وزارة التعليم العالي و البحث العلمي
Research centre in Industrial Technologies -CRTI-
EChahid Mohammed ABASSI
Energetic and mechanics
- Mouloud AISSANI-Research Director-m.aissani@crti.dz
- Lotfi BEGHDADI-Senior Researcher B-l.beghdadi@crti.dz
- Abdelhalim ZITOUNI-Senior Researcher B-a.zitouni@crti.dz
- Taki Eddine REDDAH-Research fellow-t.reddah@crti.dz
Energy analysis of welding processes Laser, TIG and FSW 2016-2018 [2016-2018]
Knowledge of heat flow, fluid flow and heat quantity used during the heating processes (welding, etc.) or energy recovery (cooling…), provides good design and proper realization of welded industrial systems. So, they also allow their improvement and optimization to have the best performance and the best benefit. These thermal and fluidic knowledge’s require for their completion the good modeling and precise numerical calculations by good mastery of simulation software.
In this aspect, the objectives to be achieved for this new project are organized around three axes:
In the first axis, attention is focused on the energy behavior of welds produced by the Laser, TIG and FSW processes (which are respectively: Light Amplification by Stimulated Emission of Radiation, welding with Tungsten electrode in Inert Gas and welding by Friction Stir Welding). This makes it possible to obtain simulation models more consistent with the experiment, for better parametric prediction. We are also interested in this axis, to master the experimental techniques in order to validate numerical models developed or improved. These studies will therefore be based on modeling and numerical simulation of a welding operation, both on the thermal level and on the hydrodynamic (fluidic) behavior level. This will also help to provide the data necessary for the mastery of the mechanical and metallurgical phenomena induced by these welding processes. These data can lead to an optimization of the welding parameters in order to obtain a better quality of the welds and to reduce the possible defects which generally appear in a weld when a bad choice of parameters.
In the second axis, we are interested in the study, design and then technological realization of a module of preheating by the magnetic induction HF (High Frequency) with its cooling system by the water. This will later be integrated in the FSW friction stir welding machine, thus increasing its tool life and its efficiency.
The last axis focuses on the development, design and then the technological realization of a cylindro-parabolic solar energy concentrator with its absorption system. This apparatus has an industrial interest and a particular importance, depending on its size, in the domain of renewable and clean energy.
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