Welding strip steel is very difficult, since faulty or deficient welds in the strip processing can lead to high tool wear or even strip breakage in the machine. This problem is well known, which is why many production companies have now switched to overlap-free welding processes that significantly reduce damage to the processing tools. However, welding equipment available on the market always exhibits the same problem: When welding the strip steel ends, a defect occurs at the beginning of the weld, a so-called “edge burn-in”.
In order to analyze and eliminate this problem, we invited tenders for a bachelor thesis last year, which was processed with great success. The result is a welding device that welds up to four cold strip tracks simultaneously and minimizes edge burn-in by means of sacrificial plates. This innovative technology reduces the damage to the processing tools and enables high efficiency due to the parallel welding of several strips.
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