| 摘要 |
PURPOSE: A method for forming an inner case of kimchi refrigerator is provided to perform welding operation without defects on a circumferential welding part of the bottom of the kimchi refrigerator, and dies for forming the inner case for the kimchi refrigerator is provided. CONSTITUTION: In a method for forming an inner case(10) for kimchi refrigerator comprising a cylindrical body(14) made by folding sheet type aluminum, and a base(12) welded to the bottom of the body, wherein back beads (Bb) are formed by welding on an inner surface of a circumferential part of the bottom where the body meets the base, the method for forming the inner case of the kimchi refrigerator comprises the process of drawing the inner case using a drawing punch(22) inside a circumferential part of the bottom of the inner case and a drawing die(20) comprising protrusion(20a) at a position corresponding to the back beads outside the circumferential part of the bottom of the inner case so that the inner case is formed, wherein an end part of the protrusion has a certain area.
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