TREA

Bending tubes using mandrels or the like

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Industry

  • CPC
  • B21D9/00
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL

Current Industry

B21D9/00Bending tubes using mandrels or the like

Sub Industries

B21D9/01the mandrel being flexible and engaging the entire tube length B21D9/03and built-up from loose elements B21D9/04the mandrel being rigid B21D9/05co-operating with forming members B21D9/055Construction of forming members having more than one groove B21D9/07with one or more swinging forming members engaging tube ends only B21D9/073with one swinging forming member B21D9/076with more swinging forming members B21D9/08in press brakes or between rams and anvils or abutments Pliers with forming dies B21D9/085Pliers with forming dies B21D9/10by passing between rollers B21D9/12by pushing over a curved mandrel by pushing through a curved die B21D9/125by pushing through a curved die B21D9/14Wrinkle-bending B21D9/15using filling material of indefinite shape B21D9/16Auxiliary equipment B21D9/165Machines for filling tubes with sand B21D9/18for heating or cooling of bends
Industries