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Experimental study on abrasive waterjet polishing of hydraulic turbine blades

Khakpour, H. et Birglenl, L. et Tahan, S.-Antoine et Paquet, F.. 2014. « Experimental study on abrasive waterjet polishing of hydraulic turbine blades ». In 27th IAHR Symposium on Hydraulic Machinery and Systems, IAHR 2014 (Montreal, QC, Canada, Sept. 22-26, 2014) Coll. « IOP Conference Series: Earth and Environmental Science », vol. 22. Institute of Physics Publishing.

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In this paper, an experimental investigation is implemented on the abrasive waterjet polishing technique to evaluate its capability in polishing of surfaces and edges of hydraulic turbine blades. For this, the properties of this method are studied and the main parameters affecting its performance are determined. Then, an experimental test-rig is designed, manufactured and tested to be used in this study. This test-rig can be used to polish linear and planar areas on the surface of the desired workpieces. Considering the number of parameters and their levels, the Taguchi method is used to design the preliminary experiments. All experiments are then implemented according to the Taguchi L18 orthogonal array. The signal-to-noise ratios obtained from the results of these experiments are used to determine the importance of the controlled polishing parameters on the final quality of the polished surface. The evaluations on these ratios reveal that the nozzle angle and the nozzle diameter have the most important impact on the results. The outcomes of these experiments can be used as a basis to design a more precise set of experiments in which the optimal values of each parameter can be estimated.

Type de document: Compte rendu de conférence
Tahan, Antoine
Affiliation: Génie mécanique
Date de dépôt: 25 févr. 2015 21:50
Dernière modification: 14 sept. 2017 14:24

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