Abstract
The overall aim of this work is to establish whether the processes which cause surface residual stresses during the CNC turning of difficult-to-machine materials generate identifiable acoustic emission (AE). If successful, this would offer an industrially robust technique for assessing the quality of high added-value machined components as defined by the surface finish and the residual stress induced by the machining process. The research involves machining metastable austenitic stainless steel under different cutting conditions to promote stress-induced austenitemartensite phase transformations. This phase change introduces surface residual stresses by virtue of the volume change, which can seriously affect the service life of manufactured components. The interim conclusion of the work is that AE generated during machining appears to be related to the measured surface residual stress, although further work is required to establish whether the generating mechanism is the intensity of the mechanical contact or the martensitic transformation itself.
Original language | English |
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Title of host publication | Proceedings of the 10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology |
Publisher | Euspen |
Pages | 452-455 |
Number of pages | 4 |
ISBN (Print) | 9780955308253 |
Publication status | Published - 2008 |
Event | 10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology 2008 - Zurich, Switzerland Duration: 18 May 2008 → 22 May 2008 |
Conference
Conference | 10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology 2008 |
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Abbreviated title | EUSPEN 2008 |
Country/Territory | Switzerland |
City | Zurich |
Period | 18/05/08 → 22/05/08 |
ASJC Scopus subject areas
- Instrumentation
- Mechanical Engineering
- General Materials Science
- Environmental Engineering
- Industrial and Manufacturing Engineering