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Historical significance

It was probably true Viking spirit and the urge for discovery that impelled the engineer A.M. Erichsen from Porsgrunn/Norway to Settle and set up business in Berlin-Reinickendorf.

His first invention, a water-cooled ingot mould which to this day constitutes one of the most frequently used casting processes for semi-finished products in the foundry industry, enabled him to secure the financial position of his company.

A.M. Erichsen's next invention – the cupping test – was just as significant. This was the very first test method for determining the quality grade of sheet and strip metal. This test procedure was initially patented, but has since been adopted by all industrial countries within the framework of the International Standards Organisation (ISO).

Just as temperatures are measured throughout the world in Celsius or Fahrenheit, the standard for sheet metal quality is the ERICHSEN deep-drawing index.

1930 the German State Chemico-Technical Institute successfully applied the ERICHSEN deep-drawing method to measure the elasticity and adhesive properties of paints and lacquers. The results were so convincing that the procedure has since been adopted by the paint industry all over the world.

1932 the inventive Norseman A.M. Erichsen introduced tools for cupping test dies to the market, without which the batch production of deep-drawn parts made of sheet metal would hardly have been possible.