Experimental and Parametric Optimization of Micro Holes on ANSI 304 Using Micro Abrasive Jet Machining (MAJM)

Abstract

Micro Abrasive jet machining (MAJM) is one of the most convenient micromachining technologies for hard and brittle materials. Now a day’s mostly ceramics and semiconductor materials are used for manufacturing electronic devices and micro fluidic channels. This process is having various distinct advantages, as compare to other micro-fabrication techniques this method is represented a very high erosion rate. In this paper attempt has been made to develop MAJM for difficult to machine materials such as stainless steel ANSI 304 plate. In order to raise the machining productivity of micromachining, the new design and fabrication of Laval nozzle has been first reported. Circular cross sectional nozzle is developed for high velocity, precise etching and patterning on difficult to machine material such as stainless steel ANSI 304 Plate. The present study focus the effect of different parameters like air pressure, abrasive material, abrasive mesh size, nozzle diameter, guiding pressure and Standoff distance on machining performance is investigated using Taguchi’s Design of Experiment methodology. Analysis of variance (ANOVA) is implementing to find out the significant influence of each factor.