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RESEARCH PAPERS: Reliability, Stress Analysis, and Failure Prevention

The Effect of Surface Roughness on Fitting Strength of Shrink Fit Between Ceramic and Metal Elements

[+] Author and Article Information
K. Kato

Department of Mechanical Engineering, Tohoku University, Sendai 980, Japan

T. Kayaba

Department of Mechanical Engineering, Hachinohe Institute of Technology, Hachinohe 031, Japan

I. Nitta

Department of Mechanical Engineering, Niigata University, Niigata 950-21, Japan

S. Shimoda

Niigata Technical Junior College, Niigata 950-21, Japan

J. Vib., Acoust., Stress, and Reliab 111(3), 318-325 (Jul 01, 1989) (8 pages) doi:10.1115/1.3269859 History: Received May 04, 1988; Online November 23, 2009

Abstract

Shrink fit is a basic and simple technique for joining metal elements. But it is not suitable for ceramic and metal elements, especially at elevated temperatures. For the accurate estimation of fitting strength between ceramic and metal elements, an understanding of the deformation of surface micro-asperities during contact is introduced in this paper. The elastic deformation of a shaft and a cylinder and the elastic-plastic deformation of the asperities were taken into consideration for the theoretical fitting strength. Theoretical estimations of fitting strength between a ceramic shaft and a metal cylinder showed good agreement wtih experimental values in various fitting interferences and at temperatures of 20°C–180°C.

Copyright © 1989 by ASME
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