This paper presents a study to validate the microendmill dynamics model derived in Part I. A laser Doppler vibrometer system that is coupled with a microscope is used to measure the natural frequencies and mode shapes of nonrotating microendmills with different geometries. Free-free boundary conditions are obtained by suspending the microendmills using elastic bands. The dynamic excitation is delivered through miniature piezoelectric elements attached to the microendmill shanks. In each case, the model is compared to experimental results and solid-element finite-element (FE) models. To evaluate the model in the presence of rotational effects, the model is compared to an FE model. In most cases, the model was seen to capture the dynamic behavior of microendmills accurately. The validated model is used to investigate the effects of microendmill geometry, and radial and tilt runouts on the modal behavior of microendmills. Furthermore, possible geometric simplifications to fluted region are evaluated based on the accuracy of the predicted natural frequencies of the microendmills.
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e-mail: ozdoganlar@cmu.edu
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June 2008
Special Section: Micromanufacturing
Microendmill Dynamics Including the Actual Fluted Geometry and Setup Errors—Part II: Model Validation and Application
Sinan Filiz,
Sinan Filiz
Department of Mechanical Engineering,
Carnegie Mellon University
, Pittsburgh, PA 15213
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O. Burak Ozdoganlar
O. Burak Ozdoganlar
Department of Mechanical Engineering,
e-mail: ozdoganlar@cmu.edu
Carnegie Mellon University
, Pittsburgh, PA 15213
Search for other works by this author on:
Sinan Filiz
Department of Mechanical Engineering,
Carnegie Mellon University
, Pittsburgh, PA 15213
O. Burak Ozdoganlar
Department of Mechanical Engineering,
Carnegie Mellon University
, Pittsburgh, PA 15213e-mail: ozdoganlar@cmu.edu
J. Manuf. Sci. Eng. Jun 2008, 130(3): 031120 (13 pages)
Published Online: June 13, 2008
Article history
Received:
December 17, 2007
Revised:
February 25, 2008
Published:
June 13, 2008
Connected Content
A companion article has been published:
Microendmill Dynamics Including the Actual Fluted Geometry and Setup Errors—Part I: Model Development and Numerical Solution
Citation
Filiz, S., and Ozdoganlar, O. B. (June 13, 2008). "Microendmill Dynamics Including the Actual Fluted Geometry and Setup Errors—Part II: Model Validation and Application." ASME. J. Manuf. Sci. Eng. June 2008; 130(3): 031120. https://doi.org/10.1115/1.2936379
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