Patent ID: 7410333
Filing Date: 2008-08-12
Classification: B23C,Y10T

Abstract:
1. A hand-operated tool for opening weld seams on thin sheet metal parts comprising: a rotary drive having a chuck for holding a milling cutter that is rotatable about a rotational axis by the rotary drive, the milling cutter producing a cutting force; and a footplate having a footplate contact surface and a guide edge, the footplate contact surface being inclined relative to the rotational axis and the guide edge being offset relative to the rotational axis in the footplate contact surface; wherein the guide edge is a curved edge and confines the footplate laterally, the guide edge extending from the footplate contact surface to a side of the footplate adjacent the rotary drive and defining an edge configured for engaging a surface of a metal part in which a weld seam is being opened and thereby introducing a reaction force generated by the cutting force into the metal part surface.