Innerspec Technologies Europe, based in Madrid, has developed a new inspection method which detects potential defects during car manufacturing. This method, based on Non-Destructive Testing, combines two technologies: EMAT ultrasound and artificial vision. This combination makes possible to identify 100% of the defects arisen during the welding process of the parts. This technology enables safer cars as well as reduces manufacturing costs and minimizes the environmental impact.
The automotive industry looks for achieving safer cars, as well reducing manufacturing costs and the environmental footprint. To make it possible, the Spanish company Innerspec Technologies Europe, has developed a new generation of inspection systems that will be introduced in the production line worldwide.
The structural parts responsible for vehicle’s safety are called Tailor Welded Blanks (TWBs). Their use is considered as one of the most effective ways to reduce cars’ weight. This production method allows to reduce up to 65kg per vehicle. This reduction implies the reduction of the combustible consume, and therefore the level of CO2 emissions (6.5g/km).
Due to these benefits, around 200 and 250 million of TWBs are manufactured every year, which involves the consume of 300,000 tons of material. Nowadays, more than 9,000 tons of wasted material are rejected per year because of quality failures during production.
During the TWBs manufacturing, the welding process represents a critical step, because some production faults are imperceptible to human eye as well as for most Non-Destructive Testing techniques available so far. The presence of these defects involves these parts’ breakage during the manufacturing process, or if the worst comes to the worst, during its in-service life.