ABSTRACT
CONTENTS 9.1 Introduction ............................................................................................... 204
9.1.1 Principle and Mechanism of ELID Grinding......................... 204 9.1.2 Components of ELID Grinding System.................................. 206 9.1.3 Electrical Aspects of ELID Grinding ....................................... 208 9.1.4 Characteristics of Grinding Wheel in ELID Applications ... 209 9.1.5 Structure and Properties of Ceramics ..................................... 211 9.1.6 ELID Grinding Applied to Various Materials ...................... 211 9.1.7 ELID Grinding Applied to Ceramic Materials ...................... 212
9.2 Material Removal Mechanisms in Grinding of Ceramics and Glasses ................................................................................................ 213
9.3 ELID Technique as Compared to Other Grinding Techniques ........ 216 9.3.1 Summary of ELID Technology................................................. 216 9.3.2 Other In-Process Dressing Technologies ................................ 218
9.4 Applications of ELID Technique............................................................ 218 9.4.1 ELID-Side Grinding.................................................................... 219 9.4.2 ELID Double-Side Grinding ..................................................... 220 9.4.3 ELID-Lap Grinding .................................................................... 222 9.4.4 ELID Grinding of Ceramics on Vertical Rotary Surface
Grinder.......................................................................................... 225 9.4.5 ELID Grinding of Ceramics on Vertical Grinding Center... 226 9.4.6 ELID Grinding of Bearing Steels.............................................. 230 9.4.7 ELID Grinding of Ceramic Coatings....................................... 234 9.4.8 ELID Ultraprecision Grinding of Aspheric Mirror .............. 235 9.4.9 ELID Grinding of Microspherical Lenses .............................. 237 9.4.10 ELID Grinding of Large Optical Glass Substrates ............... 237 9.4.11 ELID Precision Internal Grinding............................................ 237 9.4.12 ELID Grinding of Hard Steels .................................................. 240 9.4.13 ELID Mirror-Like Grinding of Carbon Fiber Reinforced
Plastics .......................................................................................... 241
9.4.14 ELID Grinding of Chemical Vapor Deposited Silicon Carbide.......................................................................................... 242
9.5 Summary and Conclusions ..................................................................... 242 References ........................................................................................................... 244
This chapter represents a state-of-the-art process in the domain of electrolytic in-process dressing (ELID) abrasives. The information enclosed represents a considerable effort of analysis and synthesis of more than 50 titles from most relevant research published on this topic in the United States, Japan, and western Europe for the last 10 years. A comprehensive description of the principle and characteristic mechanisms of ELID abrasion are introduced. Specific features of each component of ELID grinding and polishing system are described further. Next, an explanation of the successful and wide application of ELID principles to ceramic grinding is furnished. Most important, 14 applications of ELID principle to modern abrasive processes are documented. The final summary and conclusions represent a handy tool for rapid information on ELID abrasion.
