EMBOSSING PLATE HAVING EXCELLENT RIGIDITY AND ITS PRODUCTION

摘要

PURPOSE:To improve rigidity and to produce an embossed plate having a reduced weight and formability in combination by forming the shoulder parts of the recessing and projecting grooves of male and female rolls in a way as to have the prescribed radius of curvature and determining the overall thickness of the embossed plate after embossing at the specific times of the thickness of an original plate. CONSTITUTION:A metallic plate 3 is embossed by a pair of upper and lower male and female rolls 1 and 2. The radius R of curvature in the shoulder parts of the grooves of the rolls 1 and 2 is set at >=0.2 times the thickness (t) of the original plate. The thickness T over the entire part of the embossed plate is made to 1.5-2.5 times the thickness (t) of the original plate. The embossed plate having a beautiful appearance and having high rigidity and while maintaining good formability is thus obtd.