An improved model of the milling process is presented. The model proposes a method of determining cutting forces in five distinct regions where the cutting edge travels during dynamic milling. Trochoidal motion of the milling cutter is used in determining uncut chip thickness. The kinematics of the cutter and workpiece vibrations are modelled, which identifies the orientation and velocity direction of the cutting edge during dynamic cutting. The model allows the prediction of forces and surface finish under rigid or dynamic cutting conditions. The proposed mechanism of chip thickness, force and surface generation is proven with simulation and experimental results. It is found that when the tooth passing frequency is selected to be an integer ratio of a dominant frequency of tool-workpiece structure in milling imprint of vibrations on the surface finish is avoided.
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May 1991
This article was originally published in
Journal of Engineering for Industry
Research Papers
Mechanism of Cutting Force and Surface Generation in Dynamic Milling
D. Montgomery,
D. Montgomery
The University of British Columbia, Department of Mechanical Engineering, Vancouver, B. C., Canada, V6T 1W5
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Y. Altintas
Y. Altintas
The University of British Columbia, Department of Mechanical Engineering, Vancouver, B. C., Canada, V6T 1W5
Search for other works by this author on:
D. Montgomery
The University of British Columbia, Department of Mechanical Engineering, Vancouver, B. C., Canada, V6T 1W5
Y. Altintas
The University of British Columbia, Department of Mechanical Engineering, Vancouver, B. C., Canada, V6T 1W5
J. Eng. Ind. May 1991, 113(2): 160-168
Published Online: May 1, 1991
Article history
Received:
July 1, 1989
Revised:
April 1, 1990
Online:
April 8, 2008
Citation
Montgomery, D., and Altintas, Y. (May 1, 1991). "Mechanism of Cutting Force and Surface Generation in Dynamic Milling." ASME. J. Eng. Ind. May 1991; 113(2): 160–168. https://doi.org/10.1115/1.2899673
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