Electrical Discharge Machining (EDM) : types, technologies and a.pplications / M. P. Jahan, editor.

Format:

Book

Contributor:

Jahan, M. P., editor.

Series:

Manufacturing technology research.

Manufacturing Technology Research

Language:

English

Subjects (All):

Electric metal-cutting.

Physical Description:

1 online resource (507 p.)

Place of Publication:

New York : Nova Publishers, 2015.

Language Note:

English

Summary:

Electrical Discharge Machining (EDM) is one of the earliest and most widely used non-conventional machining processes. In recent years, the use of EDM has increased significantly in industries, mainly due to the extensive use of hard and difficult-to-cut materials, i.e. hardened steels, carbides, titanium alloys, nickel super alloys and so on. The EDM process is being used extensively for many important applications in die and mold, aerospace, automotive, micro-electronic and biomedical industries. As a result, extensive research has been carried out on various aspects of EDM. Taking those facts into consideration, this book aims to provide a comprehensive overview of the various types, technologies and applications of EDM. The book starts with chapters on the two major types of EDM: die-sinking EDM and wire-EDM. Subsequently, several EDM-based hybrid machining processes, such as: ultrasonically aided EDM, powder-mixed EDM, and simultanous micro-EDM/ECM have been discussed in detail. This book includes chapters on the detail of EDM surface and modeling and simulation of the EDM process. This book also contains chapters on the novel and innovative applications of EDM as well as machining of newer materials, such as: shape memory alloy, reaction-bonded silicon carbide, metal metrix composites, silicon based semiconductors, and non-conducting polymers. It is a useful resource for students and researchers who are planning to start their research on the area of EDM and related processes. It can also serve as a reference for students, academics, researchers, engineers, and working professionals in non-traditional manufacturing processes related industries.

Contents:

ELECTRICAL DISCHARGE MACHINING (EDM) TYPES, TECHNOLOGIES AND APPLICATIONS ; ELECTRICAL DISCHARGE MACHINING (EDM) TYPES, TECHNOLOGIES AND APPLICATIONS ; Library of Congress Cataloging-in-Publication Data; CONTENTS; PREFACE ; CONTRIBUTORS ; Chapter 1 DIE-SINKING ELECTRICAL DISCHARGE MACHINING ; ABSTRACT ; HISTORY OF EDM ; PRINCIPLE OF EDM AND DIE-SINKING EDM ; DIE-SINKING EDM SYSTEM COMPONENTS ; Workpiece, Electrode and Dielectric ; Workpiece Selection ; Tool Electrode Selection ; Selection of Dielectric Fluid ; X-Y Positioning or Machine Bed ; Servo Control System

Power Supply System or Pulse Generator Dielectric Circulation and Flushing System ; MACHINING PARAMETERS OF DIE-SINKING EDM ; Parameters for Transistor Type Pulse Generator ; Gap Voltage ; Peak Current ; Pulse Duration ; Pulse Interval ; Duty Ratio ; Parameters for RC Type Pulse Generator ; Discharging and Breakdown Voltage; Capacitance ; Gap Control Parameters ; Gap Feed Rate; Gap Control Factor, k ; Gap Threshold Voltage ; PERFORMANCE PARAMETERS OF DIE-SINKING EDM ; Material Removal Rate ; Tool Wear Ratio ; Surface Roughness ; VARIATIONS OF DIE-SINKING EDM SYSTEM ; EDM Drilling

Planetary EDM Milling EDM ; INDUSTRIAL APPLICATIONS OF DIE-SINKING EDM ; Mold Making and Injection Molding ; Engraving ; Fuel Injector or Automotive Nozzles ; Mass Fabrication of Cooling Holes ; Complex Micro and Meso Structures ; Medical Instruments and Microelectronic Parts ; RECENT ADVANCES IN DIE-SINKING EDM ; EDM-ECM Compound Process; Vibration-Assisted Die-sinking EDM ; Powder-Mixed Die-sinking EDM ; Micro and Nano Die-sinking EDM ; CONCLUSION ; ACKNOWLEDGEMENT; REFERENCES ; Chapter 2 WIRE ELECTRICAL DISCHARGE MACHINING ; ABSTRACT ; INTRODUCTION ; THE WEDM PROCESS

Computerized Numerical Control (CNC) Positioning of Wire; Power Supply ; Wire Drive System and Automatic Wire Threading (AWT) ; Dielectric System ; Filtering Systems ; Deionizing Subsystem ; WEDM TYPES ; Dry and Near-Dry Wire Cut ; WEDM ELECTRICAL PARAMETERS ; Pulse on Time and Pulse Off Time ; Peak Current ; Gap Voltage ; Servo Voltage ; Servo Feed Rate ; WIRE EDM NON ELECTRICAL PARAMETERS; Dielectric Flow Rate ; Wire Speed or Wire Feed ; Wire Tension ; HOW EDM WIRE IS MADE ; Casting ; Rolling ; Preliminary Drawing ; Finish Drawing ; Spooling ; Packaging ; Coated Wires ; WIRE PROPERTIES

Conductivity Tensile Strength ; Elongation ; Melting Point ; Straightness ; Flush Ability ; Cleanliness ; DIFFERENT WIRE MATERIALS ; Copper ; Brass ; Aluminium-Brass ; Steel ; Molybdenum ; Tungsten ; MolyCarb ; Single-Layer Coated Wires ; Double-Layer Coated Wires ; Multi-Layer Coated Wires ; Diffusion-Annealed Coated Wires; Brass Wire Phases ; Beta Phase Wires ; Gamma Phase Wires ; Epsilon Phase Wires ; Fine Wires ; DIFFERENT PROCESS RESPONSES ; Material Removal Rate and Cutting Speed ; Surface Roughness ; Kerf Width and Sparking Gap ; Wire Wear Ratio

Analysing the Wire Rupture and Wire Wear Topography

Notes:

Description based upon print version of record.

Includes bibliographical references at the end of each chapters and index.

Description based on print version record.

ISBN:

1-63483-598-0