Method of machining an opening in a plurality of blanks

A method and a system are disclosed for making an article of manufacture from a blank defining an internal opening. A stack of blanks are aligned and the internal openings of the blanks in the stack of blanks are machined by a rotary cutting tool to a finished dimension. The blanks are clamped toget...

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Bibliographische Detailangaben
Hauptverfasser:	Zobay, Keith, Luckey, Jr., S. George, Ilinich, Andrey M, Chappuis, Laurent Bernard
Format:	Patent
Sprache:	eng
Schlagworte:	COMBINED OPERATIONS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MACHINE TOOLS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR MILLING MOTOR VEHICLES OTHER WORKING OF METAL PERFORMING OPERATIONS PUNCHING METAL TRAILERS TRANSPORTING UNIVERSAL MACHINE TOOLS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	A method and a system are disclosed for making an article of manufacture from a blank defining an internal opening. A stack of blanks are aligned and the internal openings of the blanks in the stack of blanks are machined by a rotary cutting tool to a finished dimension. The blanks are clamped together before machining in a numerically controlled machine tool. The blanks are subsequently formed individually in a sheet metal forming operation in which the inner perimeter of the internal openings is expanded as the blank is formed.