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IJAT Vol.14 No.2 pp. 294-303
doi: 10.20965/ijat.2020.p0294
(2020)

Paper:

Evaluation of Machine Tool Spindle Using Carbon Fiber Composite

Ryo Kondo, Daisuke Kono, and Atsushi Matsubara

Department of Micro Engineering, Kyoto University
Kyoto daigaku-katsura, Nishikyo-ku, Kyoto 615-8540, Japan

Corresponding author

Received:
August 7, 2019
Accepted:
February 12, 2020
Published:
March 5, 2020
Keywords:
spindle, composite, carbon fiber
Abstract

Spindle is one of the most important component of machine tools because spindle’s performance including thermal property and dynamic property greatly influences the accuracy and productivity in machining process. This study investigates the effect of the application of carbon fiber reinforced plastic (CFRP) to the spindle shaft on the performance of machine tool spindles. CFRP and steel spindle shafts with the same geometry were developed for fair comparison. Thermal and dynamic properties of the developed shaft and spindle unit were evaluated and compared. The experimental and simulation results showed that the CFRP spindle shaft improved the axial thermal displacement and dynamic stiffness. The axial thermal displacement was decreased to 1/3 of that of the steel spindle. The compliance was also decreased to 1/2. The design of the thermal displacement distribution around the bearing should be an important issue in the CFRP spindle for the thermal stability of the dynamic property.

Cite this article as:
R. Kondo, D. Kono, and A. Matsubara, “Evaluation of Machine Tool Spindle Using Carbon Fiber Composite,” Int. J. Automation Technol., Vol.14, No.2, pp. 294-303, 2020.
Data files:
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Last updated on Dec. 02, 2020