Patent ID: 11858022
Assignee: NOVELIS INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 17:
18. A method comprising:
measuring a thickness profile of a metal substrate with a thickness profile measurement sensor, wherein the thickness profile measurement sensor is disposed at an interstand location between work stands of a rolling mill;
measuring a flatness of the metal substrate with a flatness measurement sensor, wherein the flatness measurement sensor is disposed downstream from a last work stand of the rolling mill;
receiving data at a controller from the thickness profile measurement sensor and the flatness measurement sensor;
detecting a relative location of the metal substrate with a position sensor between a first work stand of the work stands and a second work stand of the work stands;
determining a three-dimensional position of the metal substrate based on the measured thickness profile and the detected relative location of the metal substrate; and
actuating, by the controller, a roll tilt actuator such that a work stand of the rolling mill provides a desired thickness profile and a desired flatness of the metal substrate within predefined tolerances and wherein actuating comprises actuating such that the determined three-dimensional position is within a predefined tolerance of a target position.