4.5 Article

Measurement and prediction of through-section residual stresses in the manufacturing sequence of bearing components

Journal

CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 68, Issue 1, Pages 57-60

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2019.03.004

Keywords

Residual stress; Hard machining; Neutron diffraction

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Through-section residual stresses in an asymmetric, thin-walled tapered bearing component were non-destructively studied via neutron diffraction after soft machining, heat treatment and hard turning. Two-dimensional area maps revealed non-uniform distributions of stress fields in both the thinnest and thickest sections of the component, indicating that the entire processing sequence plays a vital role - not only in distortion, but in the final stress state as well. A computational model was developed to further understand the extent of the distortion induced in bearing components as a result of process variables in the manufacturing sequence. (C) 2019 Published by Elsevier Ltd on behalf of CIRP.

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