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Improved tool geometry to enhance surface quality and integrity in trimming of CFRP composite materials

: Caggiano, A.; Lopresto, V.; Teti, R.

Fulltext (PDF; )

Procedia CIRP 66 (2017), pp.187-192
ISSN: 2212-8271
Conference on Composite Materials Parts Manufacturing (CCMPM) <1, 2017, Karlsruhe>
Journal Article, Conference Paper, Electronic Publication
Fraunhofer J LEAPT ()

Experimental trimming tests on unidirectional carbon fibre reinforced polymer composites using a conventional tool and a newly developed V-shaped tool were performed to verify the effect on cut quality and surface integrity. Depth of cut and cutting speed were fixed, whereas the fiber orientation angle θ with respect to the cutting direction was varied in the range 0°-180°. Three parameters were selected to evaluate the cut surface: the depth of the splits at the cut specimen sides, the depth of the splits generated in the internal material volume, and the cut surface roughness, Ra. These parameters revealed a significant improvement when using the V-shaped tool.