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Influence of the Hole Surface Integrity on the Fatigue Strength of an Aluminium Drilled Part

descriptionPublicationkeyboard_double_arrow_right Part of book or chapter of book , Other literature type , Conference object 01 Jan 2021 France Publisher:Springer International Publishing

Authors: Lacombe, Alexandra; Landon, Yann; Paredes, Manuel; Chirol, Clément; Benaben, Audrey;

doi: 10.1007/978-3-030-70566-4_7

Influence of the Hole Surface Integrity on the Fatigue Strength of an Aluminium Drilled Part

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Abstract

AbstractFatigue strengths of aluminium 2024-T351 open-hole specimens drilled by axial and orbital drilling processes are compared. Two drilling diameters (Ø) are studied: 6.35 mm and 9.53 mm. Surface integrity characterization tests are conducted in order to study the link between drilling processes, surface integrity and fatigue life. Fatigue test results show an increase of the fatigue life for specimens drilled by axial drilling for Ø = 9.53 mm and no significant difference in fatigue life between the two drilling processes for Ø = 6.35 mm. Surface integrity results show no impact of the roughness on the fatigue strength but a potential positive influence of the hole microhardness on the fatigue life.

Country

France

Related Organizations

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INSA de Toulouse
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Institut Clément Ader
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Keywords

drilling process, fatigue life, aluminium alloy, surface integrity, [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph]

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