Roll bending uses three powered rollers in a triangular arrangement. Ram bending or pressure bending places a tube or pipe in a die and uses a hydraulic ram that contains the other half of the die to press the tube or pipe. Mandrel bending or rotary-draw bending inserts a mandrel into a pipe or tube during bending so that the shape is maintained and the bends are not deformed. Hydroforming uses fluid pressure to form ferrous or nonferrous materials to the shape of a die. CNC bending produces tight radius bends, large radius bends, and elliptical bends - all on the same part. Tube bending and pipe bending services perform many different bending processes. Some tube bending and pipe bending services produce finished parts from products that are made of Inconel®. Bendable tubes and pipes are made from materials such as aluminum, brass, carbon steel, stainless steel, copper, nickel alloys, titanium, and superalloys. Although most tubes and pipes are cylindrical, products with oval, round, square, and rectangular cross sections are available. Typically, diameter is measured in inches (in).
Tube bending and pipe bending services specify tube size by outside diameter and pipe size by inside diameter. Tubes are generally smaller and less rigid than pipes, larger devices that are used in transport systems for fluids and solids in a variety of applications and industries. Tubes are hollow, usually cylindrical objects that are used as flow lines for fluids and gases in pneumatic, hydraulic, process. Tube bending and pipe bending services produce finished parts from tubes and pipes.