Method of making a steel crossbeam which crossbeam forms a component of a bumper for motor vehicles, and crossbeam

US6592158B2 · kind B2 · utility

Assignee

• Benteler Aktiengesellschaft · US

Inventors

• Markus Kettler · Paderborn, DE
• Udo Klasfauseweh · Gütersloh, DE
• Peter Goer · Paderborn, DE

Key dates

• Filing date: Mar 20, 2001
• Grant date: Jul 15, 2003
• Expiry date: Mar 20, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24215
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In a method of making a steel crossbeam for use as component of a bumper for motor vehicles, a composite element is formed by attaching sheet metal strips in parallel disposition onto a broadside of a steel sheet strand across an entire length thereof, whereby the sheet metal strips have a width which is narrower than a width of the steel sheet strand. The composite element is then shaped through roll-forming in a direction transverse to the longitudinal extent of the composite element into a crossbeam.