Manufacturing Technology 2024, 24(4):539-551 | DOI: 10.21062/mft.2024.068
An Investigation into Forming of Gears Using Rotary Forging Process
- 1 Mechanical Engineering Department, Faculty of Engineering, Beni-Suef University, Beni-Suef 62511, Egypt
- 2 Production Technology Department, Faculty of Technology and Education, Beni-Suef University, Beni-Suef 62511, Egypt
- 3 Technical College, Imam Ja’afar Al-Sadiq University, Baghdad, Iraq
- 4 Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena 83521, Egypt
- 5 Mechanical Engineering Department, Faculty of Engineering, Sphinx University, Assiut, Egypt
Gears and toothed parts are significant components in power transmission systems. These parts usu-ally manufactured by traditional methods such as machining by milling or forming by rotary forging. In this study, the forming of solid gears or toothed parts using a forging process that combines rotary forging and ballizing technique. The specimens were placed inside the die with excessive volume to fill the toothed part in the die. The forming tool applies pressure to the specimen while rotating it together with the die by the lathe machine chuck, while the tool advances continuously in the direc-tion of the die. This reduces height of the specimen and increases its diameter, causing metal flow to fill die cavity teeth and form the gear or toothed part required for production. Two sets of experi-ments were performed. In the first set, optimization for the appropriate volume of four different sizes of dies and four forming tools was conducted. While in the second set, the effects of forming process variables on the forming load and tooth filling percentage was studied. The results showed that the best tooth filling ratio happened with specimens size of 1.2 to 1.4 times the volume size of the desired tooth for filling. The results also revealed that the forming speed, die size, and forming tool diameter affect the filling ratio and forming load.
Keywords: Forming of gears, Rotary forging, Externally splined, Ballizing technique, Filling ratio and process parameters
Received: March 25, 2024; Revised: July 10, 2024; Accepted: August 2, 2024; Prepublished online: August 6, 2024; Published: September 1, 2024 Show citation
References
- W. WANG, J. ZHAO, AND R. ZHAI. (2016). A forming technology of spur gear by warm extrusion and the defects control. Journal Manufacturing Process, Vol. 21, pp. 30-38. SME. Print ISSN: 1526-6125 Online ISSN: 2212-4616. https://doi: 10.1016/j.jmapro.2015.10.001.
Go to original source...
- WANG HUAJUN, L. YAMIN, ZHANG YANG, H. JING, T. XUAN. (2011). Forming Load and Metal Flow of Rotary Forging Process for Spiral Bevel Gear. Advances in systems science and applications, Vol. 11, No. 3, pp. 294-300. International Institute for General Systems Studies. ISSN 10786236
- C. KIENER AND M. MERKLEIN. (2020). Research of adapted tool Design in Cold Forging of gears. International Journal of Material Forming, Vol. 13, No. 6, pp. 873-883. Springer Paris. ISSN 19606206, 19606214. https://doi: 10.1007/s12289-019-01508-0.
Go to original source...
- XINGHUI HAN, L. DONG, L. HUA, AND W. ZHUANG. (2016). Microstructure and Texture Evolution in Cold Rotary Forging of Spur Bevel Gears of 20CrMnTi Alloy Steel. Journal of Materials Engineering and Performance. Vol. 25, No. 3, pp. 1182-1190. Springer New York ISSN 10599495, 15441024. https://doi: 10.1007/s11665-016-1929-3.
Go to original source...
- W. HAO ZHUANG AND L. YING DONG. (2016). Effect of key factors on cold orbital forging of a spur bevel gear," Journal of Central South University. Vol. 23, No. 2, pp. 277-285. Springer Science + Business Media. ISSN 20952899, 22275223 doi: 10.1007/s11771-016-3071-7.
Go to original source...
- Y. LIN, T. WU, AND G. WANG. (2021). Simulation and Experimental Study on a New Successive Form-ing Process for Large Modulus Gears. Chinese Journal of Mechanical Engineering (English Edition) Vol. 34, No. 1, Chinese Mechanical Engineering Society. ISSN 10009345, 21928258. doi: 10.1186/s10033-021-00653-5.
Go to original source...
- N. YU BEN, Q. ZHANG, AND D. WEI ZHANG. (2018). Improvement of axial forging process for spline shaft by die design. International Journal of Advanced Manufacturing Technology, Vol. 99, No. 9-12, pp. 2727-2741, Springer London. ISSN 02683768, 14333015. doi: 10.1007/s00170-018-2594-5.
Go to original source...
- D. J. POLITIS, N. J. POLITIS, J. LIN, AND T. A. DEAN. (2018). A review of force reduction methods in precision forging axisymmetric shapes. International Journal of Advanced Manufacturing Technology. , Vol. 97, No. 5-8, pp. 2809-2833. Springer London. ISSN 02683768, 14333015 doi: 10.1007/s00170-018-2151-2.
Go to original source...
- Q. JIN, Z. GU, AND J. HUA. (2018). Perform designing approach in cold orbital forging of flange gear. Advances in Mechanical Engineering. Vol. 10, No. 10, pp. 1-7. SAGE Publications Inc. ISSN 16878132, 16878140. doi: 10.1177/1687814018808620.
Go to original source...
- Duy Dinh Van, Duc Quang Vu, Anh Quan Tran, Trung Kien Le. (2021). Hot and Cold Precision Forging of Straight Bevel Gears in Closed Die: Experimental and Simulated Investigation. International Journal of Engineering Research And Management. Vol. 8, No. 06, pp. 8-11. ISSN: 2349- 2058
- C. HU, K. WANG, AND Q. LIU. (2007). Study on a new technological scheme for cold forging of spur gears. Journal of Materials Processing Technology., Vol. 187-188, No. 193, pp. 600-603. Elsevier B.V. ISSN 09240136, 18734774. doi: 10.1016/j.jmatprotec.2006.11.037.
Go to original source...
- W. FENG, L. HUA, AND X. HAN. (2012). Finite element analysis and simulation for cold precision forging of a helical gear. Journal of Central South University. Vol. 19, No. 12, pp. 3369-3377. Springer Science + Business Media. ISSN 20952899, 22275223. doi: 10.1007/s11771-012-1416-4.
Go to original source...
- L. SHI, C. DONG ZHU, X. LIU, AND Y. ZHANG. (2020). Optimum design of the double roll rotary forging machine frame. Mechanical Sciences. Vol. 11, No. 1, pp. 101-114. Copernicus. eISSN2191-916X. doi: 10.5194/ms-11-101-2020.
Go to original source...
- BERND-ARNO BEHRENS, ANNA CHUGREEVA, JULIAN DIEFENBACH, CHRISTOPH KAHRA, SEBASTIAN HERBST, FLORIAN NÜRNBERGER AND HANS JÜRGEN MAIER. (2020). Microstructural evolution and mechanical properties of hybrid bevel gears manufactured by tailored forming. Metals (Basel)., Vol. 10, No. 10, pp. 1-14. MDPI. ISSN: 2075-4701. doi: 10.3390/met10101365.
Go to original source...
- ANNA CHUGREEVA, M. MILDEBRATH, J. DIEFENBACH, A. BARROI, M. LAMMERS, J. HERMSDORF, T. HASSEL, L. OVERMEYER, B. BEHRENS. (2018). Manufacturing of high-performance Bi-metal bevel gears by combined deposition welding and forging," Metals (Basel)., Vol. 8, No. 11, pp. 1-11. MDPI. ISSN: 2075-4701. doi: 10.3390/met8110898.
Go to original source...
- W. FENG, J. LV, L. HUA, H. LONG, AND F. WANG. (2017). Effect of Relief-hole Diameter on Die Elastic Deformation during Cold Precision Forging of Helical Gears. Procedia Engineering, Vol. 207, pp. 627-632. Elsevier B.V. ISSN 18777058. doi: 10.1016/j.proeng.2017.10.1032.
Go to original source...
- P. WANG AND X. F. DONG. (2016). A New Cold Rotary Forging Technology for Automotive Starter Guiding Cylinder with Internal Helical Involute Spline. MATEC Web of Conferences, Vol. 63, pp. 1-5. EDP Sciences. ISSN 2261236X. doi: 10.1051/matecconf/20166301009.
Go to original source...
- W. ZHUANG, X. HAN, AND L. HUA. (2017). Differences between traditional cold forging and cold orbital forging of a spur bevel gear. Procedia Engineering. Vol. 207, pp. 442-447. Elsevier B.V. ISSN 18777058. doi: 10.1016/j.proeng.2017.10.802.
Go to original source...
- DREHER SILVEIRA, FABRÍCIO & SCHAEFFER, LIRIO. (2018). Cold forging tool for gear accuracy grade improvement by a different shrink fitting method. REM - International Engineering Journal. Vol. 71. No. 4. pp. 593-597. 10.1590/0370-44672017710092.
Go to original source...
- A. A. ABD-ELTWAB, S. Z. EL-ABDEN, K. I. E. AHMED, M. N. EL-SHEIKH, AND R. K. ABDEL-MAGIED. (2017). An investigation into forming internally-spline sleeves by ball spinning. International Journal of Mechanical Sciences, Vol. 134, pp. 399-410. Elsevier Ltd. ISSN 00207403 doi: 10.1016/j.ijmecsci.2017.10.033.
Go to original source...
- J. CAI, T. A. DEAN, AND Z. M. HU. (2004). Alternative die designs in net-shape forging of gears," Journal of Materials Processing Technology, Vol. 150, No. 1-2, pp. 48-55. Elsevier B.V. ISSN 09240136, 18734774. doi: 10.1016/j.jmatprotec.2004.01.019.
Go to original source...
- P. A. F. MARTINS, M. L. ALVES, AND J. M. C. RODRIGUES. (2001). Cold forging of gears: experimental and theoretical investigation. Finite Elements in Analysis and Design, Vol. 37, pp. 549-558. Elsevier B.V. ISSN 0168874X. https://doi.org/10.1016/S0168-874X(00)00063-9
Go to original source...
- M. DESHPANDE AND A. GROSECLOSE. (2011). Selection of die materials and surface treatments for increasing die life in hot and warm forging. FIA Tech Conf., pp. no. 644, 1-23.
- T. W. KU. (2018). A study on two-stage cold forging for a drive shaft with internal spline and spur gear geometries. Metals (Basel). Vol. 8, no. 11. MDPI. ISSN: 2075-4701 doi: 10.3390/met8110953.
Go to original source...
- W. ZHUANG, L. HUA, X. HAN, AND L. DONG. (2014). Distribution of Microstructure and Vickers Hardness in Spur Bevel Gear Formed by Cold Rotary Forging. Advances in Mechanical Engineering, Vol. 2014. SAGE Publications Inc. ISSN 16878132, 16878140. doi: 10.1155/2014/809276.
Go to original source...
- D. D. VAN AND D. Q. VU. (2022). Investigation on Billets and Tools Geometry in Cold Forging of the Straight Bevel Gear. International Journal on Advanced Science, Engineering and Information Technology. Vol. 12, No. 2, pp. 867-872. INSIGHT - Indonesian Society for Knowledge and Human Development. ISSN 20885334, 24606952. doi: 10.18517/ijaseit.12.2.15977.
Go to original source...
- G. SAMO£YK. (2013). Investigation of the cold orbital forging process of an AlMgSi alloy bevel gear Journal of Materials Processing Technology, Vol. 213, No. 10, pp. 1692-1702. Elsevier B.V. ISSN 09240136, 18734774 doi: 10.1016/j.jmatprotec.2013.03.027.
Go to original source...
- R. DEVANATHAN AND V. MURALI. (2015). Numerical Simulation of Orbital Cold Forging of a Bevel Gear. International Journal of Innovative Research in Science, Engineering and Technology. Vol. 4, No. 4.
- S. S. S. S. PARAMASIVAM, D. KUMARAN, H. NATARAJAN, AND A. MISHRA. (2019). Numerical simulation of cold orbital forging process for gear manufacturing. International Journal of Manufacturing Technology and Management, Vol. 11, No. 2, pp. 126-132. Inderscience Enterprises Ltd. ISSN 13682148, 17415195
- X. HUANG, Y. ZANG, H. JI, B. WANG, AND H. DUAN. (2022). Combination gear hot forging process and microstructure optimization. Journal of Materials Research and Technology, Vol. 19, pp. 1242-1259. Elsevier Editora Ltda. ISSN 22387854. doi: 10.1016/j.jmrt.2022.05.113.
Go to original source...
- M. E. PLANCAK, D. Z. VILOTIC, M. C. STEFANOVIC, D. Z. MOVRIN, AND I. Z. KACMARCIK. (2012). Orbital Forging - A Plausible Alternative for Bulk Metal Forming. Journal of Trends in the Development of Machinery and Associated Technology, Vol. 16, No. 1, pp. 35-38,
- W. ZHUANG, L. HUA, AND X. HAN. (2018). Influences of key forging parameters on gear-tooth deviation of cold forged spur bevel gear. Procedia Manufacturing. Vol. 15, pp. 504-510. ISSN 23519789. doi: 10.1016/j.promfg.2018.07.260.
Go to original source...
- A. A. ABD-ELTWAB, K. M. ATIA, E. K. SAIED, AND A. M. ATIA. (2022). An Investigation into the Forming of Tube Ends Using the Ballizing Process. Design Engineering, Vol. No. 2022, pp. 3358-3374,
- RAGAB K. ABDEL-MAGIED, EMAD A. FAHMY, A. EL-SAYED M. HASSAN, MOHAMED, N. EL-SHEIKH, ESSAM K. SAIED AND AYMAN A. ABD-ELTWAB. (2020). An Investigation into Forming Externally Toothed Parts using Novel Tool based on Rotary Forging Technique. International Journal of Advanced Science and Technology. Vol. 29, No. 03, pp. 2194-2206. INSIGHT - Indonesian Society for Knowledge and Human Development. ISSN 20885334, 24606952.
- AYMAN A. ABD-ELTWAB, KARIMM.ATIA, ESSAM K. SAIED, AND A.M.ATIA. (2020). A Novel Tool For Producing Externally Splined Sleeves, International Journal of Scientific & Technology Research. 9: p. 882-885. ISSN 22778616.
- Abd-Eltwab, A.A., Helal, G.I., El-Sheikh, M.N., Saied, E.K., & Atia, A.M. (2023). An Investigation into Conventional Spinning Process Using Ball Shaped Rollers as Forming Tool. Manufacturing Technology Journal, Vol. 23 No. 6. pp. 788-800. J. E. Purkynì University in Ústí nad Labem. Czech Republic. ISSN 1213-2489. doi: 10.21062/mft.2023.084
Go to original source...
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