CPC Main Group
B21D 19/00 Flanging or other edge treatment, e.g. of tubes (connecting by making use of folds B21D39/00; flaring-out tube ends B21D41/02)
5 direct subcodes
Child Classifications
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- B21D 19/02 by continuously-acting tools moving along the edge (edge-curling B21D19/12)
- B21D 19/08 by single or successive action of pressing tools, e.g. vice jaws
- B21D 19/12 Edge-curling
- B21D 19/16 Reverse flanging of tube ends