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http://dx.doi.org/10.7735/ksmte.2015.24.2.224

Machinability Evaluation of Sapphire Glass Using Powder Blasting  

Kang, Eun Ji (Department of Mechanical Engineering, Graduate School of Incheon National University)
Kim, Jung Ho (Department of Mechanical Engineering, Graduate School of Incheon National University)
Jang, Ho Su (Department of Mechanical Engineering, Graduate School of Incheon National University)
Park, Dong Sam (Division of Mechanical System Engineering, Incheon National University)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.24, no.2, 2015 , pp. 224-230 More about this Journal
Abstract
In this study, the machinability of sapphire glass is tested using the powder blasting method under various blasting conditions. The thickness and diameter of the sapphire glass samples were 0.4 mm and 50.8 mm (2 inch), respectively. The machined patterns from each sample were a circle, a square, and a rectangle. The powder we used was GC #400 and #800. The blasting pressures of the powders were 2, 4, and 6 bar. The scanning time of the nozzle was 20 and the scanning speeds of the nozzle were 80, 100, and 120 mm/s. Experimental results showed that machining depths increased in proportion to blasting pressure. The machining depth of GC #800 was much higher than that of GC #400, while surface roughness was worst with GC #400. These results imply that the blasting pressure and size of the blasting powder are the most important parameters for machining sapphire glass.
Keywords
Sapphire glass; Mobile; Tempered glass; Powder blasting; Machinability;
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Times Cited By KSCI : 1  (Citation Analysis)
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