Vibration cutting mechanism and its application

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Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (3) : 88-91,9.

论文

Vibration cutting mechanism and its application

WU Ji-mei1； HOU Yu-peng2； MA Li,e1

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Abstract

The relative movement between the cutting tool and the paper stack was compared based on the kinematics analysis of the ordinary and vibratory cutting process respectivly. The prerequisite of realizing the vibratory cutting effect is that the cutting speed is smaller than cutting tool's maximum vibration velocity, which is known from the analysis, and the relative size of the two parameters decides the cutting time in a vibration cutting cycle. The smaller the cutting speed is and the higher the vibration frequency is, the smaller the cutting length is in a vibration cutting cycle. The impulsive cutting force, which is created in the vibratory cutting process, is related to the paper shearing strength, vibration cutting cycle, cutting time as well as cutting length. The reason of the vibratory cutting effect surpassing the ordinary cutting effect is obtained as follows. The slight division effect of impulsive cutting force reduces the cutting area in a vibration cutting cycle, thus reduces the cutting resisting force, and the cutting surface quality is improved.