Hot bending is generally only referring to different types of induction bending. Induction bending is a highly effective way of pipe bending, as it is fast, precise, and with few errors. The induction pipe bending machine process is performed by heating a certain point of the pipe up where it then can be bent without much effort. It doesn't require any filler material and the result of the bending tends to keep distortion to a minimum. Many induction benders have also chosen this type of bending because of its energy sufficiency. After the heating process has been done, the bending doesn't take a lot of time at all.
The negative aspects of hot bending can be that the material does have to cool off afterwards, adding to the time spent on each pipe and that the machines tend to be more expensive than cold bending appliances.
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