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Appl. Sci. 2018, 8(8), 1353; https://doi.org/10.3390/app8081353

The Comparative Study on Cutting Performance of Different-Structure Milling Cutters in Machining CFRP

School of Mechanical and Power Engineering, Harbin University of Science and Technology, 150080 Harbin, China
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Received: 24 July 2018 / Revised: 31 July 2018 / Accepted: 9 August 2018 / Published: 12 August 2018
(This article belongs to the Section Mechanical Engineering)
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Abstract

Carbon fiber reinforced plastic (CFRP) is typically hard to process, because it is easy for it to generate processing damage such as burrs, tears, delamination, and so on in the machining process. Consequently, this restricts its wide spread application. This paper conducted a comparative experiment on the cutting performance of the two different-structure milling cutters, with a helical staggered edge and a rhombic edge, in milling carbon fiber composites; analyzed the wear morphologies of the two cutting tools; and thus acquired the effect of the tool structure on the machined surface quality and cutting force. The results indicated that in the whole cutting, the rhombic milling cutter with a segmented cutting edge showed better wear resistance and a more stable machined surface quality. It was not until a large area of coating shedding occurred, along with chip clogging, that the surface quality decreased significantly. At the stage of coating wear, the helical staggered milling cutter with an alternately arranged continuous cutting edge showed better machined surface quality, but when the coating fell off, its machined surface quality began to reveal damage such as groove, tear, and fiber pullout. Meanwhile, burrs occurred at the edge and the cutting force obviously increased. By contrast, for the rhombic milling cutter, both the surface roughness and cutting force increased relatively slowly. View Full-Text
Keywords: carbon fiber reinforced plastic; milling cutter; wear morphology; machined surface quality; cutting force carbon fiber reinforced plastic; milling cutter; wear morphology; machined surface quality; cutting force
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Chen, T.; Gao, F.; Li, S.; Liu, X. The Comparative Study on Cutting Performance of Different-Structure Milling Cutters in Machining CFRP. Appl. Sci. 2018, 8, 1353.

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