Method of manufacturing a bent product and an apparatus and a continuous line for manufacturing the same
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United States of America Patent
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Nov 27, 2012
Grant Date -
Apr 15, 2010
app pub date -
Oct 2, 2009
filing date -
Apr 4, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A product intermittently having a bent portion which curves three-dimensionally and a quenched portion is manufactured by performing bending downstream of a support means while feeding a metal material which is supported by the support means from an upstream side towards a downstream side. A portion of the metal material is heated by a heating means downstream of the support means. A bending moment is imparted to the portion of the metal material heated by the heating means to three-dimensionally change the position of a movable roller die which is disposed downstream of the heating means and has a plurality of rolls which feed the heated metal material in the axial direction, and the metal material is quenched by spraying a cooling medium at the portion of the metal material which was heated by a cooling means disposed between the heating means and the movable roller die.
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