Study on Manufacturing of Internal Gear by Flowforming Process and Investigation of Effective Parameters on Process Force

Document Type : Research Paper

Authors

Department of Mechanical Engineering, University of Birjand, Birjand, Iran

Abstract

Flowforming is a plastic deformation process that is used to produce precise thin-walled tubes. Manufacturing of an internal gear through flowforming process is a new method by which the gear can be manufactured in just one pass. In the present study, the flowforming of internal gear is studied both experimentally and numerically. A simple set up was designed and built to manufacture the internal gear. The plastic behavior of the material was determined through tensile testing, and the friction condition was determined using a friction test. Parameters including profile and teeth height were measured and compared with simulated values. It is shown that there is a good agreement between the results of the simulation and those of the experiment. When the simulation is verified, the design of the experiment method is employed to investigate the influences of roller diameter, feed rate, thickness reduction percentage and attack angle on the process force. According to DOE results, all parameters and interactions are significant and affect the process force except D×T. The process force increases by increasing the roller diameter, thickness reduction percentage and feed rate, but decreases by increasing the attack angle.

Keywords


[1] M. Merklein, J.M. Allwood, B.A. Behrens, A. Brosius, H. Hagenah, K. Kuzman, K. Mori, A. E. Tekkaya, A. Weckenmann, Bulk forming of sheet metal, CIRP Annals, 61(2) (2012) 725-745.
[2] C. C. Wong, T. A. Dean, and J. Lin, A review of spinning, shear forming and flow forming processes, International Journal of Machine Tools and Manufacture, 43(14) (2003)
1419-1435.
[3] H. Nägele, H. Wörner, and M. Hirschvogel, Automotive parts produced by optimizing the process flow forming–machining, Journal of Materials Processing Technology, 98(2) (2000) 171-175.
[4] P. Groche and D. Fritsche, Application and modelling of flow forming manufacturing processes for internally geared wheels, International Journal of Machine Tools and Manufacture, 46(11) (2006) 1261-1265.
[5] S.Y. Jiang, Z.Y. Ren, W. Bin, and G.X. Wu, General issues of FEM in backward ball spinning of thin-walled tubular part with longitudinal inner ribs, Transactions of Nonferrous Metals Society of China, 17(4) (2007) 793-798.
[6] S. Jiang, Z. Ren, K. Xue, and C. Li, Application of BPANN for prediction of backward ball spinning of thin-walled tubular part with longitudinal inner ribs, Journal of materials processing technology, 196(1-3) (2008) 190-196.
[7] S.Y. Jiang, Y.F. Zheng, Z.Y. Ren, and C.F. Li, Multi-pass spinning of thin-walled tubular part with longitudinal inner ribs, Transactions of Nonferrous Metals Society of China, 19(1) (2009) 215-221.
[8] S. Jiang, Z. Ren, C. Li, and K. Xue, Role of ball size in backward ball spinning of thin-walled tubular part with longitudinal inner ribs, Journal of materials processing technology, 209(4) (2009) 2167-2174.
[9] M. Haghshenas, M. Jhaver, R. Klassen, and J. Wood, Plastic strain distribution during splined-mandrel flow forming, Materials & Design, 32(6) (2011) 3629-3636.
[10] M. Haghshenas, J. Wood, and R. Klassen, Investigation of strain-hardening rate on splined mandrel flow forming of 5052 and 6061 aluminum alloys, Materials Science and Engineering: A, 532 (2012) 287-294.
[11] M. Haghshenas, J. Wood, and R. Klassen, Effect of strain-hardening rate on the grain-to-grain variability of local plastic strain in spin-formed fcc metals, Materials Science and Engineering: A, 552 (2012) 376-383.
[12] Q.-X. Xia, L.-Y. Sun, X.-q. Cheng, and B.-Y. Ye, Analysis of the forming defects of the trapezoidal inner-gear spinning, in Industrial Engineering and Engineering Management, 2009. IEEM 2009. IEEE International Conference (2009) 2333-2337.
[13] W. Xu, X. Zhao, D. Shan, J. Li, Q. Deng, X. Cui, Z. Li, Numerical simulation and experimental study on multi-pass stagger spinning of internally toothed gear using plate blank, Journal of Materials Processing Technology, 229 (2016) 450-466.
[14] M. A. Rasouli, A. Taherizadeh, M. Farzin, A. Abdolah, and M. R. Niroomand, Investigating the effects of process parameters on forming forces and defects formation in tube spinning process of AA6061, Modares Mechanical Engineering, 16(12) (2017) 186-194.
[15] M. Movahhedy, M. Gadala, and Y. Altintas, Simulation of the orthogonal metal cutting process using an arbitrary Lagrangian–Eulerian finite-element method, Journal of materials processing technology,103(2) (2000) 267-275.
[16] D. C. Montgomery, Design and analysis of experiments. John wiley & sons, 2017.
[17] C. Wong, T. Dean, and J. Lin, Incremental forming of solid cylindrical components using flow forming principles, Journal of Materials Processing Technology, 153 (2004) 60-66.
[18] Y. Jianguo and M. Makoto, An experimental study on paraxial spinning of one tube end, Journal of Materials Processing Technology, 128(1) (2002) 324-329.