METHOD OF AND APPARATUS FOR FORMING PRISMATIC CONTAINER MADE OF AUSTENITIC STAINLESS STEEL, AND PRISMATIC CONTAINER

摘要

PROBLEM TO BE SOLVED: To provide a container made of austenitic stainless steel having excellent shape property and uniform thickness of a sidewall. SOLUTION: In a method for forming a container made of austenitic stainless steel using a punch 11 and a die 12, the punch is cooled to the temperature of 0-30°C, the die and/or a plate holder are heated to the temperature of 60-150°C, lubricant is press-fed to a die corner part from a sealed cavity provided inside the die, and a space between the punch and the die of continuous n-processes is set to be 0.8-1.0 tn with respect to the thickness tn (n=0 - 19) of a workpiece after the preprocess. The compressive stress is constantly applied to the thickness direction of the sidewall of the container thereby, and the workpiece is subjected to the re-drawing and ironing continuously for n-processes (n=1-20). COPYRIGHT: (C)2009,JPO&INPIT