Process for controlling and/or guiding the weld seam during arc welding and a paint therefor
AssigneeMankiewicz Gebr. & Co. GmbH & Co. KG
InventorsMichael Grau, Bernd Schubert
Life of this patent
Estimating the term…
Abstract
A process for the control and/or guidance of welds in electric arc welding wherein a metal or a metal alloy is applied to the edge or surface to be welded of at least one workpiece, with the metal or at least one of the principal alloying metals not being present in the workpiece or at least in slight proportions only, so that a characteristic spectral line emitted by at least one of the metals applied is observed spectroanalytically in the arc and that the weld is controlled and/or the arc guided by means of the spectral data determined.
Claims15
A process for controlling, guiding or controlling and guiding the production of a weld seam during the electric arc welding of workpieces, which process comprises the steps of:
- (a) applying an elemental metal or an elemental metal alloy to an edge or surface of at least one workpiece, wherein the elemental metal or at least one of the metals of the elemental alloy is either not present or present in slight proportions only in the workpiece;
- (b) applying a welding arc to the workpiece provided with the elemental metal or elemental metal alloy applied thereto;
- (c) spectroanalytically observing at least one characteristic spectral line in the arc emitted by at least one metal of the applied elemental metal or elemental metal alloy and deriving spectral data therefrom;
- and
- (d) controlling, guiding or controlling and guiding the arc in response to the spectral data so derived.
Dependencies are inferred from the claim text.