Invention Grant
US07934300B2 Method for producing expanded metal profiles 有权
生产金属型材的方法

  • Patent Title: Method for producing expanded metal profiles
  • Patent Title (中): 生产金属型材的方法
  • Application No.: US11629786
    Application Date: 2005-06-14
  • Publication No.: US07934300B2
    Publication Date: 2011-05-03
  • Inventor: Sergio Dallan
  • Applicant: Sergio Dallan
  • Applicant Address: IT Castelfranco Veneto
  • Assignee: Dallan S.p.A.
  • Current Assignee: Dallan S.p.A.
  • Current Assignee Address: IT Castelfranco Veneto
  • Agency: Themis Law
  • Priority: ITVE2004A0027 20040617
  • International Application: PCT/EP2005/006340 WO 20050614
  • International Announcement: WO2005/123298 WO 20051229
  • Main IPC: B21D31/04
  • IPC: B21D31/04
Method for producing expanded metal profiles
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.
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