Patent ID: 11883897
Assignee: nan
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method for welding together steel billets having down cut ends, each down cut end comprising a deformation in a cross section of the billet by one side surface of the billet extending increasingly inwardly into a profile of the billet in an end region of the billet relative to a normal square cross sectional profile of the billet away from an end portion of the billet, the deformation resulting from a previous cutting operation, the method using a flash welding device and one or more shaving cutters for removing excess weld material, to form endless bar for rolling into a rolled product, the method comprising steps of:
determining an orientation of a down cut end of a front of a billet to be welded to a rear of a previously welded billet;
determining, based on the orientation, whether the billet to be welded to the previously welded billet needs to be rotated around a longitudinal axis of the billet to align the down cut end at the front of the billet to a down cut end of the rear of the previously welded billet, so that a weld to be formed by the flash welding device can be deburred successfully by the one or more shaving cutters;
operating a billet rotation device, based on the determined orientation, to rotate the billet around the longitudinal axis of the billet, to form endless bar for rolling into a rolled product;
flash welding the aligned billets using the flash welding device; and
deburring the excess weld material from the flash welded joint of the formed endless bar with the one or more shaving cutters.