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Effect of cryogenic assistance on hole shrinkage during Ti6Al4V drilling

Article dans une revue avec comité de lecture
Author
MERZOUKI, Johan
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
POULACHON, Gérard
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
ROSSI, Frédéric
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
ccAYED, Yessine
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
ABRIVARD, Guillaume
55697 Airbus [France]

URI
http://hdl.handle.net/10985/25782
DOI
10.1007/s00170-020-05381-z
Date
2020-06-12
Journal
The International Journal of Advanced Manufacturing Technology

Abstract

This paper focuses on the impact of cryogenic assistance on the drilling of Ti6Al4V titanium alloy. It develops a relation between the phenomenon of hole shrinkage and measurements performed either during or after the machining operation. Indeed, because this phenomenon is apparently strongly associated with heat generation, which is the main issue in titanium alloy drilling, this work proposes to verify the effect of liquid nitrogen cooling on hole shrinkage, quantify it, and then relate it to these measurements. Specifically, the cutting forces and final hole geometry are analyzed and their variations are explained using the collected data on hole shrinkage.

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