What is the difference between CNC cutting machine and laser cutting machine

CNC cutting machines and laser cutting machines are often seen in the cutting field. How much do you know about these two cutting machines? Do you know which CNC cutting machine or laser cutting machine has higher precision? We first understand the principles of the next two cutting methods.

The laser cutting machine is to focus the laser emitted from the laser into a high power density laser beam through the optical path system. The laser beam is irradiated on the surface of the workpiece to make the workpiece reach the melting point or boiling point, while the high-pressure gas coaxial with the beam blows the molten or vaporized metal away. Plasma cutting is a processing method that uses the heat of a high-temperature plasma arc to locally melt (and evaporate) the metal at the incision of the workpiece, and uses the momentum of the high-speed plasma to remove the molten metal to form the incision.

In general, the CNC cutting machine has a rough cutting surface, the laser cutting surface is smooth, and the plasma is rough, so it is necessary to send someone to repair the burr. Therefore, in terms of machining accuracy, plasma cutting is rough machining and laser cutting is fine machining. CNC cutting machine can be used for cutting various metal materials such as stainless steel, aluminum, copper, cast iron, carbon steel, etc. It not only has fast cutting speed, narrow kerf, smooth kerf, small heat-affected zone, low workpiece deformation, simple operation, but also has obvious advantages. energy saving effect. The laser cutting machine is fast, the incision is smooth and flat, and generally does not require subsequent processing; the cutting heat-affected zone is small, the plate deformation is small, and the slit is narrow (0.1mm~0.3mm); the incision has no mechanical stress, no shearing burr; high processing accuracy, It has good repeatability and does not damage the surface of the material; CNC programming can process any plan, and can cut the entire board with a large format without opening a mold, which is economical and time-saving.

But only for the cutting accuracy, the fiber laser cutting machine has higher processing accuracy, the plasma energy can reach within 1mm, and the laser energy can reach within 0.2mm; in terms of cost, the plasma cutting machine is much cheaper than the laser cutting machine.

The above is the difference between CNC cutting machine and laser cutting machine, so who is better for CNC cutting machine and laser cutting machine? The editor believes that whether it is a CNC cutting machine or a laser cutting machine, a good product can exert its best advantages as long as it is applied to the correct field.