HEATING METHOD, HEATING APPARATUS, AND FABRICATION METHOD FOR PRESS-MOLDED ARTICLE
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United States of America Patent
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Nov 20, 2015
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Nov 20, 2014
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A heating method, a heating apparatus and a method for fabricating a press-molded article using the heating method is provided. A plate workpiece has a main heating target region having a cross sectional area monotonically varying in a first direction and a sub heating target region provided adjacent to and integrally with the main heating target region. After heating the sub heating target region, the main heating target region is heated by a direct resistance heating to heat the main heating target region and the sub heating target region to be in a target temperature range. To heat the main heating target region, at least one of a pair of electrodes arranged to extend across the main heating target region in a second direction intersecting the first direction is moved in the first direction and at a constant speed, with electric current between the pair of electrodes being adjusted.
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