METHOD AND APPARATUS FOR MANIPULATING METAL WORKPIECES

A method of forming a duct section from a web of material includes the steps of forming a series of perforations in a web of material, the series of perforations defining an outline of one of a hole or notch in a finished duct section, forming a male lock bend and a female lock seam in first opposed...

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Bibliographische Detailangaben
Hauptverfasser:	KERSKA, STEVEN J, WELTY, JOHN R, COON, TIMOTHY A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	A method of forming a duct section from a web of material includes the steps of forming a series of perforations in a web of material, the series of perforations defining an outline of one of a hole or notch in a finished duct section, forming a male lock bend and a female lock seam in first opposed edges of the web of material, forming flanges in second opposed edges of the web of material, removing the portion of material interior to the series of perforations to form the hole or notch, and bending the web of material to form the finished duct section. Un procédé de formation dune section de conduit à partir dune bande de matériau comprend les étapes pour former une série de perforations dans une bande de matériau, la série de perforations définissant un contour de lun dun trou ou dune encoche dans une section de conduit fini, former un coude de verrouillage mâle et un joint de verrouillage femelle dans des premiers bords opposés de la bande de matériau, former des brides dans des seconds bords opposés de la bande de matériau, le retrait de la partie de matériau à lintérieur de la série de perforations pour former le trou ou lencoche, et le pliage de la bande de matériau pour former la section de conduit finie.