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http://dx.doi.org/10.14775/ksmpe.2017.16.2.0102

Effect of the Elasticity Modulus of Jig Material on Blade Edge Shape in Grinding Process of Sapphire Medical Knife  

Shin, Gun-Hwi (Dept. of Mechanical Engineering, Gyeongnam National University of Sci. and Tech.)
Lee, Deug-Woo (Nano Fusion Technology, Pusan National Univ.)
Kwak, Tae-Soo (Dept. of Mechanical Engineering, Gyeongnam National University of Sci. and Tech.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.2, 2017 , pp. 102-107 More about this Journal
Abstract
This study focuses on the effect of the elasticity modulus of jig material on blade edge shape in the grinding process of a sapphire medical knife. The ELID grinding process was applied as the edge-grinding method for sapphire material. Carbon steel and copper have been selected as the hard and soft jig materials, respectively. The blade edge created by ELID grinding was measured by a surface roughness tester and optical microscope. The shape of the ground edge and surface roughness were compared using the measurement results. As a result, it was found that chipping in the blade edge of the sapphire knife occurred more than in the case of jig material with a high-elasticity modulus because of the high normal force in the grinding process. Moreover, the maximum height surface roughness, $R_{max}$,of the ground surface was higher in the case of the jig material with a high-elasticity modulus due to the difference in elasticelongation. It was considered to lead to chipping from the notch effect.
Keywords
Sharpening Grinding; Jig Material; Sapphire; Surface Roughness; Chipping;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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