Modelling and Optimization of Performance Characteristics in Electrical Discharge Machining on Titanium Alloy

Khan, Md. Ashikur Rahman

doi:10.3329/jme.v43i1.15778

Cited by 2 publications

(2 citation statements)

References 17 publications

(15 reference statements)

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“…Experiments are carried out with the electrode material, the spark gap and the depth of cut as the manipulators and the surface roughness, hardness and dimensional variations as the responses. Design of experiments is a proven tool for analyzing the interactions between the manipulated variables and their responses [8] and has been used here for similar analysis of the input data and the results of the experiments.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Electrode Material for EDM Die-sinking of Titanium Alloy Grade 5 - Ti6Al4V

Suresh

Jamil

Sulaiman

et al. 2016

International Journal on Advanced Science, Engineering and Information Technology

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Titanium alloy grade 5, Ti6Al4V, is extensively gaining importance in the industrial environment, specifically in aerospace, medical and automotive domains, mainly due to its exceptional blend of mechanical properties like high hardness which is further heat treatable, high strength-to-weight ratio which makes it light, high corrosion and temperature resistance etc. However, the same properties undervalue Ti6Al4V as a conventionally difficult-to-machine material. Rapid tool wear, excessive heat generation, dimensional instability and loss of surface integrity are the issues that plague the conventional machining of Ti6Al4V. In view of these facts, non-traditional machining processes like electron discharge machining (EDM) -die sinking and wire cut prove to be a substitute for the conventional machining. In this study, an experimental optimization of EDM die-sinking electrode materials among copper, brass and graphite, is carried out. Experimental design is created using a statistical tool and actual machining is carried out to record the surface roughness, variations on the surface hardness and dimensional stability. Quality evaluation and statistical analysis substantiates graphite electrodes to produce better surface finish-Ra 2.05microns with minimal dimensional variation-less than 10%when operated at minimum spark gaps. It is inferred that graphite electrodes exhibit higher resistivity towards current than its counterparts thus passing minimum spark energy preventing excessive self-wear and a dimensionally accurate work piece. The depth of machining highly impacts the variations on the surface hardness post machining.

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Section: Introductionmentioning

confidence: 99%

Optimization of Electrode Material for EDM Die-sinking of Titanium Alloy Grade 5 - Ti6Al4V

Suresh

Jamil

Sulaiman

et al. 2016

International Journal on Advanced Science, Engineering and Information Technology

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“…This research study aims to determine the parameters that mainly affect the surface finish of a product in terms of dimensional accuracy and surface roughness and to determine the parameters that control them. Inoor Zaman Khan et al [3] Used Taguchi techniques based on an (L-18 hybrid) orthogonal array. The impacts of different (WEDM) cutting settings on wire crater depth, electrode wear rate, and surface roughness were investigated.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations of Surface Finish Generated by Wire Electrical Discharge Machining

Hadi

Khleif

2022

MSF

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Abstract. This study aims to investigate wire electrical discharge machining of copper alloys. Extensive research was done to design an optimum cutting method with adequate wire balance to achieve the requisite surface smoothness and geometrical dimensional correctness. Parameters were used in this work to simulate the process pulse-on time, pulse-off time, peak current, servo feed-rate, servo-volt, wire-feed rate, wire tension, and water pressure. For each given treatment requirement, the primary impacting elements are highlighted. The results are the best standard settings that have been designed to satisfy the client’s varied developing needs. A low pulse achieves superior surface polish on time and a high pulse off time. According to the (ANOVA) findings, the most significant cutting parameter is the pulse on-time (Ton), which affects surface roughness by (42.922)%, followed by pulse off time (Toff), which affects surface roughness by (24.860)%, and servo feed (SF), which affects surface roughness by (6.850)%. The impact of the process variables was wire tension on response characteristics, dimensional deviation, cutting rate, and surface roughness.

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Modelling and Optimization of Performance Characteristics in Electrical Discharge Machining on Titanium Alloy

Abstract: Electrical discharge machining (EDM

Cited by 2 publications

References 17 publications

Optimization of Electrode Material for EDM Die-sinking of Titanium Alloy Grade 5 - Ti6Al4V

Optimization of Electrode Material for EDM Die-sinking of Titanium Alloy Grade 5 - Ti6Al4V

Experimental Investigations of Surface Finish Generated by Wire Electrical Discharge Machining

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