Two lecturers from the Materials Engineering Department at the University of Technology. (Dr.Ahmed Zine El Abidine and Lect. Jabar Hussein Mohamed) have published a scientific research paper entitled "Evaluation of the Mechanical Properties of Aluminum Sheets in Tungsten Electrode Protected by Inert Gas and Catheterization Treatment" in the Engineering Journal of Baghdad University
 The study also discussed the attempt to improve the mechanical properties of an alloy of aluminum alloy soldered by the welding method of the tectonized ballast protected by inert gas through surface hardening using ball extrusion technique. Three times of exposure were used and the surface of the metal was examined to show the phase changes and changes during the welding process. And measuring the hardness of microstructure. The results showed an improvement in the properties of the weld by increasing the period of exposure to the tossing of the balls.