Effect of wire diameter on surface integrity of wire electrical discharge machined Inconel 706 for gas turbine application

Sharma, Priyaranjan; Chakradhar, D.; Narendranath, S.

doi:10.1016/j.jmapro.2016.09.001

Cited by 63 publications

(25 citation statements)

References 16 publications

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“…More distortion of the work material will take place if it cuts with a large size knife. Better MRR and SR with small diameter is obtained, and this is in line with the previous research (Sharma et al, 2016).…”

Section: Anovasupporting

confidence: 92%

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A Novel Approach to Improve WEDM Performance on Inconel718, by Using Small Diameter Zinc Coated Wire

R¹,

Tjprc²

2019

IJMPERD

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In this paper, a novel approach to increase the wire electrical discharge machining performance by using small diameter wire is presented. As wire in wire electrical discharge machining (WEDM) is the only externally added into the intrinsic system, its role is determinant in the performance of WEDM. It is characterised by essential mechanical, electrical, and thermal properties. Here 0.15, 0.20, and 0.25 mm diameter zinc coated wire is used, on 8, 10 and 12 mm thick rectangular blocks of Inconel718, to investigate the performance measures such as the material removal rate (MRR), and surface roughness (SR). Taguchi L27 orthogonal array is employed to ascertain the effect of varying diameter. It is observed that MRR and SR. are greatly influenced by wire diameter. A small size wire diameter is proved to be better on all accounts, promising a high MRR with lower SR. Further SEM studies revealed that the alterations such as debris and oxide deposition seen on the surface are very less and is acceptable with no foreign particle accumulation on the surface revealed by EDAX. There are no cracks developed in the cutting with small diameter wire.

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Section: Anovasupporting

confidence: 92%

“…An increase in cutting speed has been reported when the diameter decreases from 0.30 to 0.20 mm. (Sharma et al, 2016) studied the effect of brass wire diameter on the surface integrity. For the comparative investigation of different diameter wires low, medium and high discharge energy setting was selected.…”

Section: Original Articlementioning

confidence: 99%

A Novel Approach to Improve WEDM Performance on Inconel718, by Using Small Diameter Zinc Coated Wire

R¹,

Tjprc²

2019

IJMPERD

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“…Subhramanyam and Sarkar (2013) studied the statistical analysis of WEDM on surface finish. Sharma et al (2016) studied the effect of wire diameter on surface integrity of Inconel 706 for gas turbine applications in wire electric discharge machine.…”

Section: Literature Reviewmentioning

confidence: 99%

A multi objective optimization of gear cutting in WEDM of Inconel 718 using TOPSIS method

Mohapatra¹,

Sahoo²

2018

10.5267/j.dsl

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The present paper deals with the experimental analysis and multi objective optimization of gear cutting process of Inconel 718 using WEDM. The objective of the present work is to optimize the parameters in order to maximize the material removal rate and minimize the kerf in a gear cutting process to get the optimum value. The MRR and kerf play a major role in optimizing the parameters in WEDM process. The experiment is carried out in the wire EDM machine using brass wire as the electrode, Inconel 718 as the work-piece material and distilled water as the dielectric. The design array is created by using Design of Experiment in a Taguchi L16 orthogonal array repeated once. The gear has a base diameter of 20 mm, addendum diameter of 22.5 mm and a pressure angle of 20º with 16 numbers of teeth. The machining operation is carried out by taking 3 input parameters at 4 different levels each. The output parameters such as Material Removal rate and Kerf width were obtained and optimized using TOPSIS method to know the optimum setting. Microstructural analysis of both material and wire were studied to know the various defects during the machining operation. Various plots were obtained to know the effects of the process parameters in WEDM. A regression model was also obtained to validate the statistical model values with the experimental. ANOVA table and Response table were carried out to know the significant parameters and rank respectively in the Wire EDM process. Surface roughness, Addendum and Tooth width of gears were also found out at the optimum settings. The optimum setting of the gear obtained can be used to produce high quality gears and can also be applied for future findings.

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“…Authors studied the influence of different sized wire diameter on surface integrity of Inconel 706 material. Small diameter wire produces better surface finish, smaller RCLT, and reduce machining time [61]. The surface burning property of Cr12 steel material was analysed for different machining conditions [62].…”

Section: Surface Characteristicsmentioning

confidence: 99%

A progress review in wire electrical discharge machining process

Balan¹,

Giridharan²

2017

Int. J. Automot. Mech. Eng.

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Wire Electrical Discharge Machining (WEDM) is an electrothermal non-traditional machining process used for machining electrically conductive materials that are difficult to machine. Material removal in WEDM is by means of spark erosion. WEDM is proven to be the alternative for producing complex parts with higher degree of dimensional accuracy and better surface finish. Over the years, a significant amount of research was globally carried out to explore the WEDM process capability. This paper aims to explore the research work carried on parametric influence of WEDM process variables on various output performance measures. The paper also highlights various modelling techniques to predict optimal machining conditions and explore the feasibility of applying WEDM process to machine advanced materials. Combined technology that benefits from the virtues of WEDM and conventional method is also highlighted in this paper. The final section discusses the development and possible research trend in WEDM process.

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Effect of wire diameter on surface integrity of wire electrical discharge machined Inconel 706 for gas turbine application

Cited by 63 publications

References 16 publications

A Novel Approach to Improve WEDM Performance on Inconel718, by Using Small Diameter Zinc Coated Wire

A Novel Approach to Improve WEDM Performance on Inconel718, by Using Small Diameter Zinc Coated Wire

A multi objective optimization of gear cutting in WEDM of Inconel 718 using TOPSIS method

A progress review in wire electrical discharge machining process

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