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Innovative tool and process concept for drilling CFRP/titanium stack material

: Schneider, Marco; Gebhardt, Andreas; Esch, Philipp

European Society for Composite Materials:
17th European Conference on Composite Materials, ECCM 2016. Proceedings : 26-30th June 2016, Munich, Germany, CD-ROM
Munich, 2016
ISBN: 978-3-00-053387-7
9 S.
European Conference on Composite Materials (ECCM) <17, 2016, Munich>
Fraunhofer IPA ()
Carbon-fiber-Reinforced Plastic (CFRP); Fräsen; Leichtmetall; Titan

An innovative tooling concept for the purpose of cutting stacks of aerospace materials is presented. The concept addresses specific process requirements and is characterized by a counter drilling process step in order to achieve a quality free of delamination and fiber fuzzing. A study is carried out and the concept is compared to a state-of-the-art one-shot drilling tool. The new tool is able to extend tool life and reduce material damage.