Cryogenic Machining of Carbon Fibre

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3 Citations (Scopus)

Abstract

Processing of composite structures can consist of drilling of holes for joining and assembling of different components. Drilling of composites presents a number of challenges, namely, delamination, excessive burr formation, fibre splitting, heat affected zones and significantly reduced tool life. This paper explores the use of cryogenic CNC machining methods for machining of holes in carbon fibre, typically used in aerospace. Test parts are drilled using a range of different machining parameters, standard carbide tooling and different machining conditions, namely, dry, and cryogenic using liquid nitrogen. The results show that cryogenic methods reduce the amount of delamination and surface roughness, particularly at elevated machining parameters. Cryogenic CNC machining provides a realistic method for drilling of carbon fibre composites that reduces delamination and surface roughness.
Original languageEnglish
Publication statusPublished - 2012
Event12th International Conference of the European Society for Precision Engineering & Nanotechnology - Stockholm, Sweden
Duration: 4 Jun 20128 Jun 2012

Conference

Conference12th International Conference of the European Society for Precision Engineering & Nanotechnology
Abbreviated title12th Euspen
CountrySweden
CityStockholm
Period4/06/128/06/12

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    Dhokia, V., Shokrani Chaharsooghi, A., & Newman, S. (2012). Cryogenic Machining of Carbon Fibre. Paper presented at 12th International Conference of the European Society for Precision Engineering & Nanotechnology, Stockholm, Sweden.