Appeal No. 1999-0130
Application No. 08/439,035
The subject matter on appeal relates to a method of
producing a motor vehicle body panel from aluminum alloy sheet.
Further details of this appealed subject matter are recited in
illustrative claims 1 and 14 reproduced below:
1. A method of producing a motor vehicle body
panel from aluminum alloy sheet comprising,
roll casting an aluminum alloy strip having a
thickness of less than about 0.5 inch,
cold rolling said strip to a thickness of less
than about 0.15 inch,
effecting said cold rolling of said cast strip
without prior thermal treatment of said roll cast
strip,
subjecting said cold rolled strip to continuous
annealing at a temperature of about 750ºF to 1000ºF
for about 1 to 60 seconds,
subsequent to said continuous annealing
converting said strip into a motor vehicle body panel,
and
said aluminum alloy being an alloy selected from
the group consisting of 3XXX and 5XXX.
14. A method of producing a motor vehicle body
panel from aluminum alloy sheet comprising,
roll casting an aluminum alloy strip having a
thickness of less than about 0.5 inch,
cold rolling said strip to a thickness of less
than about 0.15 inch,
effecting said cold rolling of said roll strip
without prior thermal treatment of said cast strip,
subjecting said cold rolled strip to solution
heat treatment at a temperature of about 800ºF to
1100ºF for about 1 to 60 seconds,
and 14. According to the advisory action of March 26, 1998
(paper 10), the amendment has been entered.
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