Modern Machining Processes: Theory and Applications by P. C. Pandey and H. S. Shan
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Modern Machining Processes presents unconventional machiningmethods ... Processes likeAbrasive Jet Machining Water Je. ...By PC. Pandey, H S. Shan.. Some of the modern manufacturing processesare the high speed, hard, high accuracy machining.... Water JetMachining (WJM) is a non-traditional machining process based onmechanical energy used ... Book, H. S. Shan andP. C. Pandey..Research process, Mathematical tools for analysis, developing aresearch ... P.C. Pandey, and H.S. Shan, ModernMachiningProcesses,Tata McGraw-Hill.. Modern Machining Processes (English, Hardcover,Pandey P. C.) Summary Of TheBook About The Authors P. C.Pandey H. S. Shan ...
Mechanical advanced machining process: Introduction, Mechanicsof metal removal ... 1 Modern Machining Process, Pandeyand Shan,Tata McGraw Hill. 1980.. In ranking the feasible alternatives, theselection procedure uses a combination of two ...Pandey, P. C.,Shan, H. S. Modern Manufacturing Processes, 1988 .... I want Modernmachining processes by P.C.Padey &H.S.Shah... ... plz post "Pandey P.C. and Shan H.S. Modern Machining Processes TataMcGraw-Hill, New ... ConventionalMachining Processes and MachineTools Pdf plz post Vijay.. May 24th, 2019 - Modern machiningprocess Pandey and ShanTata McGraw Hill 1st Edition Due to ... PDFAdvanced Machining Processes Nontraditional and. Process By PandeyAnd Shan.Pandey Pdf - pdf Book ... Modern Machining Processespresents unconventional machining methods which are gradually...
Electrochemical Spark Machining (ECSM) is applicable to machine the materials which are non-conducting. The present research work extended the application area of ECSM process from non-conducting materials to semiconducting materials i.e. silicon carbide (SiC). In order to enhance material removal rate (MRR) and to reduce the entrance oversize (OS) as well as surface roughness (SR), the magneto-hydrodynamic (MHD) convection approach is utilized. The magnetic field (MF) produces Lorentz forces during electrolysis process. This MF assisted travelling-wire electrochemical spark machining (TW-ECSM) process provides better flushing in narrow gap between work material and tool electrode by clearing the zone from debris particles to obtain a stable spark. It is evident from results that presence of magnetic field improved MRR from 19.15% to 200% and reduced SR and OS from 16.86% to 48.58% and from 11.37% to 21.27% respectively.
UNIT 1:Mechanical processes, process selection, mechanics of cutting, metal removal rate, cuttingtool system design, ultrasonic machining, abrasive jet machining, water jet machining, ,effect of parameters and variables, applications and limitations, recent developments inmechanical processes.
UNIT 2:Electrochemical and chemical metal removal processes, electrochemical machining[ECM],elements of ECM, power source and control system, electrolytes, tool work system,chemistry of the process, tool design and metal removal rate, process faults, materialremoval and surface finish, electrochemical grinding, electrochemical deburring,electrochemical honing, chemical machining,
UNIT 3: Thermal metal removal processes, electric discharge machining[EDM], spark erosion,mechanism of metal removal, spark erosion generator, electrod feed control, vibratingelectrode system, dielectric fluid, flushing, accuracy, plasma arc machining[PAM], nonthermal generation of plasma, mechanisms and parameters, equipments, electron beammachining[EBM],generation and control of electron beam, theory and process capabilities,neutral particle etching, laser beam machining, hot machining, methods of local heating,toollie and production rate.
Mechanical erosion-based drillings are abrasive water jet drilling (AWJD) and ultrasonic drilling (USD). In these processes, materials are removed by the mechanical erosion of work material by high-pressure slurry (abrasive particles mixed with water). AWJD can produce miniature-sized holes on metallic and non-metallic materials. USD is used for machining miniature-sized holes on conductive and non-conductive materials having a hardness of more than 40 HRC. In thermoelectric erosion drilling methods, thermal energy is utilized to remove materials by melting and vaporization. These methods include ram-based spark-erosion machining (SEM), spark-erosion drilling (SED), and laser drilling. SEM and SED are used to produce miniature-sized holes on electrically conductive materials irrespective of their hardness, while laser drilling is used to produce miniature-sized holes on non-reflective metallic materials. The material removal rate in laser drilling is higher than in SED and SEM processes. The micro versions of SEM and SED are micro-spark-erosion machining (µ-SEM) and micro-spark-erosion drilling (µ-SED). Electrochemical drilling (ECD) is used to produce microholes on workpieces by ion displacement. It involves anodic dissolution where an electrolytic cell is formed by a tool (cathode) and workpiece (anode) surrounded by the continuous flowing electrolyte. In chemical drilling (CHD) methods, miniature-sized holes are produced by the chemical action of the corrosive agents.
Micro spark erosion machining (µ-SEM) is used to make a different type of microhole by using similar shapes and sizes of fabricated tool electrodes. In the µ-SEM process, the non-rotating tool electrode moves downward to make a microhole on the workpiece. Figure 1 shows the schematic diagram of the µ-SEM setup. µ-SEM has the potential to fabricate circular and non-circular through and blind microholes, such as square, rectangular, and triangular as shown in Figure 2.
The major advantages of µ-SED are (i) the ability to drill deep high-aspect-ratio (HAR) fine holes, (ii) the ability to produce accurate fine circular holes, (iii) no burr formation, thus eliminating the secondary finishing process, (iv) ability to drill high precision microscopic-holes, (v) the absence of mechanical stresses, (vi) the ability to produce holes on any kind of materials irrespective of their hardness, (vii) the ability to produce holes on thin and fragile materials; (viii) the ability to drill holes at a certain angle, (ix) the high material removal rate; and (x) unattended machining for a longer period.