| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 782094 | International Journal of Machine Tools and Manufacture | 2006 | 9 Pages |
Abstract
In this paper, a dynamic model of micro-drill-spindle system is developed using the Timoshenko beam element from the rotor dynamics to study dynamic stresses of micro-drills. The model includes effects of eccentricity of the spindle-clamp-drill system, the axial drilling force, the system rotational inertia, the gyroscopic moment, and bearings of micro-hole drilling machines on bending deformation of micro-drills during machining. After the model is verified using the published work, effects of the clamped length of micro-drills, the bearing stiffness and damping, the spindle speed, the system eccentricity, and the axial drilling force on dynamic stresses of micro-drills are analyzed using the model.
Keywords
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Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
Pei Yongchen, Tan Qingchang, Yang Zhaojun,