| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for forming a corrugated fin, which apparatus can form a two-dimensional continuous and stable flat shape at bent portions, and further to provide a forming method using the same. SOLUTION: The apparatus for forming the corrugated fin comprises forming members 3 which have an almost rectangular cross sectional shape and form the inside surface side of bent portions 1b, worms 2 which are connected so as to make the forming members 3 slide and rotate, successively move the forming members 3 from one side to the other side and gradually reduce the distance between the neighboring forming members 3, and a reference member 4 to be arranged so as to bring the upper end surfaces of the bent portions 1b into contact with a reference surface, wherein the worms 2 are configured such that the intervals between neighboring forming members 3 are gradually reduced to a required pitch of the fin by being turned, and the upper end surfaces of the bent portions 1b are formed to a required shape after arranging a plurality of the bent portions 1b on the forming members 3. By this configuration, the bent portions can be formed so as to have the continuous and stable flat shape. COPYRIGHT: (C)2007,JPO&INPIT
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