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Accurate measurement of residual stress in metallic components using the contour method relies on the achievement of a good quality cut, on the appropriate measurement of the deformed cut surface and on the robust analysis of the measured data. There is currently no published standard or code of practice for the contour method. As a first step towards such a standard, this study draws on research investigations addressing the three main steps in the method: how best to cut the specimens; how to measure the deformation contour of the cut surface; and how to analyse the data. Good practice guidance is provided throughout the text accompanied by more detailed observations and advice tabulated in Appendix.
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-
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44. Turski, M., Edwards, L.: ‘Residual stress measurement of a 316 L stainless steel bead-on-plate specimen utilising the contour method’, Int. J. Press Vessels Pip, 2009, 86, (1), pp. 126–131 (doi: 10.1016/j.ijpvp.2008.11.020).
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51. Tosun, N., Cogun, C., Tosun, G.: ‘A study on kerf and material removal rate in wire electrical discharge machining based on Taguchi method’, J. Mater. Process. Technol., 2004, 152, (3), pp. 316–322 (doi: 10.1016/j.jmatprotec.2004.04.373).
-
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17. Hosseinzadeh, F., Bouchard, P.J.: ‘Mapping multiple components of residual stress tensor in a large P91 steel pipe girth weld using a single contour cut’, Exp. Mech., 2013, 53, (2), pp. 171–181 (doi: 10.1007/s11340-012-9627-z).
-
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-
25. Kunieda, M., Lauwers, B., Rajurkar, K.P., Schumacher, B.M.: ‘Advancing EDM through fundamental insight into the process’, CIRP Ann. Manuf. Technol., 2005, 54, (2), pp. 64–87 (doi: 10.1016/S0007-8506(07)60020-1).
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2. Withers, P.J.: ‘Residual stress and its role in failure’, Rep. Prog. Phys., 2007, 70, (12), pp. 2211–2264 (doi: 10.1088/0034-4885/70/12/R04).
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50. Tosun, N., Cogun, C., Inan, A.: ‘The effect of cutting parameters on workpiece surface roughness in wire EDM’, Mach. Sci. Technol., 2003, 7, (2), pp. 209–219 (doi: 10.1081/MST-120022778).
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-
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-
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20. Traore, Y., Bouchard, P.J., Francis, J.A., Hosseinzadeh, F.: ‘A novel cutting strategy for reducing plasticity induced errors in residual stress measurements made with the contour method’. Paper presented at the American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Proc. ASME Pressure Vessels and Piping Conf. – Materials and Fabrication, Baltimore, USA, 2011.
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48. Kuriakose, S., Mohan, K., Shunmugam, M.: ‘Data mining applied to wire-EDM process’, J. Mater. Process. Technol., 2003, 142, (1), pp. 182–189 (doi: 10.1016/S0924-0136(03)00596-X).
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26. Spedding, T.A., Wang, Z.Q.: ‘Parametric optimization and surface characterization of wire electrical discharge machining process’, Precis. Eng., 1997, 20, (1), pp. 5–15 (doi: 10.1016/S0141-6359(97)00003-2).
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28. Iqbal, A.K.M.A., Khan, A.A.: ‘Influence of process parameters on electrical discharge machined job surface integrity’, Am. J. Eng. Appl. Sci., 2010, 3, (2), pp. 396–402 (doi: 10.3844/ajeassp.2010.396.402).
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23. Hosseinzadeh, F., Bouchard, P.J., Kowal, J.: ‘Surface profile measurement for the contour method. OU/MatsEng/019, Issue 1’ (The Open University, Milton Keynes, UK, 2011).
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44. Turski, M., Edwards, L.: ‘Residual stress measurement of a 316 L stainless steel bead-on-plate specimen utilising the contour method’, Int. J. Press Vessels Pip, 2009, 86, (1), pp. 126–131 (doi: 10.1016/j.ijpvp.2008.11.020).
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