Comparative analysis of wobble milling, helical milling and conventional drilling of CFRPs

• DOI: 10.1007/s00170-019-04842-4
• Publication Date: 2020-01-10T20:02:17Z
• Authors: Csongor Pereszlai; Norbert Geier
• Keywords: Speed wobble; Delamination

Abstract Due to its excellent specific mechanical properties, carbon fibre-reinforced polymer (CFRP) composite is a widely used structural material in the aerospace industry. However, this difficult cut, mainly due inhomogeneity and anisotropic features because of strong wear effects fibres. In scope industrial uses material, thousands holes have be machined for purposes assembly. Nevertheless, conventional drilling technology – even if special tools are only moderately able manufacture good quality holes. Wobble milling novel advanced hole-making technology, which has been developed minimize machining-induced geometrical defects like delamination or uncut The main objective present paper compare wobble milling, helical technologies concerning unidirectional CFRPs. addition, kinematics discussed detail. paper, numerous machining experiments were conducted CFRPs: herein impact type cutting tool process parameters on analysed (diameter holes, circularity error characteristics fibres). During these investigations, experimental data evaluated with help digital image processing (DIP) analysis variance (ANOVA) techniques. Experimental results show that amount fibres can significantly minimized through application technology.