ABSTRACT
The big issue in strip and plate production-both by cold and hot at rolling processes-is to obtain the desired pro- le of the nished product without exceeding the required atness value, normally xed by speci c needs. The pro le and atness are also directly linked to the quality of the nished product itself. The atness of a strip or a plate is not only one of the primary parameters that decides its price, but when waviness appears on a strip in production it can easily amplify its features if not properly controlled, and result in
a partial or total break or jamming of the metal strip in the machine, making it necessary to stop the production process. This results in increased costs for the producer.
