| 摘要 |
PROBLEM TO BE SOLVED: To provide, as a coil, a metallic sheet which is thin and yet has sufficient bending strength and bending rigidity and to provide a formed body which has high strength, high rigidity and excellent design property and is made by press-forming a metallic sheet which has the sufficient bending strength and bending rigidity and is manufactured by hot groove rolling. SOLUTION: The coil of the long length sheet having the special-shaped cross section is a magnesium or magnesium alloy sheet of 0.4-1.0 mm thickness which is provided with a plurality of grooves having a rectangular cross section extended in the longitudinal direction on one side at a certain interval in the width direction and has the other flat side, the coil of the long length sheet having the special-shaped cross section is characterized in that the grooves are formed by continuous working using one hot rolling. COPYRIGHT: (C)2008,JPO&INPIT
|
