Journal ArticleDOI
Assessment of the Exit Defects in Carbon Fibre-Reinforced Plastic Plates Caused by Drilling
TLDR
In this article, the authors investigated the formation of the exit defects in carbon fiber-reinforced plates and characterised their features in terms of drilling conditions and found that spalling and fuzzing are the major mechanisms of exit defects.Abstract:
This paper investigates the formation of the exit defects in carbon fibre-reinforced plates and characterizes their features in terms of drilling conditions. It was found that spalling and fuzzing are the major mechanisms of exit defects. The spalling, consisting of a main region and a secondary region, is caused by chisel and cutting edge actions, in which the former plays a key role. The fuzzing, however, exists in the cutting region where the included angle between the fibre direction of the surface layer and that of the cutting speed is acute. A severer spalling damage corresponds to a high spindle speed, a large feed rate and a great thrust force. Some empirical relationships, including a dimensionless formula, were developed for assessing the characteristic dimension of the spalling damage based on the known drilling conditions.read more
Citations
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Journal ArticleDOI
Drilling of fiber reinforced plastics: A review
TL;DR: In this paper, the authors present a literature survey on the machining of composite materials, more specifically on drilling of glass and carbon fiber reinforced plastics, and assess the quality of the holes produced.
Journal ArticleDOI
A novel approach based on digital image analysis to evaluate the delamination factor after drilling composite laminates
TL;DR: In this article, an experimental design is proposed for drilling carbon fiber reinforced plastic (FRP) laminates under distinct cutting conditions, and the digital analysis of the damage was conducted in order to assess the delamination factor.
Journal ArticleDOI
Drilling carbon fiber reinforced plastics manufactured by autoclave-experimental and statistical study
J. Paulo Davim,Pedro Reis +1 more
TL;DR: In this article, a plan of experiments, based on the techniques of Taguchi, was established considering drilling with prefixed cutting parameters in an autoclave carbon fiber reinforced plastics (CFRP) composite laminate.
Journal ArticleDOI
An experimental investigation into the orthogonal cutting of unidirectional fibre reinforced plastics
X.M. Wang,Liangchi Zhang +1 more
TL;DR: In this article, the machinability of unidirectional carbon fiber reinforced by epoxy composites when subjected to orthogonal cutting was investigated. And the authors found that the subsurface damage and its mechanisms of a machined component are greatly influenced by fibre orientation.
Journal ArticleDOI
Occurrence and propagation of delamination during the machining of carbon fibre reinforced plastics (CFRPs) – An experimental study
TL;DR: In this article, the occurrence and propagation of delamination were studied by milling slots in unidirectional carbon fiber reinforced plastics (CFRP) specimens having different fibre orientations and mainly analyzing the slot tip.
References
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Journal ArticleDOI
Machining of Fibre Reinforced Plastics
TL;DR: In this paper, the major parameters determining the cutting result, especially with respect to the quality, are discussed and explained, as far as possible, as well as the tool geometry and cutting conditions are discussed.
Journal ArticleDOI
Quality Definition and Assessment in Drilling of Fibre Reinforced Thermosets
TL;DR: In this article, the main parameters concerning machining quality, especially surface roughness and material damage, in drilling fiber reinforced thermosets are discussed and explained, and the results of the machining process are compared with those of metal machining.
Journal ArticleDOI
On drilling characteristics of fiber-reinforced thermoset and thermoplastics
Hong Hocheng,H.Y. Puw +1 more
TL;DR: In this paper, a study of reinforced thermoset and thermoplastics for characterizing their responses to machining is presented, and the results are useful in establishing a mathematical model to predict torque and thrust in drilling of composite materials as a function of cutting parameters and material strength.
Journal ArticleDOI
Material removal in the optical polishing of hydrophilic polymer materials
TL;DR: In this article, a simple empirical equation is presented to evaluate material removal in the polishing of optical spherical surfaces of hydrophilic polymer materials, based on a series of experimental investigations and dimensional analysis.
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