An analytical model to predict interlayer burr size following drilling of CFRP-metallic stack assemblies

Ali Abdelhafeez Hassan; S.L. Soo; David K. Aspinwall; Dick Arnold; Anthony Dowson

doi:10.1016/j.cirp.2020.04.038

An analytical model to predict interlayer burr size following drilling of CFRP-metallic stack assemblies

Ali Abdelhafeez Hassan, S.L. Soo, David K. Aspinwall, Dick Arnold, Anthony Dowson

SCEDT Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A novel analytical model to describe entrance burr formation when drilling ductile metals as a function of tool geometry (point/helix angles, diameter), operating parameters (cutting speed, feed rate) and workpiece material properties, was initially formulated. The model was further developed to account for interlayer burr dimensions when drilling CFRP-metallic stack arrangements. Data from validation trials performed on Ti–6Al–4V, AA7010 and AA2024 workpieces together with their associated CFRP stack assemblies over 4 different combinations of cutting speed and feed rate showed that the predicted sizes of entrance and interlayer burrs were all accurate to within 20% of the experimentally measured results.

Original language	English
Pages (from-to)	109-112
Journal	CIRP Annals
Volume	69
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2020.04.038
Publication status	Published - 17 May 2020

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title = "An analytical model to predict interlayer burr size following drilling of CFRP-metallic stack assemblies",

abstract = "A novel analytical model to describe entrance burr formation when drilling ductile metals as a function of tool geometry (point/helix angles, diameter), operating parameters (cutting speed, feed rate) and workpiece material properties, was initially formulated. The model was further developed to account for interlayer burr dimensions when drilling CFRP-metallic stack arrangements. Data from validation trials performed on Ti–6Al–4V, AA7010 and AA2024 workpieces together with their associated CFRP stack assemblies over 4 different combinations of cutting speed and feed rate showed that the predicted sizes of entrance and interlayer burrs were all accurate to within 20% of the experimentally measured results.",

author = "Hassan, {Ali Abdelhafeez} and S.L. Soo and Aspinwall, {David K.} and Dick Arnold and Anthony Dowson",

year = "2020",

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AU - Hassan, Ali Abdelhafeez

AU - Soo, S.L.

AU - Aspinwall, David K.

AU - Arnold, Dick

AU - Dowson, Anthony

PY - 2020/5/17

Y1 - 2020/5/17

N2 - A novel analytical model to describe entrance burr formation when drilling ductile metals as a function of tool geometry (point/helix angles, diameter), operating parameters (cutting speed, feed rate) and workpiece material properties, was initially formulated. The model was further developed to account for interlayer burr dimensions when drilling CFRP-metallic stack arrangements. Data from validation trials performed on Ti–6Al–4V, AA7010 and AA2024 workpieces together with their associated CFRP stack assemblies over 4 different combinations of cutting speed and feed rate showed that the predicted sizes of entrance and interlayer burrs were all accurate to within 20% of the experimentally measured results.

AB - A novel analytical model to describe entrance burr formation when drilling ductile metals as a function of tool geometry (point/helix angles, diameter), operating parameters (cutting speed, feed rate) and workpiece material properties, was initially formulated. The model was further developed to account for interlayer burr dimensions when drilling CFRP-metallic stack arrangements. Data from validation trials performed on Ti–6Al–4V, AA7010 and AA2024 workpieces together with their associated CFRP stack assemblies over 4 different combinations of cutting speed and feed rate showed that the predicted sizes of entrance and interlayer burrs were all accurate to within 20% of the experimentally measured results.

U2 - 10.1016/j.cirp.2020.04.038

DO - 10.1016/j.cirp.2020.04.038

M3 - Article

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SP - 109

EP - 112

JO - CIRP Annals

JF - CIRP Annals

IS - 1

ER -

An analytical model to predict interlayer burr size following drilling of CFRP-metallic stack assemblies

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