Patent · US Active

Cold rolling method for manufacturing a profile

US8485012B2 · kind B2 · utility

2Cited by

9References

5Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Fritz Hermann · Landsberg, DE
Juergen Gebhard · Buchs, CH
Christoph Wiedner · Feldkirch, AT
Erwin Karle · Aitern, DE
Frank Bertram · Lindenberg im Allgäu, DE
Frank Jackel · Neunburg vorm Wald, DE

Key dates

Filing date	Jan 30, 2009
Grant date	Jul 16, 2013
Priority date	—
Expiry date	Mar 8, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21D35/006
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A cold rolling method for manufacturing a profile (16) from a one-piece rolling stock in form of initial material (6; 56) with a plurality of rolls (26, 36, 46; 6, 76, 86) each having a deforming region (28, 38, 48; 68, 78, 88) for deforming the initial material (6; 56) includes bending the initial material (6; 56) with formation at least one folded section (8) extending in a rolling direction of the initial material (6; 56), and deforming the initial material (6; 56) in its width direction with reduction of its thickness at least in one region.

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