Post-Coating Treatment of Cutting Edge for Drilling Carbon Fibre Reinforced Plastics (CFRP)
Abstract
Drilling of highly abrasive carbon fibre reinforced plastics (CFRP) requires carbide tools with geometrical highly adaptable tool geometries andwear resistant diamond coatings. To counteract the tradeoff between long tool lifetime by preferably thick diamond layers leading to largecutting edge radii (bluntness), and the sharpest possible cutting edge to generate flawless machining qualities, the following post-coatingcutting edge treatment methods are compared: Laser-ablation and selective sandblasting. It is shown that laser treatment generates cutting edgeradii of 3-4 μm leading to outstanding bore exit qualities in CFRP from the first bore on, while diamond still protects the rake face. Show more
Permanent link
https://doi.org/10.3929/ethz-a-010673403Publication status
publishedExternal links
Book title
7th HPC 2016 – CIRP Conference on High Performance CuttingJournal / series
Procedia CIRPVolume
Pages / Article No.
Publisher
ElsevierEvent
Subject
CFRP; Sandblast; Diamond Coating; Cutting Edge Treatment; SURFACE TREATMENT OF MATERIALS; MECHANICAL DRILLING, DRILL BITS, REAMERS (MACHINING); OBERFLÄCHENBEHANDLUNG VON WERKSTOFFEN; Laser; CARBON FIBRE-REINFORCED PLASTICS, CFRP (PLASTIC PRODUCTS); Drilling; KOHLENSTOFFASERVERSTÄRKTE KUNSTSTOFFE, CFK (KUNSTSTOFFPRODUKTE); BOHRVERFAHREN, BOHRWERKZEUGE, REIBAHLEN (SPANENDE UMFORMUNG)Organisational unit
03641 - Wegener, Konrad / Wegener, Konrad
02623 - Inst. f. Werkzeugmaschinen und Fertigung / Inst. Machine Tools and Manufacturing
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