The modelling of roundness in cylindrical plunge grinding to incorporate wave shift and external vibration effects

Pearce, T. R.A.; Fricker, D. C.; Speight, A.

Abstract

An elastic model has been developed which predicts the roundness profiles generated in cylindrical plunge grinding. The model considers two sources of error, which are run-out of the grinding wheel and an external vibration. Comparisons are made with experimental measurements, in which wheel run-out and an external vibration are imposed. Explanations are given for the differences. In particular, the model shows that roundness profiles are sensitive to small changes in conditions, such as wheel and workpiece speeds. In addition, the model clearly illustrates the difficulty in trying to assess the sources of errors from the shape of the roundness profile when more than one source of error is present. © IMechE 2006.

• Journal Article Type: Article
• Publication Date: Dec 1, 2006
• Journal: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
• Print ISSN: 0954-4054
• Electronic ISSN: 2041-2975
• Publisher: SAGE Publications
• Peer Reviewed: Peer Reviewed
• Volume: 220
• Issue: 8
• Pages: 1347-1358
• DOI: https://doi.org/10.1243/09544054JEM509
• Keywords: cylindrical plunge grinding, roundness, vibration, wave shift
• Public URL: https://uwe-repository.worktribe.com/output/1041661
• Publisher URL: http://dx.doi.org/10.1243/09544054JEM509
• Additional Information: Additional Information : This EPSRC/industry supported research concerns the effects on workpiece roundness of the rpm ratio of grinding wheel to workpiece, in particular the phase shift of the waviness produced by wheel eccentricity across consecutive workpiece revolutions, a factor not normally controlled in industry. Dissemination via IGT Members Technical Meetings and via short courses to industry has resulted in companies (such as Ford, Toyota and Nissan) being able to use this information in controlling their cylindrical grinding processes [R C Offer, The Barden Corporation (UK) Ltd, Plymouth].