Review of Sustainability Issues in Non-Traditional Machining Processes

Rajurkar, K. P.; Hadidi, Haitham; Pariti, J.; Reddy, G. Ravi Shankar

doi:10.1016/j.promfg.2016.12.106

Cited by 30 publications

(21 citation statements)

References 18 publications

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“…Non-traditional machining (NTM) processes are the electro thermal process, in which there is no physical contact between the tool and work piece. In the NTM process, several forms of energies are used to remove the unwanted material from the work piece surface [1]. Among NTM processes, electrical discharge machining is widely used in the several industrial applications due its precision and quite economic cost [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of sintered electrode on microhardness and microstructure in electro discharge deposition of magnesium alloy

Elaiyarasan

Satheeshkumar²,

Senthilkumar³

2020

Journal of the Mechanical Behavior of Materials

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In this study, an endeavour have been made to depositing the electrode materials over the surface of the magnesium alloy using electrical discharge machining (EDM) with WC-Cu powder compacted sintered electrode. Various process parameters such as compaction load, discharge current and pulse on time are selected to carry out the experiment in order to attain the maximum material migration rate (MMR) or deposition rate and microhardness (MH). It was concluded that the MMR and MH increased with increase in discharge current and pulse on time at low compacted electrode but it is decreased at lower discharge current and pulse on time. Highest MMR and MH were attained successfully at partial sintered low compaction load electrode. Microstructure evaluation has been carried out on deposited surface using scanning electron microscopy (SEM) and presence of electrode element in the deposited surface was confirmed by energy dispersive spectroscopy (EDS). Defects mechanism such as globules and craters are formed during EDC with high current and pulse on time respectively, which diminishes the surface roughness. It was observed that the compaction load is the influence parameter on the MMR and MH.

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Section: Introductionmentioning

confidence: 99%

Effect of sintered electrode on microhardness and microstructure in electro discharge deposition of magnesium alloy

Elaiyarasan

Satheeshkumar²,

Senthilkumar³

2020

Journal of the Mechanical Behavior of Materials

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“…Singh et al developed an expert system for the performance evaluation of small and medium enterprises [17]. With a greater focus on machining technologies, we find the work of Rajurkar et al, which explored how to ensure sustainability and optimize non-traditional machining processes [18].…”

Section: Introductionmentioning

confidence: 99%

An Approach to Sustainable Metrics Definition and Evaluation for Green Manufacturing in Material Removal Processes

Ayabaca

Vila

2020

Materials

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Material removal technologies should be thoroughly analyzed not only to optimize operations but also to minimize the different waste emissions and obtain cleaner production centers. The study of environmental sustainability in manufacturing processes, which is rapidly gaining importance, requires activity modeling with material and resource inputs and outputs and, most importantly, the definition of a balanced scorecard with suitable indicators for different levels, including the operational level. This paper proposes a metrics deployment approach for the different stages of the product life cycle, including a conceptual framework of high-level indicators and the definition of machining process indicators from different perspectives. This set of metrics enables methodological measurement and analysis and integrates the results into aggregated indicators that can be considered for continuous improvement strategies. This approach was validated by five case studies of experimental testing of the sustainability indicators in material removal operations. The results helped to confirm or modify the approach and to adjust the parameter definitions to optimize the initial sustainability objectives.

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“…Few available review articles summarize the past work towards environmentally friendly EDM; 10 underwater, under-liquid, and water-assisted LBM; 11,12 and marginally brief the sustainability concerns in nonconventional machining. 13…”

Section: Introductionmentioning

confidence: 99%

“…A review paper by Rajurkar et al. 13 briefly reports sustainability issues in EDM and ECM. Generation of large amount of sludge, electrolyte splashing, skin, and eye contamination are identified as the major sustainability issues in electrochemical machining process.…”

Section: Introductionmentioning

confidence: 99%

Developments in nonconventional machining for sustainable production: A state-of-the-art review

Gupta

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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Nonconventional or advanced machining processes such as electric discharge machining, electrochemical machining, abrasive water jet machining, and laser beam machining have been widely used as a viable alternate to the conventional processes to manufacture high-quality engineered parts having certain typical features. In spite of their special features, wider acceptance, and use, they suffer from certain inherent limitations with regard to sustainability such as high consumption of energy and resources; generation of toxic liquid, gases, and solid wastes; risk for health and safety; air pollution; generation of waste and its disposal problems; and workpiece contamination and thermal damage to the parts being produced. It is found that these factors all adversely affect the environment to a certain extent. Innovative sustainable techniques such as dry, near-dry, and green electric discharge machining; green and hybrid electrochemical machining; ice-jet machining; and eco- and underwater laser beam machining, etc. have been developed to address sustainability challenges and greatly benefited with improvements in quality, productivity, and sustainability. This review article first introduces four major nonconventional machining processes, discusses their inherent sustainability issues and challenges, and presents state-of-the-art review of the work conducted using sustainable innovative techniques and strategies with an aim to encourage academics, researchers, and engineers for research and developments in order to establish the field further. The literature review offered in this article is based on over 80 articles published from 1975 to 2017. Finally, the article ends up with concluding remarks and recommending possible avenues to stimulate future research.

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Review of Sustainability Issues in Non-Traditional Machining Processes

Cited by 30 publications

References 18 publications

Effect of sintered electrode on microhardness and microstructure in electro discharge deposition of magnesium alloy

Effect of sintered electrode on microhardness and microstructure in electro discharge deposition of magnesium alloy

An Approach to Sustainable Metrics Definition and Evaluation for Green Manufacturing in Material Removal Processes

Developments in nonconventional machining for sustainable production: A state-of-the-art review

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