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Machinability in Oblique Powder Blasting of Glass  

박동삼 (인천대학교 기계공학과)
서태일 (인천대학교 기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.6, 2004 , pp. 28-34 More about this Journal
Abstract
The old technique of sandblasting which has been used for decoration of glass surface has recently been developed into a powder blasting technique for brittle materials such as glass, silicon and ceramics, capable of producing micro structures larger than 100${\mu}{\textrm}{m}$. In this study, we introduced oblique powder blasting, and investigated the effect of the impacting angle of particles, the scanning times and the stand-off distance on the surface roughness and the weight-loss rate of samples with no mask, and the wall profile and overetching of samples with different mask pattern in powder blasting of soda-lime glass. The varying parameters were the different impact angles between 50$^{\circ}$ and 90$^{\circ}$, scanning times of nozzle up to 40 and the stand-off distances 70mm and 100mm. The widths of mask pattern were 0.2mm, 0.5mm and 1mm. The powder was alumina sharp particles, WA #600. The mass flow rate of powder during the erosion test was fixed constant at 175g/min and the blasting pressure of powder at 0.2Mpa.
Keywords
Powder blasting; Impact angle; Glass; Surface roughness; Weight-loss rate; Overetching; Wall profile; Wall profile;
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Times Cited By KSCI : 4  (Citation Analysis)
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