Process strategies for DED-Arc-manufactured preforms of Ti-15-3-3-3 in flowforming applications

Arc-based directed energy deposition (DED-Arc) processes represent a promising choice for developing flexible and eco-friendly manufacturing strategies for titanium components within the aerospace sector. Previous work has predominantly focused on using Ti-6Al-4V combined with machining for structural components. This study aims to establish a hybrid manufacturing route that integrates DED-Arc with flowforming (FF), focusing on the processability of Ti-15-3-3-3 in both stages. Sinusoidal path strategies for DED-Arc yield superior results in terms of process stability and geometrical accuracy, leading to near-net-shape preforms. In the FF process, a reduction of up to 80% in wall thickness across various techniques was achieved. The hybrid approach led to a buy-to-fly (BTF) ratio of 2.5:1, revealing the potential for significant material savings compared to conventional manufacturing routes.

Content

Subjects

additive manufacturing

directed energy deposition

DED-Arc

flowforming

titanium

Ti-15-3-3-3

DDC Class

620.1: Engineering Mechanics and Materials Science

629.13: Aviation Engineering

333.7: Natural Resources, Energy and Environment

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https://creativecommons.org/licenses/by/4.0/

Publication version

publishedVersion

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Name

engproc-133-00185.pdf

Type

Main Article

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1.63 MB

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Adobe PDF