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

Claim 7:
8. An apparatus 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 welding being to form endless bar for rolling into rolled product, the apparatus comprising:
a billet orientation determining means for 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, and 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 a billet to a down cut end of the rear of the previously welded billet;
a billet rotation device configured to rotate the billet, based on the determined rotation, around its longitudinal axis of the billet to achieve the alignment; and
a flash welding device for flash welding the aligned billets to form endless bar for rolling;
one or more shaving cutters for deburring excess weld material from the weld joint between the billets;
the determined rotation being so that a weld to be formed by the flash welding device can be deburred successfully by the shaving cutters.