Volkswagen’s foundry in Hannover, Germany, uses Metris laser scanning to inspect the geometry of sand core parts used in the production of molded aluminum engine parts. A CMM-mounted laser scanner accurately captures the fragile sand grain surfaces of entire sand core parts, a task delivering unsatisfactory results through touch probe measurements. Reports containing graphic geometric deviations help Volkswagen instantly evaluate the quality of the entire sand core surface, providing consistent and more reliable quality monitoring of sand core production equipment. In addition, the laser scanner’s capability to accurately inspect complex free-form parts showed great added value in optimizing sand core geometry, saving time, effort and cost by avoiding design iteration during aluminum part production.
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