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http://dx.doi.org/10.14775/ksmpe.2021.20.10.072

Effect of the Circular Saw-Blade Type and Wear on the Cutting Quality of a Glass Carbon-Fiber Hybrid Composite  

Baek, Jong-Hyun (School of Mechanical Engineering, Gyeongsang National University)
Joo, Chang-Min (School of Mechanical Engineering, Gyeongsang National University)
Kim, Su-Jin (School of Mechanical Engineering, Gyeongsang National University)
Park, Yoon-Ok (Pyeongchang Carbide Co.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.10, 2021 , pp. 72-79 More about this Journal
Abstract
A circular saw is an effective tool for cutting glass and carbon-fiber hybrid composites. This study investigated tool wear and cut quality when reusing saw blades. The carbide saws wear four times faster than the new ones, and polycrystalline diamond (PCD) is very resistant to tool wear, except at the end of its lifespan. The cut cross-section quality is affected by the blade type, tool wear, and spindle speed. Alternate top bevel (ATB)-type blades are suitable for cutting fiber-reinforced plastics, but triple-chip grind (TCG)-type blades are unsuitable because they cause fiber-pullout defects. Tool wear and low spindle speeds increase the occurrence of arc scratches, due to the rear saw blade. A microscopic examination showed that the burr, which is a mixture of fiber chips and epoxy matrix, was bonded on top, and glass-fiber delamination occurred on the bottom glass-fiber-reinforced polymer (GFRP) surface.
Keywords
Circular Saw; GFRP; CFRP; Cutting; Tool Wear; Reuse;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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