For the milling with thin-walled structure, the effect of interaction between workpiece and tool and the position depended stiffness of workpiece can’t be ignored. It is a challenge work to determine the stability lobes. In this thesis, the model of the milling force and chip thickness is derived and then the governing equations of motion of the dynamic system are presented. A time-domain simulation isused to investigate the stability and three dimensions stability surface are obtained in the space of spindle speed, cutting position, and axial depth of cut. The effects of modal on the stability of milling processes are position and spindle speed depended are discussed and the position dependent mechanism of loss of stability are pointed.
Key words
milling /
stability /
time varying stiffness /
thin-walled structure
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References
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Footnotes
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