Patent ID: 7596980

Claim:
A method of forming a container half from a coated steel sheet, comprising: a step of providing a planar steel sheet with coatings applied to at least one side thereof; a first drawing step of drawing a central part of the steel sheet, with an outer peripheral part of the steel sheet held by a first blank holder, to produce a first formed body having a first planar part formed at the outer peripheral part; a second drawing step of drawing the first formed body, said second forming step including holding an outer peripheral edge part of the first planar part with a second blank holder while forming an inner part of the first planar part into an L-shape in cross section including a horizontal part and a vertical part, so as to produce a second formed body with a second planar part disposed outwardly from and extending from a lower end of the vertical part of the L-shaped part; a trimming step of trimming off an unnecessary outer part of the second planar part to thereby produce a third formed body having a flange part comprised of that part of the second planar part which remained after the trimming-off of the unnecessary outer part; and a bending step of bending the flange part such that the flange part becomes flush with the vertical part of the L-shaped part.