Metal forming method and apparatus
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United States of America Patent
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Mar 30, 1993
Grant Date -
N/A
app pub date -
Jan 27, 1992
filing date -
Jan 27, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus for forming fins along a web of metallic material utilizing first and second opposed endless chains, and with the first chain adapted to support the web of metallic material thereon, and comprising a plurality of spaced-apart anvil links. The upper chain includes a plurality of spaced-apart links operating in registry with the base chain and including work-engaging, fin-forming lugs which enter the gap between mutually adjacent anvil links. The apparatus further includes a chain-deflecting idler roll which deflects the base chain arcuately away from its normal plane so as to effectively reduce the spacing between adjacent anvil links and create a web back-breaking zone for achieving a firm and solid crimping of that portion of the web forced thereinto by the fin-forming lugs.
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