Improving Weld Seam Quality by Forming During Post-Weld Cooling

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a method for treating weld seams using deformation that is induced by the welding process itself. Specifically, after welding parts together (with or without filler materials), the weld seam and the areas directly adjacent to it are mechanically deformed while the weld is still cooling and hot from the welding heat, which improves the characteristics of the weld and the material around it.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacturing of vehicles (such as automotive or rail) where strong and durable metal joints are required.
• Construction of pipelines and pressure vessels that need high-integrity welds.
• Production of steel structures such as bridges, cranes, and building frameworks.
• Shipbuilding and aerospace industry where welded joints must withstand high stresses.
• Repair and maintenance of metal structures or equipment with welded connections.

BenefitsContent extracted from patent full text and abstract with AI.

• Improves the mechanical properties and durability of the welded joint.
• Reduces the likelihood of defects like cracks or weaknesses in and near the weld seam.
• Makes the welding process more efficient by exploiting the residual heat for deformation treatment, potentially reducing additional processing steps.
• Leads to stronger and more reliable connections in metal components.
• May extend the lifespan of welded structures by enhancing fatigue resistance.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for deformation-induced weld seam treatment, in particular when welding with filler material for joining components, wherein after the welding process a deforming treatment of the weld seam is carried out utilizing the heat input introduced during welding and according to the invention during the cooling of the weld seam both the weld seam and the base material adjoining the weld seam on both sides is subjected to (indirect) deformation.