Weld bead chopper

Details Weld bead chopper Weld bead chopper

B - Operations, Transporting

23

K

B23K 7/10 (2006.01) B21C 37/08 (2006.01)

Patent

CA 2291641

A weld bead chopper is provided, for use in combination with a scarfing tool which is intended to scarf a longitudinal weld bead from a tube. The chopper has a) a chopper blade which is rotatable about an axis which is substantially perpendicular to a longitudinal axis of the tube, and b) a stationary blade which is cooperable with the rotatable blade. The cooperating chopping surfaces of the rotatable and stationary blades are at a short distance from the weld bead, e.g. less than 100 mm, and preferably from 20 to 50 mm. The scarfed weld bead enters an enclosed throat which has walls to guide a scarfed weld bead towards the cooperating chopping surfaces. The throat has a first guide adjacent to the scarfing tool which directs the scarfed weld bead towards a second guide. The second guide faces the scarfing tool, and is adapted to guide the scarfed weld bead towards the cooperating chopping surfaces. The throat has a cross-sectional area substantially larger than the cross-sectional area of the scarfed weld bead. Additionally, the throat has a mouth which is sufficiently small to prevent the scarfed weld bead from exiting from the mouth.

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