Abstract
In the process of internal thread cold extrusion, the extrusion tap is an indispensable tool. Therefore, it is important to improve the service life of the extrusion tap and reduce the tool wear. In this paper, using Central Composite Design response surface test, the influence of the parameters (including the guide cone angle, backhoe capacity, guide cone length and working cone length) of the extrusion tap on the forming quality of internal cold extrusion are investigated, so as to obtain the minimum extrusion torque and the minimum extrusion temperature. A polynomial regression response model of the minimum extrusion torque and minimum extrusion temperature is obtained. Using the regression model, the objective function is optimized, and a group of optimal parameters is obtained (guide cone angle: 10°, backhoe capacity: 0.32, guide cone length: 4 mm, and working cone length: 13 mm). Numerical simulation of the optimal parameters is also carried out. The results show that the measured extrusion torque and extrusion temperature are close to the predicted values with errors of 2 and 2.55%, respectively, which are well fitted by the model.
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Data availability
The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.
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This research was funded by the Shaanxi Provincial Natural Science Basic Research Project (No.: 2023-JC-YB-452).
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Miao-Yuan Mei is mainly responsible for the planning of research content and the writing of papers. Hong-Ling Hou is mainly responsible for the revision of research content and the revision of the paper. Tao Huang is mainly responsible for the establishment of finite element model. Shi Liu and Da-Hai Wang are responsible numerical simulation analysis. Li-Rong is mainly responsible for the data sorting and analysis.
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Miao-Yuan Mei: Simulation analysis, data processing. Hong‑Ling Hou: Research ideas, paper revision. Tao-Huang: CCD test. Shi Liu: Response surface analysis. Da-Hai Wang: Test data processing. Li-Rong Zhang: objective optimization.
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Mei, MY., Hou, HL., Huang, T. et al. Influence of extrusion tap parameters on the forming quality of internal thread cold extrusion. Int J Adv Manuf Technol 125, 4765–4777 (2023). https://doi.org/10.1007/s00170-023-11022-y
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DOI: https://doi.org/10.1007/s00170-023-11022-y