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Parametric Study, the Process Benefits, Optimization and Chip Morphology Study of Machining Parameter on Turning of Inconel 718 Using CVD Coated Tool and Nd: YAG Laser
Technical Paper
2018-28-0029
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents the parametric study, process benefits, optimization and chip appearance of machining parameters on turning of the Inconel 718 using Nd: YAG laser source. To analyze the mentioned above effect on alloy 718, the cutting inserts of chemical vapor disposition coated (CVD) TiN/TICN/Al2O3 are used to turn at the time of machining. To evaluate the linear (mean effect plots) and interaction effect (3D surface plots) of laser parameters on the force, roughness and tool wear to keep the minimal, experiments of the L27 orthogonal array are done by selecting the controllable parameters viz speed, the rate of feed along with laser power. From the parametric study, increase in speed and laser power along with decrement in the rate of feed resulted in lower cutting force. But surface finish and tool wear reduced with a decline in speed and scale of feed and increased with increment in laser power. The investigations result in shows that with the application of moderate laser power decline the cutting force by 28%; both surface roughness along with flank wear by 60% that of CM. Results of variance test show that the speed along with the rate of feed bags the critical effect on the force, roughness, and tool wear followed by laser power. Desirability function analysis (DFA) is employed as response optimizer to determine optimum levels which minimize force, roughness as well as flank wear. At the determined optimum conditions compared to CM, 66% increment in the tool life is obtained in LAT. The presence of abrasion and flaking while the absence of chipping is observed in LAT compared to CM using an optical image. Under chip appearance, the benefit is determined due to the maximum un-deformed chip thickness of about 130 μm in LAT compared to CM.
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Kannan, V. and Kannan, V., "Parametric Study, the Process Benefits, Optimization and Chip Morphology Study of Machining Parameter on Turning of Inconel 718 Using CVD Coated Tool and Nd: YAG Laser," SAE Technical Paper 2018-28-0029, 2018, https://doi.org/10.4271/2018-28-0029.Data Sets - Support Documents
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