Modification of the Dynamic Characteristics of the Tool Tip by Adding Mass on Tool–Tool Holder System

Shen Yang; Yong Jie Chen; Chen Chen; Ning Li

doi:10.4028/www.scientific.net/AMM.325-326.761

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 325-326Modification of the Dynamic Characteristics of the...

Modification of the Dynamic Characteristics of the Tool Tip by Adding Mass on Tool–Tool Holder System

Abstract:

In this paper, a torus is designed as an adding mass to modify the dynamic characteristics of the tool-holder system in free boundary condition and in fixing boundary condition. The torus is fixed on the holder of a given face milling cutter, which may change the mass distribution and the stiffness distribution of the system, to adjust the frequency and damping ratio of the tool tip. Although the dynamic characteristics of the tool tip are significantly influenced by holder-spindle interface, the influence of the tool-holder can’t be neglected. In this attempt, by adding mass on the tool holder, the first order frequency decreased by 37% in free boundary condition and 6.7% in fixing boundary condition. The first damping radio increased by 48% in free boundary condition and 4.5% in fixing boundary condition. Chatter suppression is verified in the cutting process by adding mass on the holder.

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Periodical:

Applied Mechanics and Materials (Volumes 325-326)

Pages:

761-764

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.325-326.761

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Online since:

June 2013

Authors:

Shen Yang, Yong Jie Chen, Chen Chen, Ning Li

Keywords:

Adding Mass, Chatter Suppression, Dynamic Characteristic, Tool Holder

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