This paper outlines the findings of the investigational studies performed to explore the impact of the electrical discharge machining method and input variables on the properties of the output parameters. EDM allows the machining of very hard and high temperature resistant metals and alloys such as super-alloys, carbides, ceramic, composites and heat-resistant alloy. However, these products are challenging to produce owing to the need for higher cutting strength and large machine usage costs. EDM offers a minimal machining force with an appropriate tooling expense is a promising non-conventional machining method for machining Composites. As electrical erosion method is commonly used for the manufacturing of composites with further uses in the construction, aircraft and automotive industries. Composites have desirable physical as well as mechanical properties such as light weight, high specific modulus, higher toughness and Strength and thermal resilience. Due to wide range of application of composites nowadays the present analysis addresses the EDM and its input and output parameters such as Ton, T off and Discharge Current, etc. on the MRR and SR especially for the composites.The goal of this paper is to examine past work and to establish a path forward for study.

COVID-19 has brought a lot of turbulence and instability among manufacturing organizations. This pandemic has affected all three types of manufacturing operations- subtractive, additive and forming manufacturing processes. In this paper we have discussed how additive manufacturing has played a role in this time of crisis. There has been an increased adoption of additive manufacturing to overcome the demand created by this pandemic. The number of actors in additive supply chain have reduced and thus in the time of epidemics that has been a boom and has helped manufacturers relying on additive manufacturing to be agile and react in nearly no time to the requirements. The same has been found its use primarily in manufacturing healthcare facilities in short notices along with producing parts of medical equipment like ventilators.

Additive manufacturing (AM) is a rapidly growing technology with promising results and challenges. The aim of this study is to optimize the process parameters of fused deposition modeling (FDM) by exploring the wear performance of Polylactic acid (PLA). In this work, variation of process parameters like layer thickness, orientation and extruder temperature has been investigated. Based on these parameters wear specimen (accordance to ASTM G99) was printed by using FDM. The wear behavior of polymer pin under low sliding speed was investigated. Taguchi Design of experiments by using L9 orthogonal array is applied to optimize the process parameters at which minimum wear rate is obtained and the same has also been investigated by using analysis of variance (ANOVA) and artificial neural network (ANN) technique for rigorous validation / optimization. Results shows that build orientation have major influence on the wear performance of polymer pin. The paper is presented with the display of results, discussion, and conclusions drawn.

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Additive manufacturing (AM) is a method in which three-dimensional structures are successively laid down to create a solid object. The inherent advantages of AM technology are successfully drafted and exploited by the different organization across the globe. During the time of pandemic i.e. COVID-19, 3D printing has come to rescue and has been used for manufacturing critical medical supplies. 3D printing has been used in manufacturing some of the critical items like ventilators valves, face shields, swabs, oxygen valves, hand sanitizer holders, 3-DP lung models, etc. The main reason for its success has been the ability of 3D printing to print locally by using digital designs and thus reducing the number of supply chain actors. Also, the ability of 3D printing to manufacture/print complex geometrical designs locally is the main reason for its successful adoption during COVID-19. In this paper, we have discussed how AM has come to the forefront in fighting this pandemic. Various AM techniques have played a critical role in bridging the supply chain gap in the medical industry and locally printing critical devices. There were certain apprehensions before the pandemic along with slow adoption but this pandemic has also increased the adoption of AM due to its ability to overcome the demand created by COVID-19.

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Cellular manufacturing system has been proved a vital approach for batch and job shop production systems. Group technology has been an essential tool for developing a cellular manufacturing system. The paper aims to discuss various cell formation techniques and highlights the significant research work done in past over the years and attempts to points out the gap in research.

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