Aerodynamic Noise Radiation from a Circular Cutting Tool : Effect of Slit on Aerodynamic Noise Reduction

抄録

This paper presents the results of an investigation into the effectiveness of a circular cutting tool with a slit tooth on aerodynamic noise reduction. The aerodynamic noise from a circular cutting tool is caused by vortices generated behind a tooth. It is possible to reduce the aerodynamic noise by controlling the vortices. Using a columnar tooth model with a slit made longitudinally through the tooth, the vortices are controlled by the self-jet from the slit. From the experimental results, the sound pressure level of the aerodynamic noise is reduced and the influence of the slit ratio (slit width/tooth diameter) on the aerodynamic noise is clarified.