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US 2021/0370442 A1Published application
Method for producing metal structures
AssigneeFronius International GmbH
InventorsManfred RÜHRNÖßL, Markus SCHORN, Herbert STAUFER
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AssigneeFronius International GmbH
InventorsManfred RÜHRNÖßL, Markus SCHORN, Herbert STAUFER
Estimating the term…
In order to provide an improved method for producing metal structures which allows a high level of flexibility in respect of process speed of production, material composition of the metal structure, production accuracy, and the quality of the produced metal structure, according to the invention, a second metal additive is supplied to a welding point on a metal base material, which second metal additive is fused at least by a second electric arc produced between a second electrode and the metal base material in order to produce a second weld seam at the welding point, wherein different materials are used as the first metal additive and as the second metal additive, and wherein the first metal additive and the second metal additive are supplied to the welding point sequentially in time and are fused in the region of the welding point in whichever of the first and second electric arcs is burning, in order to form the three-dimensional metal structure.
A method for the automated production of three-dimensional metal structures on a metal base material, wherein a first metal additive is supplied to a welding point on a metal base material, which first metal additive is fused at the welding point in order to produce a first weld seam at least by a first electric arc produced between a first electrode and the metal base material, and wherein a laser beam is supplied to the welding point, wherein a second metal additive is supplied to the welding point, which second metal additive is fused at the welding point in order to produce a second weld seam at least by a second electric arc produced between a second electrode and the metal base material, wherein different materials are used as the first metal additive and as the second metal additive, and wherein the first metal additive and the second metal additive are supplied to the welding point sequentially in time and are fused in the region of the welding point in whichever of the first and second electric arcs is burning, in order to form the three-dimensional metal structure.
A welding arrangement for producing metal structures on a metal base material, having optics for generating a laser beam, having a first welding torch with a first electrode for generating a first electric arc between the first electrode and the base material for fusing a first metal additive in order to produce a first weld seam on the base material, having a first supply device in order to supply the first metal additive to a welding point and having at least one control unit for controlling the welding arrangement, wherein at least one second welding torch with a second electrode for generating a second electric arc between the second electrode and the base material is arranged in the welding arrangement in order to fuse a second metal additive in order to produce a second weld seam on the base material, and a second supply device is provided in order to supply the second metal additive to the welding point, in that different materials are provided as the first metal additive and the second metal additive and in that the control unit is provided for controlling the first and second supply device, in order to supply the first metal additive and the second metal additive to the welding point sequentially in time in order to be fused in whichever of the first and second electric arcs is burning, in order to form the three-dimensional metal structure, the first and the second welding torch being designed as separate units or as a double welding torch.
Dependencies are inferred from the claim text.