Yazar "Gupta, M. K." seçeneğine göre listele

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    Implementation of green cooling/lubrication strategies in metal cutting industries: A state of the art towards sustainable future and challenges
    (Elsevier, 2023) Korkmaz, Mehmet Erdi; Gupta, M. K.; Ross, Nimel Sworna; Sivalingam, Vinothkumar
    While the metal cutting industrial sector is essential for global economic growth, it also has a major impact, such as cutting tools, cooling and lubrication environments, improved cutting parameters, etc., on the world's natural resources and ecosystems. The increasing demand for goods and services has resulted in a paradigm of linear production and consumption that cannot be maintained over the long term. The need to transition towards green or sustainable manufacturing is necessary for a variety of reasons, including issues relating to occupational health, legislation governing the environment, and hazardous or dirty working conditions for employees. However, the most important reason is the waste cost associated with utilising an excessive amount of cutting fluid in metal cutting sectors. As a result, this article examines a sustainable manufacturing system built in the metal cutting sector and offers a comprehensive guide for the industrial sector. Organisational tactics, indications, and potential roadblocks to execution are all given special attention in this review article. Further, the review article investigates the obstacles that stand in the way of environmentally friendly production. In addition to this, it investigates the criteria that are used to quantify development towards more sustainable production techniques and provides a new strategy for evaluating initiatives of this nature. It has been concluded that this indepth analysis helps academics and researchers by detailing the green machining techniques that have been put into practise in many machining domains to ensure a clean and secure working environment.
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    A mathematical approach of evaluating sustainability indicators in milling of aluminium hybrid composite by different eco-friendly cooling strategies
    (Elsevier, 2023) Sivalingam, Vinothkumar; Zhou, Qian; Selvam, Baskaran; Sun, Jie; Pandiyan, Karthik; Gupta, M. K.; Korkmaz, Mehmet Erdi
    The purpose of this study is to evaluate the sustainability indicators of aluminium hybrid composite material (AA6082 + 3wt%SiC+1wt .%MoS2) under different eco-friendly cooling strategies such as dry, MQL, LCO2, MQL + LCO2. A variety of social, economic, and environmental aspects of sustainability indicators such as Total cycle time (TTCT), productivity, Total machining cost (CT) Energy consumption (Ec), Carbon emission analysis (Cee), Cutting force (CF) and Surface Roughness (Ra) are considered in this study. A novel sustainable approach of overall equipment effectiveness (OEE) is included to evaluate the true productivity under different cooling en-vironments. By comparing all the machining conditions, it was found that hybrid (CO2 + MQL) resulted the highest OEE as 95.63% and very low carbon emission of 0.6 kg-CO2 under higher cutting speed of 120 m/min and feed rate of 0.1 mm/rev at 1 mm depth of cut.
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    Potential use of cryogenic cooling for improving the tribological and tool wear characteristics while machining aluminum alloys
    (Elsevier Sci Ltd, 2023) Gupta, M. K.; Nieslony, P.; Korkmaz, M. E.; Krolczyk, G. M.; Kuntoglu, M.; Pawlus, P.; Jamil, M.
    Understanding the process of tool wear in the initial and steady wear stages is crucial for ensuring the dimen-sional accuracy and surface quality of the workpiece, especially during the finishing step. In order to improve the tribological and tool life behaviors when machining the AA2024-T351 alloy, the current paper focuses on the potential use of cryogenic cooling conditions. Here, the experiments were performed under dry, minimal quantity lubrication (MQL), liquid nitrogen (LN2), carbon dioxide (CO2), conditions. The critical tool wear factors in terms of geometrical aspects and physical phenomena were investigated under sustainable cooling environments. The results prove that cryogenic cooling is helpful in improving tool life with good tribological characteristics.