Abstract :
Abrasive flow machining (AFM) was developed by Extrude Hone Corporation in 1960s as a technique of deburring, polishing, radiusing and to exclude recast film in various applications. In this technique, an abrasive laden media (viscoelastic) under pre-define pressure was used for abrading the internal and external surface. The effect of key parameters such as grit size and type, total number of cycles, abrasive mesh size, extrusion pressure, design of work piece holding device and proper tooling have influence the outcome parameters such as material abrasion and surface finishing. AFM has quickly spread out into automobile, pharmaceutical, chemical, production, defence, space and aeronautics industry. In AFM process, usually the material removal rate is very slow. So the researchers have to develop the hybrid abrasive flow machining process integrated with other non-traditional machining process to reduce the drawback such as low abrasion rate, low finishing rate and failure to accurate the form geometry, researchers have suggested several types of hybrid abrasive flow machining process abbreviated as MAAFM, UFP, DBG-AFF, HLX-AFM, ECA2FM and MRAFF.
Keyword :
Abrasive flow machining, Abrasive mesh size, Extrusion pressure, Material removal rate, Non-traditional machining process