Delamination in carbon/epoxy plates drilling: tool and feed rate effect

• Author(s): Luís Miguel Pereira Durão ; Daniel Gonçalves ; João Manuel R.S. Tavares ; António Aguiar Vieira ; António Paulo Monteiro Baptista
• Date: 2014
• Persistent ID: http://hdl.handle.net/10216/75738
• Origin: Repositório Aberto da Universidade do Porto
• Subject(s): Ciências Tecnológicas
• Document Type: Article
• Language: English

Description

The attractive characteristics of carbon fibre reinforced plastics had widespread their use. In order to join different components, drilling is often necessary. It is known that a drilling process that reduces the drill thrust force can decrease the risk of delamination. In this work, three combinations of the drilling process are compared: tool diameter, tool geometry and feed rate. The parameters studied were: thrust force, delamination extension and mechanical strength of the drilled region bearing test. This work demonstrates that a proper combination of the drilling variables can contribute to reduce the delamination damage and, consequently, enhance mechanical resistance of the joint.