ACOMPARATIVESTUDYONTOOLWEARANDLAMINATEDAMAGEINDRILLINGOFCARBON-FIBERREINFORCEDPOLYMERS(CFRP)
Keywords:
CFRP,, Drilling,, Tool wear, Diamond coating.Abstract
Preliminary to successful assembling, drilling of composites like carbon-fiber reinforced polymers (CFRP) is an important but difficult process. The anisotropic and heterogeneous structure of the laminates and the highly abrasive nature of the carbon fibers make it prone to critical damages in the work piece as well as extensive tool wear. In this work, drill series with uncoated and diamond coated tungsten carbide hard metal tools were performed in two CFRP laminates with significant differences in their microstructure. The tool wear behaviour and the corresponding work piece damage were intensively studied to figure out the correlations between wear on light optical microscopy were applied and critically evaluated and delamination damage.
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