If the waviness of a steel and aluminium sheet is above the specified limits, the customer generally does not accept the annealed, galvanized or aluminium product for high value-added applications. Subsequent processing steps, especially painting, can lead to poor quality and thus downgrading.
As a result, direct online measurement is required to fully assess surface quality along the entire coil. In the new WMS brochure, AMEPA explains the principle, advantages and visualization of waviness measurement. Online measurement of waviness – contactless over the entire length and width of the finished strip surface in routine operation – is one of the industry-typical pioneering achievements of AMEPA GmbH.