Holder for welding seam back-up tape

Metal fusion bonding – With means to cool work or product

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Details

165 47, 165 76, 165170, 219160, 228 50, B23K 3706

Patent

active

043601413

ABSTRACT:
A welding seam back-up structure for mounting on the backside of the adjacently positioned edge margins of work members or workpieces that are to be joined by a weld seam, in which an elongate back-up tape of fiberglass or other suitable material is retained in a position bridging the backside of the edges to be joined, by means of an extrusion back-up tape holding structure having high heat conductivity characteristics and in one form is fabricated with at least one surface recess for receiving the back-up tape, the recess having a central longitudinal generally arcuate groove for conforming the backside weld bead, and longitudinally extending heat radiating fins. In another form, the extrusion is provided with a cover which coacts with the fins to provide a flow passage for a coolant fluid. In another arrangement the extrusion is reversible and has back-up tape receiving recesses on opposite sides. In still another arrangement the extrusion is tubular and formed with an internal flow passage for a coolant fluid and has both internal and external heat radiating fins. The tape holding structure is releasably attachable to the workpieces by means of magnetic holding brackets.

REFERENCES:
patent: 2280150 (1942-04-01), Hasse et al.
patent: 2362505 (1944-11-01), Smith
patent: 3319044 (1967-05-01), Dick
patent: 3463526 (1969-08-01), Benincasa et al.
patent: 4295593 (1981-10-01), Kensrue

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