Abstract
Cross rolling process with high-frequency induction heating is a new method to manufacture large-diameter gears, which has great advantage. While during the gear forming process, the defects of metal folding on the tooth top and asymmetrical flanks of tooth profiles occur, which severely affect the forming quality. To investigate the occurred defects, a simplified finite element (FE) model coupling electromagnetic-thermal and deformation fields is established in the DEFORM-3D software and is validated and considered reliable. Through numerical simulation and relevant experimental research, problems such as the metal folding on the tooth top and the asymmetrical flanks of the formed tooth profile in gear rolling process based on local induction heating are analyzed. The influence of the forming parameters on the defects is studied and can be concluded that the rabbit ear on the tooth top can be reduced by increasing the forming temperature and reducing the friction. Moreover, by the finish of alternating forward and reverse rotation, the profile error of left and right profile of workpiece decreased by 54%, proving the effectiveness of the finish process.
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Funding
This study is supported by The National Key Research and Development Program of China (Grant No. 2018YFB1307900), the National Natural Science Foundation of China (Grant No. 51904206), Shanxi Province Science and Technology Major Projects (Grant Nos. 20181102015, 20201102003), and the Natural Science Foundation of Shanxi Province (Grant No. 201901D211011).
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Xiaobin Fu conducted the simulation and experiments. Baoyu Wang and Tao Wang provided experimental supports and innovative advices. All authors read and approved the final manuscript.
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Fu, X., Wang, B. & Wang, T. Experimental and numerical investigations on the deformation defects by gear rolling process with local induction heating. Int J Adv Manuf Technol 117, 835–844 (2021). https://doi.org/10.1007/s00170-021-07821-w
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DOI: https://doi.org/10.1007/s00170-021-07821-w