ABSTRACT
Surface finish determines the wear resistance of the component and power loss due to friction. If the surface is not smooth, it can lead to component failure because of crack initiation from the surface. Advancing technology made the miniaturisation of components a necessity. Surface roughness becomes more important as there is miniaturisation of the component dimensions. Even a slight alteration in the dimension can altogether change component functionality. The traditional finishing processes, viz. grinding, honing and
CONTENTS
4.1 Introduction ..................................................................................................75 4.2 Mechanism of Material Removal during the AFF Process .................... 78 4.3 Types of AFF Processes ............................................................................... 79
4.3.1 One-Way AFF ................................................................................... 79 4.3.2 Two-Way AFF ...................................................................................80 4.3.3 Orbital AFF ....................................................................................... 81
4.4 Modelling of AFF Process .......................................................................... 82 4.4.1 Numerical/Simulation Modelling .................................................83 4.4.2 Theoretical/Mathematical Models ................................................ 89 4.4.3 Empirical Modelling ........................................................................99 4.4.4 Soft Computing .............................................................................. 102
4.5 Comments ................................................................................................... 104 Nomenclature ...................................................................................................... 104 References ............................................................................................................. 107
lapping, are incapable of meeting the increasing demand of achieving the end surface finish (nano and sub-nanometer) on the complicated geometries made up of difficult-to-finish materials. Hence, many advanced finishing processes came into existence. Abrasive flow finishing (AFF) is one such advanced finishing process developed to finish internal as well as external, simple to complex geometries.
