Damage Evaluation of CMCs after Drilling with Geometrically Defined Cutting Edges

Abstract:

In this contribution a new method of drilling Ceramic Matrix Composites (CMC) with geometrically defined cutting edges is introduced. For this, tools with massive PCD (Poly Crystalline Diamond) drilling bits are applied. To evaluate the drill hole quality the damage behavior is analyzed by an optical method and a new quality index is introduced. The fundamental investigations on the basic drilling parameters of a C/C-SiC material are presented

• Periodical: Materials Science Forum (Volumes 825-826)
• Pages: 271-278
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.825-826.271
• Online since: July 2015
• Authors: Achim Rösiger*, Ralf Goller
• Keywords: CMC, Defined Cutting Edge, Drilling

References

[1] W. Krenkel, Entwicklung eines kostengünstigen Verfahrens zur Herstellung von Bauteilen aus keramischen Verbundwerkstoffen, Dissertation, Deutsches Zentrum für Luft- und Raumfahrt e.V., Köln (2000).

[2] W. Krenkel, Ceramic Matrix Composites, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany (2008).

[3] P.L. Murthy, N.N. Nemeth, D.N. Brewer, S. Mital, Probabilistic analysis of a SiC/SiC ceramic matrix composite turbine vane, Composites Part B: Engineering 39 (2008) 694–703.

DOI: 10.1016/j.compositesb.2007.05.006

[4] D. Biermann, T. Jansen, M. Feldhoff, Faserverstärkte Keramik effizient bearbeiten, MM - Maschinenmarkt. Das IndustrieMagazin 11 (2009) 28–31.

[5] A. Rösiger, R. Goller, CMC friction systems - state of the art and future concepts of the machining technology, Proceedings of the 14th European Inter-Regional Conference on Ceramics (2014), p.94–105.

[6] H. Abu El-Hija, W. Krenkel, S. Hugel, Development of C/C-SiC Brake Pads for High-Performance Elevators, Int J Applied Ceramic Technology 2 (2005) 105–113.

DOI: 10.1111/j.1744-7402.2005.02012.x

[7] W. Krenkel, R. Renz, CMCs for Friction Applications, in: W. Krenkel (Ed. ), Ceramic Matrix Composites, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany 2008, p.385–407.

DOI: 10.1002/9783527622412.ch16

[8] R. Renz, G. Seifert, W. Krenkel, Integration of CMC Brake Disks in Automotive Brake Systems, Int. J. Appl. Ceram. Technol. 9 (2012) 712–724.

DOI: 10.1111/j.1744-7402.2012.02812.x

[9] W. König, P. Graß, Quality Definition and Assessment in Drilling of Fibre Reinforced Thermosets, CIRP Annals - Manufacturing Technology 38 (1989) 119–124.

DOI: 10.1016/s0007-8506(07)62665-1

[10] K. Weinert, T. Jansen, Machining Aspects for the Drilling of C/C-SiC Materials, in: W. Krenkel (Ed. ), Ceramic Matrix Composites, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany 2008, p.287–301.

DOI: 10.1002/9783527622412.ch12

[11] H. Ho-Cheng, C. K. H. Dharan, Delamination during drilling in composite laminates, J. Eng. for Industry 112 (1990) 236-239.

DOI: 10.1115/1.2899580

[12] C. Becke, Prozesskraftrichtungsangepasste Frässtrategien zur schädigungsarmen Bohrungsbearbeitung an faserverstärkten Kunststoffen, Dissertation, Shaker, Aachen (2011).

[13] J. Davim, J. Rubio, A. Abrao, A novel approach based on digital image analysis to evaluate the delamination factor after drilling composite laminates, Composites Science and Technology 67 (2007) 1939–(1945).

DOI: 10.1016/j.compscitech.2006.10.009

[14] T.J. Grilo, R. Paulo, C. Silva, J.P. Davim, Experimental delamination analyses of CFRPs using different drill geometries, Composites Part B: Engineering 45 (2013) 1344–1350.

DOI: 10.1016/j.compositesb.2012.07.057