0
TECHNICAL PAPERS

Modeling of the Holding Force in an Electromagnetic Chuck

[+] Author and Article Information
Alejandro Felix, Shreyes N. Melkote

The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

Yoichi Matsumoto

The Timken Company, Canton, OH 44706-0930

J. Manuf. Sci. Eng 122(3), 569-575 (Nov 01, 1999) (7 pages) doi:10.1115/1.1286259 History: Received May 01, 1999; Revised November 01, 1999
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

DeStefani, J. D., 1994, “Magnetic Chucks Attract New Users,” Tooling and Production, Vol. 60, No. 1, pp. 61–64.
Barton,  S. C., 1997, “Magnetic Workholding for Milling and Turning,” Mach. Sci. Technol. SME, 8, No. 1, pp. 1–17.
Felix, A., and Melkote, S. N., 1998, “Effect of Workpiece Flatness and Surface Finish on the Holding Force in a Magnetic Chuck,” Proceedings of the ASME, Manufacturing Science and Engineering, MED-Vol. 8, pp. 925–931; to also appear in J. of Manufac. Sci. and Eng.
Saito,  Y., Nishiwaki,  N., Ootani,  T., Okimoto,  K., Fleming,  R., 1985, “Study on the Chucking Force of an Electro-Magnetic Chuck,” Bulletin of the JSME, 28, No. 237, pp. 515–522.
Law, J. D., Busch, T. J., Lipo, T. A., 1996, “Magnetic Circuit Modeling of the Field Regulated Reluctance Machine Part I: Model Development,” IEEE Transactions on Energy Conversion, Vol. 11, No. 1, pp. 49–55.
Sen, P. C., 1989, Principles of Electric Machines and Power Electronics, John Wiley & Sons.
ASTM Standards A 773/A 773M-96, 1996, Standard Test Method for DC Magnetic Properties of Materials Using Ring and Permeameter Procedures with DC Electronic Hysteresisgraphs, ASTM, pp. 1–10.
ANSYS Theory Reference, 1997, Electromagnetics, Ch. 5, 8th Edition, SAS IP, Inc.
Felix, A., 1999, Characterization and Modeling of a Magnetic Workholding Device, M.S. Thesis, Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia.

Figures

Grahic Jump Location
Principle of operation of a magnetic chuck
Grahic Jump Location
Schematic of the 4-pole chuck and workpiece
Grahic Jump Location
Magnetic circuit for 1/4 model of chuck-workpiece system
Grahic Jump Location
Chuck geometry: (a) actual, (b) approximate
Grahic Jump Location
Geometric approximation of the workpiece
Grahic Jump Location
Calculation of the mean magnetic path
Grahic Jump Location
Algorithm for solution of flux in the magnetic circuit model
Grahic Jump Location
Schematic of the experimental setup
Grahic Jump Location
Workpiece geometry used in experiments
Grahic Jump Location
B-H curves for the chuck and workpiece material
Grahic Jump Location
Normal holding force vs. airgap length for different coil currents
Grahic Jump Location
Measured versus predicted normal holding force—no shim case
Grahic Jump Location
3-D mesh used for the 4-pole chuck model
Grahic Jump Location
Measured and predicted holding force using the finite element model-0.1 mm airgap
Grahic Jump Location
Cross section used to display leakage effects
Grahic Jump Location
Leakage flux at 1 Amp - 0.1 mm airgap
Grahic Jump Location
Leakage flux at 4.5 Amp - 0.1 mm airgap

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In