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The Investigation of Abrasive Jet Polishing on the Linear Micro-Channels Surface of SKD61 Mold Steel
Abstract:
This study examined the performance of abrasive jet polishing (AJP) on SKD61 mold surfaces using wax-coated SiC abrasives fabricated by gas atomization and the comparison of surface quality achieved by revealing significant surface roughness reduced with wax-coated abrasives. The wax coating of SiC abrasives smooth the sharp surfaces of abrasive powders and provides a cushioning buffer. These two features contribute and improve the direct impact of heavy peening, thus preventing surface hardening, superficial embedment or deep scratches. Furthermore, compound additives including water wax and water were added to the wax-coated #3000 SiC abrasives at a mix proportion of 500: 1000: 1500 (water wax: wax-coated SiC: water) for polishing micro-channels surfaces. The experimental results show that the compound additives provide addition cushioning effect facilitate the sliding and grinding of abrasives, resulting in fine polishing and good surface quality. The reflection properties of both linear and curved micro-channels were much enhanced by AJP using wax-coated #3000 SiC abrasives with the compound additives.
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1799-1804
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January 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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