Assessment of Surface Residual Stresses Generated during Machining of Metastable Austenitic Stainless Steel using Acoustic Emission

C. R. Ward, J. Lamb, R. Reuben, P. Wilkinson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish
Title of host publicationProceedings of the 10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology
PublisherEuspen
Pages452-455
Number of pages4
ISBN (Print)9780955308253
Publication statusPublished - 2008
Event10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology 2008 - Zurich, Switzerland
Duration: 18 May 200822 May 2008

Conference

Conference10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology 2008
Abbreviated titleEUSPEN 2008
CountrySwitzerland
CityZurich
Period18/05/0822/05/08

ASJC Scopus subject areas

  • Instrumentation
  • Mechanical Engineering
  • Materials Science(all)
  • Environmental Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Assessment of Surface Residual Stresses Generated during Machining of Metastable Austenitic Stainless Steel using Acoustic Emission'. Together they form a unique fingerprint.

  • Cite this

    Ward, C. R., Lamb, J., Reuben, R., & Wilkinson, P. (2008). Assessment of Surface Residual Stresses Generated during Machining of Metastable Austenitic Stainless Steel using Acoustic Emission. In Proceedings of the 10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology (pp. 452-455). Euspen.