COMPOSITE MATERIAL HAVING STAMPING AND MICRO-PERFORATION
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United States of America Patent
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Issued Date -
Jan 23, 2014
app pub date -
Dec 13, 2011
filing date -
Mar 25, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method includes the steps of providing a first panel of aluminium material; providing a second panel of steel material; stamping a plurality of first pimple-like bulges in the first panel; stamping a plurality of second pimple-like bulges in the second panel, wherein the arrangement of the second pimple-like bulges is congruent with the arrangement of the first pimple-like bulges; bringing together the sides of the first and second panels that are furnished with the bulges, so that the domes of each set of pimple-like bulges lie opposite each other; and clipping the first and second panels together to form a composite by ensuring that at least one tongue is broken out of each of the pimple-like bulges on the second panel and pressed into the corresponding pimple-like bulges in the first panel.
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