One of the most common cutting methods in roll forming is fly cutting. This method involves cutting the formed metal while the roll forming machine is running at high speed. The fly-cutting method is favored for its efficiency and accuracy in producing precise cuts in the metal.

The fly-cutting method is accomplished through the use of cutting dies that are synchronized with the speed of the tumbler. As the metal is formed and moved through the machine, the cutting dies are activated at the precise moment to make a clean and accurate cut. This allows metal parts to be produced at high speeds with consistent and accurate dimensions.
In addition to fly-cutting methods, other cutting methods such as shearing and sawing can also be used in roll forming. Shearing involves cutting the metal with a cutting tool, while sawing uses a saw blade to cut while the roll forming machine is running. These methods can also be useful in specific situations, but the fly-cutting method is widely used for its high speed and high quality of cut.
Sawing is most frequently used on profiles with greater thicknesses, such as Upright Rack Roll Forming Machine, where thicknesses over 2MM are used most frequently.

Overall, the fly-cutting method is the most common cutting method used in the roll forming process and is favored for its efficiency, precision and high quality cuts. It plays a key role in the manufacturing industry, providing vital support in producing high quality metal parts.
