Machining of titanium and titanium alloys by electric discharge machining process: a review

Gupta, Vivudh; Singh, Brahmjit; Mishra, R. K.

doi:10.1504/ijmmm.2020.10027192

Cited by 5 publications

(7 citation statements)

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“…Saedon et al [ 30 ] attributed increasing MRR with increasing T on and current to the reduced dynamic shear strength of Ti alloy due to higher thermal influence in the machining region. The outcome of T off on MRR shows a decreasing trend with a rise in T off because of reduced spark ejection time and less MRR [ 9 , 54 ]. Thus, with an increase in T off , MRR is decreasing.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, with an increase in T off , MRR is decreasing. Moreover, the slope indicates that it has a great effect on MRR; a slight increase in T off leads to a decrease in MRR [ 9 ]. The positive dependency/correlation/relationship of MRR with T on and negative dependency with T off is also reported by Arikatla et al [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

“…This in turn leads to increased tool wear rate and eventually tool failure. Moreover, titanium is chemically reactive at elevated temperatures, which may cause the tool to weld with the metal, leading to its premature failure [ 9 ]. Titanium has a low elastic modulus responsible for the deflection of job, chatter, and vibrations while machining.…”

Section: Introductionmentioning

confidence: 99%

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Integration of Fuzzy AHP and Fuzzy TOPSIS Methods for Wire Electric Discharge Machining of Titanium (Ti6Al4V) Alloy Using RSM

et al. 2021

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Titanium and its alloys exhibit numerous uses in aerospace, automobile, biomedical and marine industries because of their enhanced mechanical properties. However, the machinability of titanium alloys can be cumbersome due to their lower density, high hardness, low thermal conductivity, and low elastic modulus. The wire electrical discharge machining (WEDM) process is an effective choice for machining titanium and its alloys due to its unique machining characteristics. The present work proposes multi-objective optimization of WEDM on Ti6Al4V alloy using a fuzzy integrated multi-criteria decision-making (MCDM) approach. The use of MCDM has become an active area of research due to its proven ability to solve complex problems. The novelty of the present work is to use integrated fuzzy analytic hierarchy process (AHP) and fuzzy technique for order preference by similarity to ideal situation (TOPSIS) to optimize the WEDM process. The experiments were systematically conducted adapting the face-centered central composite design approach of response surface methodology. Three independent factors—pulse-on time (Ton), pulse-off time (Toff), and current—were chosen, each having three levels to monitor the process response in terms of cutting speed (VC), material removal rate (MRR), and surface roughness (SR). To assess the relevance and significance of the models, an analysis of variance was carried out. The optimal process parameters after integrating fuzzy AHP coupled with fuzzy TOPSIS approach found were Ton = 40 µs, Toff = 15 µs, and current = 2A.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integration of Fuzzy AHP and Fuzzy TOPSIS Methods for Wire Electric Discharge Machining of Titanium (Ti6Al4V) Alloy Using RSM

et al. 2021

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“…Electrical discharge machining is one of the nontraditional machining processes adopted by the industries for machining hard conductive materials [1][2][3] . The control of spark energy becomes a critical factor that affects the material removal process and surface topographywhen the EDM process is used for the creation of micro features.…”

Section: Powder Mixed Edmmentioning

confidence: 99%

Experimental Investigations on µED Milling of Inconel 718 with Nano SiC Abrasive Mixed Dielectric

Elumalai¹,

Gowri

Hariharan

et al. 2022

Mat. Res.

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“…These above stated examples focused on one or more aspects of machining techniques that involve direct contact between cutting tool and the workpiece. In other reviews, Gupta et al [24] among other researchers [25] have focused on machining techniques that do not require contact between the tool and the workpiece.…”

Section: Introductionmentioning

confidence: 99%

An overview of conventional and non-conventional techniques for machining of titanium alloys

et al. 2020

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Machining is one of the major contributors to the high cost of titanium-based components. This is as a result of severe tool wear and high volume of waste generated from the workpiece. Research efforts seeking to reduce the cost of titanium alloys have explored the possibility of either eliminating machining as a processing step or optimising parameters for machining titanium alloys. Since the former is still at the infant stage, this article provides a review on the common machining techniques that were used for processing titanium-based components. These techniques are classified into two major categories based on the type of contact between the titanium workpiece and the tool. The two categories were dubbed conventional and non-conventional machining techniques. Most of the parameters that are associated with these techniques and their corresponding machinability indicators were presented. The common machinability indicators that are covered in this review include surface roughness, cutting forces, tool wear rate, chip formation and material removal rate. However, surface roughness, tool wear rate and metal removal rate were emphasised. The critical or optimum combination of parameters for achieving improved machinability was also highlighted. Some recommendations on future research directions are made.

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Machining of titanium and titanium alloys by electric discharge machining process: a review

Cited by 5 publications

References 0 publications

Integration of Fuzzy AHP and Fuzzy TOPSIS Methods for Wire Electric Discharge Machining of Titanium (Ti6Al4V) Alloy Using RSM

Integration of Fuzzy AHP and Fuzzy TOPSIS Methods for Wire Electric Discharge Machining of Titanium (Ti6Al4V) Alloy Using RSM

Experimental Investigations on µED Milling of Inconel 718 with Nano SiC Abrasive Mixed Dielectric

An overview of conventional and non-conventional techniques for machining of titanium alloys

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