Method and apparatus for the inductive high-frequency welding of metal products having different material thicknesses and/or material grades using at least two component induction conductors which are separable from one another

US9884387B2 · kind B2 · utility

Assignee

• WISCO Tailored Blanks GmbH · DE

Inventors

• Jens Plha · Mülheim an der Ruhr, DE
• Martin Koch · Neuenbürg, DE
• Stefan Wischmann · Berlin, DE
• Bernhard Nacke · Burgdorf, DE
• Alexander Nikanorov · Palo Alto, US
• Holger Schülbe · Bonn, DE
• Mario Schmidt · Freiberg, DE
• Henning von Löhneysen · Kassel, DE

Key dates

• Filing date: Jan 22, 2007
• Grant date: Feb 6, 2018
• Expiry date: Sep 6, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K2101/185
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method and a device for inductive radiofrequency welding of metal products, include heating by inducing radiofrequency currents with use of at least one induction conductor. The metal products and a welding zone are moved relative to one another, so that edge regions of the metal products to be welded are brought in contact in the welding zone and are welded together to form a weld seam. Metal products with different material thicknesses and/or material properties can be welded together because an induction conductor which heats the edge regions of the metal products is used which includes at least two mutually separable induction conductor components that are assigned to the respective metal product and are adapted thereto, and the edge regions to be welded are heated in a manner that is adjusted separately for the respective metal product.