Title: Evaluation of sustainability of mould steels based on machinability data

Authors: I. Zaghbani, V. Songmene, G. Kientzy, H. Lehuy

Addresses: Ecole de Technologie Superieure, ETS, Universite du Quebec, 1100 Notre-Dame West, Montreal (Qc), H3C 1K3, Canada. ' Ecole de Technologie Superieure, ETS, Universite du Quebec, 1100 Notre-Dame West, Montreal (Qc), H3C 1K3, Canada. ' Ecole de Technologie Superieure, ETS, Universite du Quebec, 1100 Notre-Dame West, Montreal (Qc), H3C 1K3, Canada. ' Sorel Forge Co., 100 McCarthy, St-Joseph-de-Sorel (Qc), J3R 3M8, Canada

Abstract: In this study, a new model was proposed for the Product Sustainability Index (PSI). The PSI estimation was based on the tool life, the cutting force, the surface finish, the energy consumption, the operation cost and the acoustic emissions. The PSI of four mould steels (SF-2312 [300 HB], SF-5 [300 HB], SF-2000 [341 HB] and SP-300 [341 HB]) was evaluated using the developed model and machinability data from dry and wet cutting tests. The model was able to predict the PSI of the considered mould steels at different cutting speeds, and the predicted results were in good agreement with the experimental measurements. The PSI was found to be dependent on lubrication mode, cutting speed and workpiece hardness. Steels with similar composition but different hardness exhibits different PSI.

Keywords: mould steels; machinability; dry machining; wet machining; surface finish; machining costs; product sustainability index; sustainable development; tool life; cutting force; energy consumption; acoustic emission; workpiece hardness.

DOI: 10.1504/IJMMM.2010.029846

International Journal of Machining and Machinability of Materials, 2010 Vol.7 No.1/2, pp.58 - 81

Available online: 02 Dec 2009 *

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