Influence of Machine Feed Rate in WEDM of Titanium Ti-6Al-4V with Constant Current (6A) Using Brass Wire

Alias, Aniza; Abdullah, Bulan; Abbas, Norliana Mohd

doi:10.1016/j.proeng.2012.07.387

Cited by 74 publications

(43 citation statements)

References 19 publications

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“…The kerf width varies depending on the parameters used during the machining. Alias et al 25 proved that as the feed ratio increases, the kerf width decreases and, as a result of the experiments, low feed ratios increased the kerf width. Somashekhar and Ramachandran 26 did not recommend machining at high feed ratios as high feed rates increase the distortions in the kerf width.…”

Section: Effect Of the Cutting Parameters On The Surface Roughnessmentioning

confidence: 92%

WEDM cutting of Inconel 718 nickel-based superalloy: effects of cutting parameters on the cutting quality

Çaydaş¹,

Ay²

2016

Mater. Tehnol.

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Investigations of the effects of machining parameters on the cutting quality of wire-electrical-discharge-machining (WEDM) cutting of an annealed Inconel 718 nickel-based superalloy are described in this paper. The cutting-quality characteristics considered are the kerf width, the recast-layer thickness and the surface roughness of the cut specimens. The essential process input parameters were identified as the pulse-on time, the pulse-peak current, and the injection pressure. The analysis of variance (ANOVA) technique was used to find the parameters affecting the cut quality. The regression analysis was used for the development of empirical models able to describe the effects of the process parameters on the quality of the WEDM cutting. The ANOVA results show that the pulse-on time and the pulse-peak current are significant variables affecting the surface roughness of wire-EDMed Inconel 718. The surface roughness, the kerf width and the recast layer of the test specimens increased as these two variables increased. The measured and modelled results were in good agreement with respect to the correlation coefficients Ra, RLT and Kü. Keywords: wire-electrical-discharge machining (WEDM), Inconel 718, recast layer, surface morphology, analysis of variance V~lanku je opisana raziskava vplivov parametrov obdelave na kvaliteto reza, z`i~no elektroerozijo (WEDM) rezane`arjene nikljeve superzlitine Inconel 718. Upo{tevane so bile karakteristike reza, kot je {irina reza, debelina nataljenega sloja in hrapavost povr{ine odrezanega vzorca. Ugotovljeno je, da so bistveni vhodni parametri procesa impulzi v~asu, tok vrha impulza in tlak vbrizgavanja. Za iskanje parametrov, ki vplivajo na kvaliteto reza je bila uporabljena tehnika analiza variance (ANOVA). Regresijska analiza je bila uporabljena za razvoj empiri~nega modela, ki lahko opi{e vpliv procesnih parametrov na kvaliteto WEDM rezanja. Rezultati iz ANOVE ka`ejo, da sta impulz v~asu in tok vrha impulza pomembni spremenljivki pri rezanju Inconela 718 z`i~no elektroerozijo. Hrapavost povr{ine, {irina zareze in debelina pretaljene plasti so nara{~ali pri preizkusnih vzorcih,~e sta nara{~ali ti dve spremenljivki. Izmerjeni in modelirani rezultati so se dobro ujemali s korelacijskimi koeficienti Ra, RLT in Kü.

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Section: Effect Of the Cutting Parameters On The Surface Roughnessmentioning

confidence: 92%

WEDM cutting of Inconel 718 nickel-based superalloy: effects of cutting parameters on the cutting quality

Çaydaş¹,

Ay²

2016

Mater. Tehnol.

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“…Based on the coupled transient thermal and mechanical analysis, both the threedimensional temperature and the stress distribution in the micro wire electrode are determined. As a result, the tension of the micro wire electrode during the WEDM process can be optimized in according to the discharge energy, which is sampled and fed back to the tension control system in real time [6][7][8][9][10]. Then the development of the optimal tension control system is to be characterized by the form of masterslaver structure makes it possible to keep the wire tension optimal in the process of WEDM.…”

Section: Fuzhu Hanmentioning

confidence: 99%

Analysis of Wire Electrode Discharge Machining Process using FEA

Singh¹,

Jain²,

Sk³

2017

J Appl Mech Eng

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The Wire Electro Discharge Machining (WEDM) process is a violent thermal process where literally thousands of electrical discharges are produced in a fraction of a single second in order to erode a certain volume of metal workpiece. The process is mostly and efficiently used in situations where intricate complex shapes need to be machined in very hard materials (such as hardened tool steel, CBN, Ceramic etc). However, the process generates surfaces that have poor properties such as high tensile residual stresses, high surface roughness, presence of micro-cracks and microvoids. These properties vary with different levels of the main conventional machining parameters. The aim of this FEA simulation is to present a transient thermal and structural simulation work that has been a three-dimensional finite element model with two new materials to predict the temperature distribution, Total heat flux at different pulses of time as well as stress distribution in WEDM wire electrode. Thermal stress developed after the end of the spark and structural stresses developed due to tension in wire electrode. The effect on significant machining parameter pulseon-time has been investigated and found that the peak temperature is sharply increases with the parameters. Wire electrical discharge machining process is a mostly used non-conventional material removal processes.

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“…A good number of researches have been carried out in this area to find better optimal parameters while machining Titanium and its alloys [8][9][10]. Different types of optimization techniques are used by different authors for optimization of machining parameters.…”

Section: Introductionmentioning

confidence: 99%

Study of wire-electrical discharge machining parameters of titanium alloy by using taguchi method

Prasad¹,

Ramji²,

Kumar³

2018

IJET

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Machining of Titanium alloys is difficult due to their chemical and physical properties namely excellent strength, chemical reactivity and low thermal conductivity. Traditional machining of such materials leads to formation of continuous chips and tool bits are subjected to chatter which leads to formation of poor surface on machined surface. In this study, Wire-EDM one of the most popular unconventional machining process which was used to machine such difficult-to-cut materials. Effect of Wire-EDM process parameters namely peak current, pulse-on-time, pulse-off-time, servo voltage on MRR and SR was investigated by Taguchi method. 0.25 mm brass wire was used in this process as electrode material. A surface roughness tester (Surftest 301) was used to measure surface roughness value of the machined work surface. A multi-response optimization technique was then utilized to optimize Wire-EDM process parameters for achieving maximum MRR and minimum SR simultaneously.

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Influence of Machine Feed Rate in WEDM of Titanium Ti-6Al-4V with Constant Current (6A) Using Brass Wire

Cited by 74 publications

References 19 publications

WEDM cutting of Inconel 718 nickel-based superalloy: effects of cutting parameters on the cutting quality

WEDM cutting of Inconel 718 nickel-based superalloy: effects of cutting parameters on the cutting quality

Analysis of Wire Electrode Discharge Machining Process using FEA

Study of wire-electrical discharge machining parameters of titanium alloy by using taguchi method

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