CPC Subgroup
B21D 22/20 Deep-drawing (special deep-drawing arrangements in, or in connection with, presses B21D24/00)
Full Title
Shaping without cutting, by stamping, spinning, or deep-drawing (otherwise than using rigid devices or tools or yieldable or resilient pads B21D26/00) > Deep-drawing (special deep-drawing arrangements in, or in connection with, presses B21D24/00)
11 direct subcodes
Child Classifications
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- B21D 22/21 without fixing the border of the blank
- B21D 22/22 with devices for holding the edge of the blanks (B21D22/24 - B21D22/30 take precedence; shaping over a die without external former B21D11/02)
- B21D 22/24 involving two drawing operations having effects in opposite directions with respect to the blank
- B21D 22/26 for making peculiarly, e.g. irregularly, shaped articles
- B21D 22/28 of cylindrical articles using consecutive dies
- B21D 22/30 to finish articles formed by deep-drawing