During the cutting process of circular saw blades for wrought aluminum alloy extruded profiles for architecture,the vibration and noise of the profile due to the periodic impact of the circular saw blade seriously affect the processing efficiency and quality.A single-factor cutting experiment of aluminum alloy profiles with circular saw blade was designed to study the vibration characteristics at different feed rates.The results of time domain analysis show that the vibration signal has obvious subsection characteristics with the change of sawing position,and the difference between the peak vibration acceleration at different sawing stages is generally more than three times of the minimum value,which indicates that some typical structure has a significant impact on the vibration,such as the transverse flange structure.Through the frequency domain analysis,there is no multiple relationship between the peak frequency of sawing vibration and the rotation frequency,indicating that the rotation frequency is not the main factor affecting the vibration of the sawing process for aluminum alloy profiles.Moreover,with the increase of feed speed,the vibration energy gradually transfers from low frequency to high frequency.With the increase of feed speed from 25.0 mm/s to 75.0 mm/s,the maximum value of vibration acceleration in the feed direction gradually increased from 1 669.91 m/s2 to 2 001.59 m/s2,increasing by 19.86%.While,in the vertical feed direction,it is gradually increased from 932.52 m/s2 to 1 097.30 m/s2,increasing by 17.67%.The results show that the various structures in the wrought aluminum alloy extruded profiles for architecture have a much greater effect on sawing vibration than the effect produced by the feed speed.