Experimental investigation of surface crack density and recast layer thickness of WEDMed Inconel 825

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KUMAR P.; GUPTA M.; KUMAR V.

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Journal Paper

Paper Information

Journal: JOURNAL OF COMPUTATIONAL AND APPLIED RESEARCH IN MECHANICAL ENGINEERING Year:2021 | Volume:11 | Issue:1 Page(s): 205-216

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Title

Experimental investigation of surface crack density and recast layer thickness of WEDMed Inconel 825

Author(s)

KUMAR P. | GUPTA M. | KUMAR V. | Issue Writer Certificate

Keywords

Wire-cutelectrical discharge machining

Inconel 825

Surface crack density

Recast layer thickness

Desirability

Abstract

The present research attempts to analyze the surface topography of WEDMed Inconel 825 concerning surface crack density (SCDi) and recast layer thickness (RCLt). Formation of cracks, recast layer, and heat-affected zone are the major issues in determining the final performance of the WEDM machined sample. In this study, WEDM characteristics viz. pulse on time (Ton), pulse off time (Toff), gap voltage (SV), peak current (IP), wire tension (WT), and wire feed (WF) are optimized for the response SCDi and RCLt by response surface methodology. The outcome manifests that the topography of the machined surface becomes more rougher at the increased value of Ton, IP, and SV. RSM emerges as a great tool in the development of a predicted model based on the desirability approach and finding optimal parametric combinationm which results in reduced SCDi and RCLt. At the optimum combination of process parameters, i. e., 109 machine unit Ton, 36 machine unit Toff, 54 V SV, 120A IP, 9 machine unit WT and 7 m/min WF, the values obtained for SCDi and RCLt are 0. 00160 μ m/μ m2 and 20. 991μ m, respectively with an error of less than 5%.

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APA: Copy

KUMAR, P., GUPTA, M., & KUMAR, V.. (2021). Experimental investigation of surface crack density and recast layer thickness of WEDMed Inconel 825. JOURNAL OF COMPUTATIONAL AND APPLIED RESEARCH IN MECHANICAL ENGINEERING (JCARME), 11(1), 205-216. SID. https://sid.ir/paper/670293/en

Vancouver: Copy

KUMAR P., GUPTA M., KUMAR V.. Experimental investigation of surface crack density and recast layer thickness of WEDMed Inconel 825. JOURNAL OF COMPUTATIONAL AND APPLIED RESEARCH IN MECHANICAL ENGINEERING (JCARME)[Internet]. 2021;11(1):205-216. Available from: https://sid.ir/paper/670293/en

IEEE: Copy

P. KUMAR, M. GUPTA, and V. KUMAR, “Experimental investigation of surface crack density and recast layer thickness of WEDMed Inconel 825,” JOURNAL OF COMPUTATIONAL AND APPLIED RESEARCH IN MECHANICAL ENGINEERING (JCARME), vol. 11, no. 1, pp. 205–216, 2021, [Online]. Available: https://sid.ir/paper/670293/en

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