Investigation of Precision Forging Process of Spur Gears: Numerical Analysis and Experiments

Article Preview

Abstract:

In this study, the precision forging process of spur gears has been investigated by means of numerical analysis. The effect of some parameters such as teeth number and module on the forming force and specific pressure were presented. The simulation works were performed rigid-plastic finite element method using DEFORM 3D software. In order to validate the estimated numerical results, they were compared with those obtained experimentally during precision forging of spur gear using lead as a model material. Results showed that the optimum number of gear teeth is between 10 to 20, that is because of being the specific pressure in its minimum value. Also the results obtained from analyzing the effective strain distribution showed that the maximum strain is located on the root area of the teeth. The work presented in this paper might be used for basic data in the design of the precision forging process.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 341-342)

Pages:

265-270

Citation:

Online since:

September 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] ASM METALS HANDBOOK, Volume 14, Forming and Forging, ASM international, 1996, fourth printing.

Google Scholar

[2] Altan, T., N. Gracious, S. Gangshu, Cold and hot forging: fundamentals and applications, ASM international, (2005).

Google Scholar

[3] N.R. Chitkara, M.A. Butta, Forging and heading of hollow spur gear forms: an analysis and some experiments, International Journal of Mechanical sciences 41, 1999, pp.1159-1189.

DOI: 10.1016/s0020-7403(98)00092-7

Google Scholar

[4] J. Cai, T.A. Dean, Z.M. Hu, Alternative die designes in net-shape forging of gears, Journal of Material Processing Technology 150, 2004, pp.48-55.

DOI: 10.1016/j.jmatprotec.2004.01.019

Google Scholar

[5] J.C. Choi, Y. Choi, A study on the forging of external spur gears: upper-bound analysis and experiments, International Journal of Machine Tools & Manufacture 38, 1998, pp.1193-1208.

DOI: 10.1016/s0890-6955(98)00009-1

Google Scholar

[6] J. Choi, H.Y. Cho, C.Y. Jo, An upper-bound analysis for the forging of spur gears, Journal of Material Processing Technology 104, 2000, pp.67-73.

DOI: 10.1016/s0924-0136(00)00524-0

Google Scholar

[7] M.L. Aves, J.M.C. Rodrigues, P.A.F. Martins, cold forging of gears: experimental and theoretical investigation, Finite Element in Analysis and Design 37, 2001, pp.549-558.

DOI: 10.1016/s0168-874x(00)00063-9

Google Scholar