METHOD FOR SLIVER ELIMINATION IN SHEARING ALUMINUM SHEET

Age-hardened aluminum alloy sheet (18) can be subjected to a shearing operation, such as trimming or piercing, with reduced sliver formation by first heating the region to be sheared to a temperature above about 250 ~C, immediately quenching the heated region to soften the region, and then performin...

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Bibliographische Detailangaben
1. Verfasser:	KRAJEWSKI, PAUL EDWARD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY COMBINED OPERATIONS CUTTING DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING FERROUS OR NON-FERROUS ALLOYS HAND CUTTING TOOLS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS SEVERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	Age-hardened aluminum alloy sheet (18) can be subjected to a shearing operation, such as trimming or piercing, with reduced sliver formation by first heating the region to be sheared to a temperature above about 250 ~C, immediately quenching the heated region to soften the region, and then performing the shearing operation in the softened region before age-hardening occurs.