| 摘要 |
PROBLEM TO BE SOLVED: To provide a welded metal bellows relaxing the stress concentrated on the root of a welded part. SOLUTION: A plurality of metal annular plates 12 are arranged in line, and the inner peripheral edges and outer peripheral edges of adjacent annular plates are welded respectively for connecting all their circumferences by turns to form a welded metal bellows in the shape of a bellows cylinder as a whole. An annular recessed part 20 in a semicircle shape is formed at each end of the inner periphery and the outer periphery of each annular plate 12 to relax the stress concentration generated in the edge-like joint part formed in the welded part. COPYRIGHT: (C)2004,JPO
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