashinostroenie, Moscow, (1971).

[12] A.M. Dmitriev, A.L. Vorontsov, Approximation of hardening curves of metals, Forging and Stamping Production. Material Working by Pressure 1 (2004) 23-26.

[13] A.M. Dmitriev, A.L. Vorontsov, The technology of forging and die stamping. Part 1. Extrusion forming, Vysshaya Shkola, Moscow, (2002).

[14] Z. Marciniak, K. Kuczyński. Limit strains in the processes of stretchforming sheet metal, International Journal of Mechanical Sciences. Vol. 9. 9 (1967) 609–620.

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

[15] Y. Yamada, M. Koide. Analysis of the Bore-Expanding Test by the Incremental Theory of Plasticity, Int. J. Mech. Sci. Vol. 10 (1968) 1 - 14.

[16] E.G. Demyanenko, I.P. Popov, A.G. Shlyapugin, The study of the process of forming integral pressed parts according to the flanging-forming scheme, Vestnik SSAU 1 (2006) 138-145.

[17] I.P. Popov, V.D. Maslov, Directional change of thickness of the workpiece in sheet metal forming operations, Forging and Stamping Production. Material Working by Pressure 6 (1999) 19–21.