Rotary draw bending can also use mandrel bending, as explained below. Rotary Draw Bending: This method of form-bound tube bending includes usage of dies and other components to draw tubing into the machinery and create the desired bend. This is helpful for materials like roll over cages where one continuous piece of a section is shaped.Īn example of freeform tube bending includes roll bending where pipe or tube passes through three rollers set in a pyramid structure to shape the tube.īoth form-bound tube bending and freeform tube bending can employ Computer Numerical Control (CNC) machinery to precisely control the tube bending and forming process. This is usually done through tube bending technology and presses that run the metal through the process of bending the pipe in a fluid motion without any breaks. Types of form-bound tube bending include rotary draw bending, compression bending, and mandrel bending.įreeform tube bending, on the other hand, describes bending that does not intend to conform to the shape of a die. Form-bound tube bending can be done manually in instances where a specialized piece needs one or several engineers to shape it the way it needs to be, or it can involve machinery to bend it into the intended shape. Generally, tube bending falls into two types – form-bound tube bending and freeform tube bending.įorm-bound tube bending describes a bending technique whereby the bending contour is dependent on the tool geometry and so shapes the piece of metal into the shape of a die (which is similar to a mold in that it is generally custom made for its intended application). There are a number of ways metal tube bending can take place. Some tube bending and forming might involve a tube mill or a roll forming machine, depending on the application intended for the tubing. It uses a variety of techniques tailored to the needs of the manufacturer and requires accuracy in design and development. Tube bending and forming involves more than just welding metal into various shapes and uses. In the case of steel alloys, a mix of steel with another metal is done for the purposes of avoiding corrosion of the materials as well as making the metal stronger. Ferrous materials used in bending include steel, stainless steel, or steel alloys. The materials involved in metal tube bending often fall into two categories-either the materials are ferrous (primarily made from iron) or non-ferrous (metals coming from elements other than iron). For the purpose of this resource, we are focusing on metal tube bending and forming.
![large tube bending large tube bending](https://image.made-in-china.com/44f3j00VSufsdTrazgW/Shipyard-Big-Capacity-Mandrel-Pipe-Bender-Huge-10-Large-Ms-Metal-Tube-Bending-Machine.jpg)
The processes by which metal tube bending takes place may involve a variety of methods using temperature, equipment, and materials.
![large tube bending large tube bending](https://image.made-in-china.com/2f0j00vcKukfCLnobI/Large-CNC-Tube-Bending-Tube-Forming.jpg)
Tube bending describes the process used to form metals and other types of materials into tubing or pipes.