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Experimental and numerical studies for evaluation of surface integrity in post-processing of additively manufactured nickel-based alloy by machining process

Project description

Improving surface integrity in additive manufacturing

Additive manufacturing (AM) offers immense potential for creating parts with complex geometries that traditional methods cannot achieve. However, the surface quality of AM parts often falls short of industry standards, requiring post-processing by machining to improve dimensional accuracy and surface finish. This challenge is especially pronounced when working with difficult-to-machine materials like Inconel 718, which is prized for its strength but hard to process. Supported by the Marie Skłodowska-Curie Actions programme, the AMacSurface project aims to bridge this gap by evaluating surface integrity after machining AM Inconel 718. Through a comparative study of conventional, cryogenic cooling, and laser-assisted machining processes, the project will advance machining simulation and develop reliable models for predicting surface integrity and material behaviour.

Objective

As a new technology, Additive Manufacturing (AM) provides an excellent opportunity to produce parts with complex geometry that would not be possible with traditional manufacturing methods. Against several advantages of AM technology, surface quality of an AM-built part might not be suitable for many applications. To solve this issue, one must use post-processing by machining process to obtain a suitable surface quality and dimensional accuracy of parts produced by AM. Regarding the machining processes, the desirable surface integrity of the machined components is one of the dominant requirements of the industries because it significantly affects the performance and service life of the final products. Inconel 718 alloy, as a difficult-to-cut material, has excellent properties. Not only few experimental studies are found in literature on machining of AM Inconel 718 alloy, but also, they have mostly limited to Conventional Machining (CM) processes. In addition, very few studies are found in literature on machining simulation of this new material due to absence of reliable material model for modeling the chip formation. To address this gap and aiming to push the fundamental science behind this problem, the main goal of the present project is to comprehensively evaluate the surface integrity condition after machining of AM Inconel 718. Firstly, the correlation between main AM parameters and machining characteristics are investigated. Then, a comparative experimental study will be conducted on CM, Cryogenic Cooling Machining (CCM) and Laser-Assisted Machining (LAM) to obtain desirable surface integrity after machining of AM Inconel 718 alloy. After that, fundamental advances for machining simulation of AM Inconel 718 will be presented. Based on this, identification of the new and reliable material model for machining simulation, innovative methods for predicting the surface integrity including microstructure changes and residual stress will be addressed at this project.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

SYDDANSK UNIVERSITET
Net EU contribution
€ 263 393,28
Address
CAMPUSVEJ 55
5230 Odense M
Denmark
Region
Danmark Syddanmark Fyn
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Partners (1)