6XXX SERIES ALUMINIUM ALLOY SHEETS OR BLANKS WITH IMPROVED FORMABILITY
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Nov 30, 2022
filing date -
Nov 30, 2022
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Abstract
The invention concerns a process for producing a sheet or a plate or a blank, comprising the following successive steps: (a) casting a 6xxx alloy comprising, in wt. %: Si: 1.25-1.45; Fe: ≤0.30; Cu: ≤0.15; Mn: 0.01-0.15; Mg: 0.25-0.40; Cr: 0.03; Ni: ≤0.04; Zn: <0.15; Ti: 0.01-0.10; other elements: <0.05 each and <0.15 in total; rest aluminium; (b) heat treating; (c) hot rolling; (d) cold rolling; (e) optionally inter-annealing between hot rolling and cold rolling and/or during cold rolling and/or after cold rolling; (f) solution heat treating; (g) quenching; (h) optionally pre-aging; (i) shearing without any milling step.
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