Deforming tubular bodies (corrugating tubes by applying fluid pressure B21D15/03, B21D15/10)

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Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces (stamping using resilient pads B21D22/10) > by applying fluid pressure > Deforming tubular bodies (corrugating tubes by applying fluid pressure B21D15/03, B21D15/10)

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• B21D 26/035 including an additional treatment performed by fluid pressure, e.g. perforating
• B21D 26/037 Forming branched tubes
• B21D 26/039 Means for controlling the clamping or opening of the moulds
• B21D 26/041 Means for controlling fluid parameters, e.g. pressure or temperature
• B21D 26/043 Means for controlling the axial pusher
• B21D 26/045 Closing or sealing means
• B21D 26/047 Mould construction (B21D26/037 - B21D26/045 take precedence)
• B21D 26/049 Deforming bodies having a closed end
• B21D 26/051 Deforming double-walled bodies