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3. Post-processing of additively manufactured Ti-6Al-4V parts
Post-treatments are designed to improve the mechanical properties of the parts, firstly by eliminating defects inherent to the process (porosity, roughness, residual stresses) and secondly by modifying the microstructure.
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Hot isostatic pressing
Removal of internal porosity is typically achieved using Hot Isostatic Pressing (HIP)
[M 3 310]
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Post-processing of additively manufactured Ti-6Al-4V parts
Mechanical behavior of Ti-6Al-4V formed by additive manufacturing
Bibliography
- (1) - BOYER (R.), WELSCH (G.) - Materials Properties Handbook : titanium alloys. - ASM International (1994).
- (2) - Titanium Ti-6Al-4V (Grade 5), Annealed Bar. - http://www.matweb.com...
Standards and norms
- Additive manufacturing – General principles – Terminology. - NF EN ISO/ASTM 52900 - mai 2017
- Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate. - ASTM B265-15 - 2015
Patents
The additive manufacturing process, first developed in 1984, was mainly used for rapid prototyping of polymer objects.
ANDRÉ (J.-C.), LE MÉHAUTE (A.), DE WITTE (O.), Device for making a model of an industrial part, FR2567668A1, 1984 ( https://bases-brevets.inpi.fr/fr/document/FR2567668.html...
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