Reasonable cutting procedure is helpful to improve the cutting quality of carbon steel

The research shows that the programming method of parts on the steel plate plays a decisive role in the machining quality of carbon steel cutting parts. It can be divided into three aspects: the influence of cutting sequence, the influence of cutting direction and the selection of fire point.

Influence of cutting sequence: the cutting sequence refers to the cutting sequence of nested parts on steel plate. Generally speaking, the principle of "from inside to outside" and "small to large" should be followed. Otherwise, small parts will be deformed and carbon steel parts will be scrapped.

The influence of cutting direction: the correct cutting direction should be that the last cutting edge is separated from the main plate. If the separation is too early, the thermal deformation stress will appear in carbon steel cutting, resulting in the displacement of the cutting parts, resulting in dimensional deviation.

Selection of ignition point: the most ideal ignition point is in the middle of the cutting seam outside the steel plate edge. If the distance is too large, the steel plate will be perforated, which will easily block the cutting nozzle and cause tempering; if the distance is too small, the carbon steel parts that have been cut will be damaged and scrapped.