Publication detail
Analysis od delamination in drilling of composite materials
SEDLÁČEK, J. SLANÝ, M.
Czech title
Analýza delaminace při vrtání kompositních materiálů
English title
Analysis od delamination in drilling of composite materials
Type
journal article - other
Language
en
Original abstract
The aim of this work is to clarify the interaction mechanisms between the drilling tool and material. Among the defects caused by drilling, delamination appears as to be of the most critical and may occurs at both the entrance and exit plane. This paper presents a prediction Hocheng-Dharan model of thrust force for drilling without delamination. HSS twist drills with different geometry were used for drilling of carbon/epoxy composites. Experiments were performed to validate physical model of delamination and investigate the effect of tool geometry and drilling paramenters on delamination. The results showed that proposed delamination model is adequate and that damage around drilling hole can be reduced significantly by proper selection of drilling conditions.
Czech abstract
Cílem této práce je objasnění interakčních mechaismů mezi vrtacím nástrojem a materiálem obrobku. Mezi defekty způsobenými vrtání patří především delaminace a to jak na vstupu materiálu, tak při jeho výstupu. Tento článek presentuje predikci Hocheng-Dharanova modelu tlakové síly při vrtání bez výzkytu delaminace. Byly analyzovány různě HSS Šroubovité vrtáky pro vrtání uhlíkatých a epoxiových pryskyřic. Experimenty a jejich výsledky prokázaly správnost delaminačního modelu a potvdily předchozí experimentální výsledky, při kterých byla tato delaminace výrazně ovlivněna řeznými podmínkami..
English abstract
The aim of this work is to clarify the interaction mechanisms between the drilling tool and material. Among the defects caused by drilling, delamination appears as to be of the most critical and may occurs at both the entrance and exit plane. This paper presents a prediction Hocheng-Dharan model of thrust force for drilling without delamination. HSS twist drills with different geometry were used for drilling of carbon/epoxy composites. Experiments were performed to validate physical model of delamination and investigate the effect of tool geometry and drilling paramenters on delamination. The results showed that proposed delamination model is adequate and that damage around drilling hole can be reduced significantly by proper selection of drilling conditions.
Keywords in Czech
compositní materiály, delaminace, vrtání, opotřebení nástroje
Keywords in English
composite materials, delamination, drilling, tool wear
RIV year
2010
Released
14.07.2010
Publisher
MM Science
Location
Praha
ISSN
1803-1269
Journal
MM Science Journal
Volume
Vol. 3
Number
6
Pages from–to
194–197
Pages count
4
BIBTEX
@article{BUT50392,
author="Jan {Sedláček} and Martin {Slaný},
title="Analysis od delamination in drilling of composite materials",
journal="MM Science Journal",
year="2010",
volume="Vol. 3",
number="6",
month="July",
pages="194--197",
publisher="MM Science",
address="Praha",
issn="1803-1269"
}