Iranian Researchers Develop New Method to Remove Welded Spots in Auto Industry
“Various industries, especially the auto and aviation industries use the connection of two identical sheets with different thicknesses in order to reduce their weight and costs,” said Mohammad Barhamand, Ph.D. graduate from Amirkabir University of Technology (AUT) and manager of the project "Analyzing metallurgical and mechanical properties of rolled steels using rolling process".
According to the researcher, the method is necessary to remove welded sports.
“Some alloys, such as aluminum and titanium, which are widely used in the aerospace industry, are difficult to weld and are very sensitive to welding. To remove the weld spots, we used the stair rolling treatment method to produce layered sheets with different properties along the length of the weldded spots,” he said.
He said that the results of mechanical tests that performed on the sheet produced by stair rolling treatment method were very satisfactory. He added that their method can help in auto industry as it can reduce the weight and costs of production and the material used in the car body.
He also said that the method could be used in aviation industry as well.
The researcher stated that the complementary activities in the project were carried out for six months at Kumamoto University in Japan in the form of a research opportunity, and noted that the experiences and points of view of professors and researchers in related field in that university along with new and advanced microscopes and the material analysis equipment located at Kumamoto University played a significant role in improving the scientific level of the project.”
Barhamand noted that one cannot find any similar project like theirs in the world, so it is totally a unique method.
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