A sign of our special qualification is the welding test according to DIN EN 1418. This test clearly demonstrates our higher quality requirements than is usual with other companies.
A 0.3 mm thick copper beryllium sheet was formed into a cone. The ends of the plates were welded without an additional material. The special requirement is, to get the same Physical properties in the welding area in terms of extensibility and fracture behavior as in the base material. After each series of tests, metallurgical investigations were carried out until the necessary values were reached. Then the forming of the sheet could be done without loss.
Quality test after 5 million oscillation tests by the Hochschule Esslingen (University of Applied Sciences)
Cut Images of Aluminium welding.