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"
}