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TECHNICAL PAPERS: Heat Transfer in Manufacturing

Fluid-Dynamic Analysis and Optimization of the Quenching Process for Hardening of Change-Speed Gears Using DOE–ANOVA Method

[+] Author and Article Information
Paolo M. Congedo, Antonio Ficarella, Domenico Laforgia

Dipartimento di Ingegneria Dell’Innovazione-Crea, Università Degli Studi di Lecce, via per Arnesano, Lecce, Italy, I-73100

J. Heat Transfer 126(3), 365-375 (Jun 16, 2004) (11 pages) doi:10.1115/1.1731355 History: Received November 01, 2002; Revised February 04, 2004; Online June 16, 2004
Copyright © 2004 by ASME
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References

Figures

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Geometrical configuration
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A detail of drilled metallic discs around a central tubular mount where the gears are placed
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Experimental data for the actual configuration: gears planarity errors versus the position varying the operating pressure
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Experimental data for the actual configuration: gear planarity errors versus the operating pressure
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Contours of velocity magnitude for the original configuration 2
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Volume average temperature of the gear no. 1 versus time varying the grid spacing
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Grid convergence indexes, auditing ratio and order of convergence versus time (grid spacing analysis)
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Volume average temperature of the gear no. 1 versus time varying the time step
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Grid convergence indexes, auditing ratio and order of convergence versus time (time step analysis)
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Main effects on performance index 1 (heat transfer rate) versus the design parameters
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Main effects on performance index 2 (cooling homogeneity between gears) versus the design parameters
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Main effects on performance index 3 (cooling homogeneity inside each gears) versus the design parameters
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Design parameters interaction effects on index 1 (heat transfer rate)
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Design parameters interaction effects on index 2 (cooling homogeneity between gears)
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Design parameters interaction effects on index 3 (cooling homogeneity inside each gears)
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Nitrogen path lines with configuration 4
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Nitrogen path lines with configuration 15

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