Abrasive jet micro-machining of planar areas and transitional slopes

摘要: Analytical and computer models are presented to predict the evolution of planar areas transitional slopes micromachined in glass using abrasive jet micro-machining. The energy distributions across a rectangular round nozzle were found be non-uniform therefore unsuitable machine flat surfaces single pass. Consequently, simple model was developed guide computer-controlled machining an approximately surface, by use multiple passes arranged such manner that summation their gave uniform flux surface. Planar machined glass, there good agreement between predictions experimentally measured surface profiles. Masked also machined, it particle scattering mask edge (Ghobeity, Krajac, Burzynski, Papini Spelt 2008 Wear 264 185–98) caused sidewalls area very shallow, on order only few degrees. A novel method is increase slope at edges masked areas. Although methods demonstrated through micro-machining flat, areas, they equally applicable production inclined arbitrarily curved surfaces.