An efficient tapered tool having multiple blades for manufacturing cylindrical gears with power skiving
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Power skiving is a modern and productive method in the manufacturing of cylindrical internal gears and external gears. However, the high cost of skiving tool has prevented its widespread use. Accordingly, a novel skiving tool with multiple subblades on the rake face with respect to the traditional tool is proposed. First, the mathematical model of machine setup of gear skiving and the geometry model of multiblade tool working angles are derived. Then, the influence of working angles and maximum chip thickness related to the parameters of tool such as the crossed axes angle and the number of tool teeth are studied. Meanwhile, the relation between layout of tool subblade and chip deformation is analyzed. Finally, for a validation, the analogy experiment is conducted using a traditional skiving tool. The results show that the multiblade tool is under worse cutting condition compared with the traditional skiving tool, but some advisable suggestions, which could improve the bad cutting condition when using a multiblade skiving tool, have concluded in this study. The study results support the design engineers in the optimization of the multiblade skiving tool regarding more efficient and longer tool life.
KeywordsGear cutting Power skiving Tool design Process design
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This study is supported by the National Natural Science Foundation of China (No. 51805225), the China Postdoctoral Science Foundation (No. 2017M621682), and the Research Fund of DMIECT (No. DM201601).
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