Patent ID: 11897013
Assignee: BOOTHROYD DEWHURST, INC.
Field: Control (Instruments)
Classification: CPC B  G  Y | IPC B  G

Claim 13:
14. The method of claim 13, further comprising:
calculating an estimated surface exit temperature of a metal work product resulting from an extrusion of a metal work product using the extrusion press machine at the calculated extrusion force, the initial temperature of the metal work product prior to the extrusion, and an initial extrusion speed of the metal work product;
comparing the estimated surface exit temperature with a target exit temperature of the metal work product;
automatically increasing or decreasing the initial temperature of the metal work product prior to the extrusion based on the comparison between the estimated surface exit temperature and the target exit temperature, calculating an extrusion speed of the metal work product that occurs at an extrusion force of the extrusion press machine at the increased or decreased initial temperature of the metal work product, and recalculating the estimated surface exit temperature using the increased or decreased initial temperature of the metal work product and the calculated extrusion speed until the estimated surface exit temperature equals the target exit temperature; and at least one of:
commanding the extrusion press machine to apply the extrusion force to the metal work product while operating the extrusion press machine at the calculated extrusion speed of the metal work product that occurs at the extrusion force of the extrusion press machine at the increased or decreased initial temperature of the metal work product,
commanding a billet heating furnace to vary the initial temperature of the metal work product, and
commanding a billet cutting/shearing device to vary the length of the metal work product.