Core Drilling of Fiber Reinforced Materials using Abrasive Tools

Bathe, T.1, a; Biermann, D.1, b; Rautert, C.2

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund
Federal Mogul Burscheid GmbH, Buergermeister-Schmidt-Str. 17, 51399 Burscheid

a); b)


Due to the inhomogeneous structure and the high abrasiveness of fiber-reinforced materials, conventional tools rapidly suffer from a cutting edge rounding which leads to ploughing and consequently to delamination. To reduce these wear-induced damages diamond-mounted points have been utilized to perform series of drilling tests. Based on the suitability of these tools and for enhancing the chip removal and cooling, the shape of the base body and grooves and the coolant supply were varied initially. For the transferability of the developed techniques different fiberreinforced materials as well as a variation of the machining kinematics were employed.


Abrasive Tools, Core Drilling, Cooling Concepts, CFRP, GFRP, AFRP, Circular Drilling


Procedia CIRP, 66 (2017), S. 175-180, doi: 10.1016/j.procir.2017.03.304