The difference between cold saws and hot saws for cutting iron is what I want to talk with you.

Firstly, cutting effects:

Cold saws: the cutting surface is glossy and smooth like a mirror. There is no burrs and no noise when cold saws are cutting. The sawing process generates a little heat, and the saw blade exerts little pressure on the steel pipe, so deformation of the pipe wall and pipe mouth is less likely to occur.

Hot saws: hot saws are commonly known as computer flying saws and friction saws. High speed cutting will cause high temperature and sparks flew off in all direction, and the cutting surface is purple with burr and flashing.

Secondly, working environment and cost:

Cold saws: cold saws does not undergo heating treatment during processing. The working environment is relatively clean, the intensity of labor is decreased.

Hot saws: the working environment is relatively harsh because it requires heating. As more requirements for the physical strength and heat resistance of workers, the cost is relatively high.

Finally, follow-up treatment:

Cold saws: the internal and external has small burrs, the milling surface is smooth and clean, and no follow-up treatment is required, saving processes and raw materials.

Hot saws: the internal and external has large burrs, which requires follow-up treatment such as flat head chamfering, increasing the cost of human energy and raw material consumption.

Above all, it is obvious that the cold cut saw has better cuttting performance and economic benefit compared with hot saw.