Abstract
Power skiving is one of the most effective methods for manufacturing high-accuracy gears, especially internal gears. However, the shortened tool life inhibits the large-scale industrialization of the promising technology. The study proposes a novel multi-blade skiving tool consisting of one finishing blade and several roughing blades, which can achieve a higher productivity and a longer tool life. The barrel-shaped cutter is derived based on the analysis of the conjugated surface of the tool for cylindrical gear skiving. By establishing a cutting force model that can accurately predict undeformed chips, the influence of the cutter blade outer diameter on cutting force and the influence of cutting blade crossed angle on chips and tool wear are analysed. The feasibility of the tool is verified by cutting experiments. The proposed multi-blade skiving tool is a promising approach to improve productivity and tool life. It can be applied in gear skiving applications such as the design of skiving tools.
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