A Novel Cutting Concept of CFRP Composites for Extending the Life of Tool

Abstract:

This paper presents a novel concept for extending the life of the tools that are used in the milling process of carbon-fiber-reinforced plastic (CFRP) composites. Three types of tools were compared in milling tests; tool I: an uncoated tungsten carbide (WC-Co) tool, tool II: a polycrystalline diamond (PCD) tool, and tool III: a combination tool comprising a PCD layer surface with a thickness of 100 μm and a WC-Co substrate flank surface. The measurement of changes in cutting forces over cutting distance revealed that tool III had a better (tool) life performance than the other tools. Additionally, observation of changes in the edge profiles of the tools revealed that the effective edge sharpness of tool III remains constant during the milling tests. The difference between the wear rates of the PCD rake and WC-Co flank surfaces in tool III maintained a constant effective sharpness during the milling process, and it extended the tool life. Based on our findings, we concluded that using the difference between the wear rates of rake and flank surfaces is an effective technique for tool life extension in the milling process of CFRP laminates.

• Periodical: Key Engineering Materials (Volumes 656-657)
• Pages: 198-203
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.656-657.198
• Online since: July 2015
• Authors: Satoru Maegawa*, Yuta Morikawa, Shinya Hayakawa, Fumihiro Itoigawa, Takashi Nakamura
• Keywords: Abrasive Wear, Carbon Fiber Reinforced Plastics, Milling, Tool Life, Tool Wear

References

[1] D. Che, I. Saxena, P. Han, P. Guo, K.F. Ehmann, Machining of carbon fiber reinforced plastics/polymers: A literature review, J Manufact. Sci. Engi. 136 (2014) 034001.

DOI: 10.1115/1.4026526

[2] H. Hocheng, H.Y. Puw, and Y. Huang, Preliminary study on milling of unidirectional carbon fibre-reinforced plastics, Compos. Manuf. 4 (2000) 103–108.

DOI: 10.1016/0956-7143(93)90077-l

[3] D. Kalla, J. Sheikh-Ahmad, J. Twomey, Prediction of cutting forces in helical end milling fiber reinforced polymers, Int. J. Mach. Tools Manuf. 50 (2010) 882–891.

DOI: 10.1016/j.ijmachtools.2010.06.005

[4] B. Denkena, D. Boehnke, J.H. Dege, Helical milling of CFRP–Titanium layer compounds, CIRP J. Manuf. Sci. Technol. 1 (2008) 64–69.

DOI: 10.1016/j.cirpj.2008.09.009

[5] Y. Karpat, O. Bahtiyar, B. Deger, Mechanistic force modeling for milling of unidirectional carbon fiber reinforced polymer laminates, Int. J. Mach. Tools Manuf. 56 (2012) 79–93.

DOI: 10.1016/j.ijmachtools.2012.01.001

[6] M.K. Nor Khairusshima, C.H. Che Hassan, A.G. Jaharah, A. Nurul Amin, Tool wear and surface roughness on milling carbon fiber-reinforced plastic using chilled air, J. Asian Sci. Res. 2 (2012) 593–598.

DOI: 10.1016/j.wear.2013.01.043

[7] S.A. Jamal, Y. Rahul, Model for predicting cutting forces in machining CFRP, Int. J. Mater. Prod. Technol. 32 (2008) 152–167.