Manufacture of semi-finished products and structural components with locally different material thicknesses

US10710132B2 · kind B2 · utility

Assignees

• ThyssenKrupp Steel Europe AG · DE
• thyssenkrupp AG · DE

Inventors

• Sascha Sikora · Grafenau, DE
• Stefan Myslowicki · Mönchengladbach, DE
• Jens Becker · Ludwigshafen am Rhein, DE

Key dates

• Filing date: Sep 14, 2016
• Grant date: Jul 14, 2020
• Expiry date: Mar 30, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B2261/22
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for producing a semifinished product with locally different material thicknesses may involve preparing a multilayer, metal material composite, which has a plurality of layers with different ductilities, and rolling the material composite in a method for flexible rolling through a rolling gap formed between two rollers. The rolling gap may be configured such that regions with different material thicknesses are formed. In some cases, the multilayer, metal material composite is rolled at room temperature. Further, the plurality of layers of the multilayer, metal material composite may include a first outer layer disposed on a first side of a middle layer and a second outer layer disposed on a second side of the middle layer, with the second side of the middle layer being opposite the first side.