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Burr size reduction in drilling of Al/SiC metal matrix composite by ultrasonic assistance
, Article Advanced Materials Research, 15 December 2011 through 18 December 2011 ; Volume 410 , December , 2012 , Pages 279-282 ; 10226680 (ISSN) ; 9783037853160 (ISBN) ; Yousefi, R ; Akbari, J ; Rahi, A ; Nikouei, S. M ; Sharif University of Technology
Abstract
Metal matrix composites (MMCs) have received considerable attention due to their excellent engineering properties. Accuracy and surface finish play an important role in modern industry. Undesired projections of materials, known as burrs, reduce the part quality and negatively affect the assembly process. In this study, reducing burr size in drilling of MMC is performed by adding ultrasonic vibration to the process. Al/SiC p MMC with 5 wt% of SiC particulates in dry drilling operation with HSS drill tools coated with TiN was investigated. The effect of ultrasonic assistance on burr size was studied. The results demonstrate that under suitable ultrasonic vibration conditions, in comparison...