Noise and Vibration in rotating vertical milling cutters
Noise and Vibration in rotating vertical milling cutters
(OP)
Hi
I am trying to predict the noise generated in high speed face milling cutters (while cutting the surface of the workpiece). I had measured the noise generated in this process experimentally, and found two important sources (not considering the noise from spindle/motor). One is due to aerodynamics from the rotating cutter, and another is due to vibration during cutting. The significant frequencies are all at the cutting tooth passing frequency and harmonics. Both the cutter and workpiece natural frequencies do not show up in the spectral plots. So, which of the two - workpiece or cutter, is likely to be more dominant in producing this noise picked by the microphone?
More details:
The workpiece is a Al 6061 rectangular block (90mm X 90 mm X 90 mm) and the cutter is a Steel body of diameter 100 mm and tool overhang of 70 mm, with six peripheral cutting inserts.
Thanks
- Soundanal
I am trying to predict the noise generated in high speed face milling cutters (while cutting the surface of the workpiece). I had measured the noise generated in this process experimentally, and found two important sources (not considering the noise from spindle/motor). One is due to aerodynamics from the rotating cutter, and another is due to vibration during cutting. The significant frequencies are all at the cutting tooth passing frequency and harmonics. Both the cutter and workpiece natural frequencies do not show up in the spectral plots. So, which of the two - workpiece or cutter, is likely to be more dominant in producing this noise picked by the microphone?
More details:
The workpiece is a Al 6061 rectangular block (90mm X 90 mm X 90 mm) and the cutter is a Steel body of diameter 100 mm and tool overhang of 70 mm, with six peripheral cutting inserts.
Thanks
- Soundanal





RE: Noise and Vibration in rotating vertical milling cutters
Can you modify the local atmosphere so that you can check whether the aerodynamic effects are significant?
If you cut a different material at the same speed presumably the aerodynamic noise should stay the same, but the mechanical cutting noise should change.
Cheers
Greg Locock
RE: Noise and Vibration in rotating vertical milling cutters