Patent · US Active

Method for producing a shaped sheet metal part having wall thicknesses differing from each other by region, and axle subframe

US10226809B2 · kind B2 · utility

0Cited by

9References

22Claims

0Family size

Assignee

BENTELER AUTOMOBILTECHNIK GMBH · DE

Inventors

Thomas Henksmeier · Wadersloh, DE
Erik Hochapfel · Dissen, DE
Dieter Friesen · Paderborn, DE

Key dates

Filing date	Mar 14, 2016
Grant date	Mar 12, 2019
Priority date	—
Expiry date	Mar 14, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21D22/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for producing a shaped sheet metal component having wall thicknesses differing from each other is disclosed including providing a sheet metal material having a constant wall thickness, pre-shaping the sheet metal material into a preform by means of a hold-down press, producing at least one bulge in an inner region such that the material is stretched and has a reduced wall thickness, flattening and/or extending the produced preform, cutting the sheet metal material in order to form a blank before, during, or after the pre-shaping, and shaping the blank into the shaped sheet metal component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.