Evaluation of Residual Stresses Induced by Ultra-High-Speed Drilling in Aluminium Alloys

Joao P. Nobre; Ruben Guimarães; António Castanhola Batista; Maria José Marques; Luís Coelho; Andreas Nau; Berthold Scholtes

doi:10.4028/www.scientific.net/MSF.768-769.128

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Measurement of Residual Stresses in the Cold-Rolled Fe-Ni-Mn/Invar Thermo-Bimetallic Plate
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A Neural Networks Approach to Measure Residual Stresses Using Spherical Indentation
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An Almost User-Independent Evaluation Formalism to Determine Arbitrary Residual Stress Depth Distributions with the Hole-Drilling Method
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Evaluation of Residual Stresses Induced by Ultra-High-Speed Drilling in Aluminium Alloys
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Influence of the Interfacial Roughness on Residual Stress Analysis of Thick Film Systems by Incremental Hole Drilling
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Investigation of Residual Stresses in Flame Sprayed Ni-Based Wear Resistant Coatings by the Hole-Drilling and X-Ray Methods
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Bending Test Rig for Validating the Hole Drilling Method Residual Stress Measurement
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HomeMaterials Science ForumMaterials Science Forum Vols. 768-769Evaluation of Residual Stresses Induced by...

Evaluation of Residual Stresses Induced by Ultra-High-Speed Drilling in Aluminium Alloys

Abstract:

A hybrid experimental-numerical methodology is applied to evaluate the unwanted stresses induced by hole-drilling in two 5000 and 7000 series aluminium alloys. The influence of the cutting speed of ultra-high speed drills powered by turbine systems by compressed air, which are commonly used in the hole-drilling equipments for residual stress measurements, is analyzed. The comparison of the effect of different drilling conditions on the drilled material using a quantitative approach is now possible. The applied methodology can play an important role on the improvement and optimization of the hole-drilling technique for residual stress measurements in particular and the drilling process in general.

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Materials Science Forum (Volumes 768-769)

Pages:

128-135

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.768-769.128

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Online since:

September 2013

Authors:

Joao P. Nobre, Ruben Guimarães, António Castanhola Batista, Maria José Marques, Luís Coelho, Andreas Nau, Berthold Scholtes

Keywords:

Aluminium Alloy, Drilling Stresses, Finite Element Analysis (FEA), Hole-Drilling Method

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