Research and improvement of the cutting performance of skiving tool

Skiving is an efficient and promising gear cutting technology. For further improvement of the reliability and the cutting performance of skiving tool, fundamental research is conducted. Firstly, mathematical model of skiving is derived based on the theory of gearing, and the working rake and relief angles are analyzed. It is found that the top-recess nose is the weakest part of skiving tool tooth. Secondly, mathematical model of cutting force in gear skiving is presented, and the mechanical performances of the tool in skiving with different commonly used feeding techniques are investigated. The results show that the multiple-side-feeds technique is more advisable in gear skiving, but it is still futile for the wear reducing of the up-recess edge. Finally, an improvement of the multiple-side-feeds technique is proposed for wear reducing of the up-recess edge of skiving tool.