وزارة التعليم العالي و البحث العلمي
Research centre in Industrial Technologies -CRTI-
EChahid Mohammed ABASSI
Division Fabrication Additive Métallique
Surface Treatment for Additive Manufacturing
- Halim MERABTI Senior Researcher A Team leader
- Meriem MESSAOUDI Senior Researcher A
- Abdelghani Kenzour Senior Researcher B
- Afifa DERROUICHE Research fellow
- Samia SATTA Research fellow
- Hakim FATMI Research fellow
- Abdesalem KAHLOUCHE Research fellow
Metallic coating and 3D printing by CMT [2022-2024]
The Wire Arc Additive Manufacturing process by CMT (WAAM-CMT) developed by FRONIUS, provides a function diversity, including cold welding, such as the reduction of the heat supply. This technique has been adopted by many industries due to the significant economies generated by reducing downtimes and production costs. This project is carried out in a series of tasks leading to the mastery, the control and consequently the modeling of any subsequent operation. The first part of this project concerns the mastery of the CMT welding equipment as an additive manufacturing process for metal pieces on one side and on the other side as a cladding (or coating) process to repair and improve pieces performances. In the second part, we are interested by: development of metallic coatings on pieces made or repaired by the CMT process, rectification of defects and the surface treatment against corrosion, friction, wear, etc. These coatings will be realized by two thermal spray processes: wire flame and powder flame. The physicochemical, mechanical and tribological characterization of the elaborate coatings will be carried out by metallography, Vickers micro-hardness, identification of the phases formed by XRD, Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Transmission Electron Microscopy (TEM), non-destructive testing, etc. The energy modeling of the processes used will also be a stakeholder in this project, with a view to any forecast or expertise.In order to ensure good reproducibility of the work and consistency of the behavior of the finished products, we plan to automate the technique by mounting the torches on a manipulator arm or a CNC machine.
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