Multiple Parameter Optimization by Wire Electrochemical Discharge Machining Process on Quartz Glass

The hard, brittle, and electrically non-conducting industrial materials like quartz glass pose a challenge in the field of conventional machining. Even some electrically assisted non-conventional machining methods find difficulty to develop features on su

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1 Introduction Quartz glass is a pure form of SiO2 which has extraordinary mechanical, thermal, and optical properties like transmissibility in UV and IR wavelengths, thermal shock resistance, low thermal expansion coefficient, good resistance to chemicals, and outstanding electrical insulator courtesy of which it finds itself in various applications in optical, water purification, photovoltaic, chemical, pharmaceutical, and semiconductor industries. Quartz being hard, brittle, and non-conductive in nature proves a little difficult to machine through conventional machining processes because of crack propagation, fracture, poor surface texture, cutting through grain boundaries, etc. [1]. Also, developing microfeatures seems quite must be cumbersome through conventional processes. Entering into picture, non-conventional machining processes also have some inherent disadvantages. For example, some non-conventional machining processes like EDM, ECM, W-EDM cannot machine non-conductive materials like quartz used in this case. Other processes like ultrasonic machining, abrasive jet machining, laser beam machining, and ion beam machining can machine electrically non-conductive materials but not without giving poor surface finish, inferior dimensional accuracy, inadequate material removal rate, heat-effected zone, etc. Laser beam R. O. Vaishya Department of Production and Industrial Engineering, Punjab Engineering College (Deemed to Be University), Chandigarh 160012, India A. D. Oza (B) Department of Industrial Engineering, Pandit Deendayal Petroleum University, Gandhinagar 382007, India e-mail: [email protected] A. Gupta Department of Mechanical Engineering, KIET—Group of Institutions, Delhi-NCR, Ghaziabad 201206, India © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021 H. K. Dave and D. Nedelcu (eds.), Advances in Manufacturing Processes, Lecture Notes in Mechanical Engineering, https://doi.org/10.1007/978-981-15-9117-4_6

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can machine hard, brittle, and non-conducting materials but it is expensive to do it with precision [2]. Abrasive water jet machining can be used for the same purpose but a taper cut is unavoidable [3]. Utilizing the benefits of two or more non-conventional machining processes we can develop a hybrid machining procedure which can assist in machining of electrically non-conductive materials. One such process is ECDM and the method of which this content would be is WECDM [4–7]. The basic block diagram of WECDM setup is shown in Fig. 1. Wang et al. [8] made a vertically operating WECDM setup and machined quartz glass with aid of oil film insulation with diamond wire sawing using vertical WECDM setup. Yadav et al. [9] performed WECSM on alumina epoxy nanocomposites (AENC) and investigated effect of applied voltage, electrolytic concentration, pulse on-time, and pulse off-time on quartz. Rattan et al. [10] used a magneto hydrodynamic (MHD) convection process to increase the electrolyte flow in TW-ECSM process. Paul and Hiremath [11] pe