Title:
エクスパンデッドメタルの外形変形加工物を形成する方法並びに該方法により形成された外形変形加工物
Document Type and Number:
Japanese Patent JP2008502482
Kind Code:
A
Abstract:
A method for producing expanded metal profiles, consisting of subjecting a metal strip of width less than the development of the profile to be produced to the following operations: —forming longitudinal slits in at least that longitudinal band which is to form the central web of the profile, —bending the edges of the slits, —profiling said strip, —transversely stretching that band containing the slits, —pressing areas of said central web in correspondence with said stretched band to displace them external to the plane of said web, characterised by subjecting the bent edges to drawing to obtain radiused edging having the tangent to the free edge forming an angle not less than 90° to the surface of the strip.
Inventors:
D'Aran Sargio
Application Number:
JP2007515855A
Publication Date:
January 31, 2008
Filing Date:
June 14, 2005
Export Citation:
Assignee:
Dallan S.P.A.
International Classes:
B21D31/04; B21D5/08; B21D35/00; B21D47/00; B21D47/02; E04C2/42; E04C3/09; E04C3/04
Foreign References:
| WO2001042583A1 | 2001-06-14 | |||
| US3298081A | 1967-01-17 |
Attorney, Agent or Firm:
Kazuhiro Kiyohara