| 摘要 |
A flanged plate ( 1 ) for a rolling-lobe air spring has on its rounded portion an annular, closed, concave, rounded holding recess ( 13 ) which has a circular arcuate shape. The plate is provided with the recess before surface treatment. A correspondingly shaped holding bead ( 16 ) in the upper flanging tool ( 3 ) engages in this holding recess and form-tightly holds the tool ( 3 ) and the flanged plate ( 1 ). In this way, sharp-edged holding grooves, which can damage the surface of the flanged plate, are unnecessary. The flanging method, the flanging device, the flanged plate and the rolling-lobe air spring provided with a flanged plate of the above type are described.
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