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US 2002/0153357 A1Published application
Arc welding method and apparatus
AssigneeNewfrey LLC
InventorsRoland Kurz, Stefan Napierala, Richard L Eberling, Simon Harries
Life of this patent
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AssigneeNewfrey LLC
InventorsRoland Kurz, Stefan Napierala, Richard L Eberling, Simon Harries
Estimating the term…
A process and apparatus for welding a metal component (28) to a metal workpiece (40). The component (28) typically comprises a metal weld region (36) and a threaded connector region and the apparatus includes a weld head comprising a nozzle (8) for holding the weld region (36) of the component (28) adjacent the workpiece (40). The weld head induces a weld arc between the weld region (36) of the component (28) and the workpiece (40) to create a weld pool of molten material. The weld head subsequently moves the weld region into the weld pool to permanently join the component (28) to the workpiece (40). The apparatus further comprises a pressurised fluid source and a fluid flow control means for directing the pressurised fluid between the weld head and the component and weld pool so as to deflect any airborne fluid residue of the weld pool away from the connector region of the component (28).
A method of welding a substantially metal component to a metal workpiece, comprising the steps of:
A method as claimed in 1 in which a spiral flow path is induced in the pressurised fluid flow.
Apparatus for directing a pressurised fluid flow over a substantially metal threaded weld nut during arc welding, the fluid flow being directed along the treads of the weld nut by said apparatus so as to deflect any airborne fluid residue created by the welding process away from said component.
Welding apparatus for welding a substantially metal component to a metal workpiece, said component comprising a metal weld region and a connector region, said apparatus comprising a weld head having means for holding said weld region of said component adjacent said workpiece and inducing a weld arc between said weld region and workpiece to create a weld pool of molten material, whereby the weld head subsequently displaces said weld region into said weld pool;
Dependencies are inferred from the claim text.