Sheet Metal Testing

Quality control and assurance has become increasingly important over the past decades and is now one of the most important tasks in all areas of industrial production.

For almost 100 years a test method to determine the level of quality of sheet metal exists. Abraham M. Erichsen is considered the inventor of the cupping test and he patented this test method in the early 20th Century. Meanwhile, the cupping test is adopted by the International Standards Organization (ISO) and therefore valid worldwide in all industrial applications. It serves as a quick and cost-efficient incoming goods inspection and is sometimes applied directly in production.

Another coup of Mr. Erichsen was the development of a special tool for deep-drawing cup test in 1932. Without this testing procedure the series production of hollow bodies made ​​of sheet metal would hardly be possible up to the present day.

Feature of the method: to punch out round disks from sheet metal strip and then use it to shape it with a drawing die to a cup. In this way, the quality characteristic “formability of sheet metal” is of great importance in current productions.

ERICHSEN sheet metal testing machines are suitable for a large number of sheet metal forming tests (Erichsen cupping tests, deep-drawing cup tests, bulge tests, FLC tests, etc.).