動的切削力を考慮した再生びびり振動の研究

概要

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This paper deals with the analysis of regenerative chatter vibration in orthogonal and three-dimensional cutting, considering the cutting force due to not only uncut chip thickness but also the displacement velocity of a tool in the direction of the tool shank. Chatter stability limits obtained in the theoretical analysis are verified by some experiments which are carried out to investigate the influence of cutting conditions on the critical width (or depth) of cut. The results obtained are as follows : (1) Chatter stability limits evaluated by the analysis agrees quantitatively with the experimental value in orthogonal and three-dimen-sional cutting. (2) There is an unconditional stable region independently of the cutting stiffness and the structural dynamics. (3) By means of a dimensionless factor which is dependent on cutting conditions (e.g. cutting speed, depth of cut and shear angle etc.), it is able to estimate the influence of dynamic cutting force on chatter stability limits.
公益社団法人精密工学会の論文
1984-07-05