Induction bends are formed from straight motherpipe using a pipe bending machine and the induction heating process. Induction bending is simultaneously a shaping and heat treatment process. An induction coil is placed around a small section of the pipe at the bend point. It is then heated to between 800 and 2,200 degrees Fahrenheit (430 and 1,200 °C). While the pipe is hot, pressure is placed on the pipe to bend it. Induction bending is used on large pipes such as freeway signs, power plants, construction, and petroleum pipe lines.
