Next Article in Journal
Microstructures, Mechanical and Corrosion Properties of the Extruded AZ31-xCaO Alloys
Next Article in Special Issue
Product Lifecycle Management as Data Repository for Manufacturing Problem Solving
Previous Article in Journal
Biological Compatibility of a Polylactic Acid Composite Reinforced with Natural Chitosan Obtained from Shrimp Waste
Previous Article in Special Issue
Analysis of Surface Extraction Methods Based on Gradient Operators for Computed Tomography in Metrology Applications
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Materials 2018, 11(8), 1466; https://doi.org/10.3390/ma11081466

Experimental Study of Macro and Microgeometric Defects in Drilled Carbon Fiber Reinforced Plastics by Laser Beam Machining

Department of Mechanical Engineering & Industrial Design, Faculty of Engineering, University of Cadiz, Av. Universidad de Cádiz 10, E-11519 Puerto Real (Cadiz), Spain
*
Author to whom correspondence should be addressed.
Received: 1 July 2018 / Revised: 13 August 2018 / Accepted: 13 August 2018 / Published: 18 August 2018
(This article belongs to the Special Issue Special Issue of the Manufacturing Engineering Society (MES))
Full-Text   |   PDF [5526 KB, uploaded 18 August 2018]   |  

Abstract

Plastic matrix composite materials are an excellent choice for structural applications where high strength-weight and stiffness-weight ratios are required. These materials are being increasingly used in diverse industrial sectors, particularly in aerospace. Due to the strict tolerances required, they are usually machined with drilling cycles due to the type of mounting through rivets. In this sense, laser beam drilling is presented as an alternative to conventional drilling due to the absence of tool wear, cutting forces, or vibrations during the cutting process. However, the process carries with it other problems that compromise the integrity of the material. One of these is caused by the high temperatures generated during the interaction between the laser and the material. In this work, variance analysis is used to study the influence of scanning speed and frequency on macro geometric parameters, surface quality, and defects (taper and heat affected zone). Also, in order to identify problems in the wall of the drill, stereoscopic optical microscopy (SOM) and scanning electron microscopy (SEM) techniques are used. This experimental procedure reveals the conditions that minimize deviations, defects, and damage in machining holes. View Full-Text
Keywords: laser beam machining; carbon fiber reinforced polymer; hole quality characteristics; geometrical parameters; roughness parameters; taper; heat affected zone laser beam machining; carbon fiber reinforced polymer; hole quality characteristics; geometrical parameters; roughness parameters; taper; heat affected zone
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Mayuet Ares, P.F.; Vázquez Martínez, J.M.; Marcos Bárcena, M.; Gámez, A.J. Experimental Study of Macro and Microgeometric Defects in Drilled Carbon Fiber Reinforced Plastics by Laser Beam Machining. Materials 2018, 11, 1466.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top