RT Journal Article
T1 Experimental analysis of special tool geometries when drilling woven and multidirectional CFRPs
A1 Feito Sánchez, Norberto
A1 Díaz Álvarez, Antonio
A1 Cantero Guisández, José Luis
A1 Rodríguez Millán, Marcos
A1 Miguélez Garrido, María Henar
AB Drilling is one of the most frequent machining operations for carbon fiber-reinforced polymer composites, carried out prior to assembly between structural components using mechanical joining. Delamination is the main damage mechanism involved during carbon fiber-reinforced polymer composite drilling causing an elevated percentage of workpiece rejection. Tool geometry strongly influences drilling performance. In this paper, an original work dealing with the comparison between three recently developed configurations (Brad center, Step drill and Reamer drills) in terms of drilling forces and delamination both for woven and tape carbon fiber-reinforced polymers is presented. Reamer drill showed the best results concerning productivity and delamination. Strong differences were found when hole quality obtained in tape and woven composite was compared: multidirectional composite presented poorer hole quality than woven composite under the same cutting conditions. The analysis of variance was developed in order to analyze the influence of each parameter showing the importance of feed rate on surface damage.
SN 0731-6844
YR 2016
FD 2016-01-01
LK https://hdl.handle.net/10016/35496
UL https://hdl.handle.net/10016/35496
LA eng
NO The author(s) disclosed receipt of the following financial sup-port for the research, authorship, and/or publication of thisarticle: This work was supported by the Ministry of Economyand Competitiveness of Spain (DPI2011-25999) and the FPIsubprogram (BES-2012-055162)
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RD 27 jul. 2024