Light cutting machine and plasma cutting machine which is more suitable for modern industry applications, can tell you the answer from these 2 aspects.
First, the difference between laser cutting machine and plasma cutting machine
1. Working principle is different from the laser cutting machine is the laser emitted by the laser through the optical system focused into a high power density laser beam. The laser beam irradiates the surface of the workpiece, so that the workpiece reaches the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the melted or vaporized metal. Thus, the purpose of cutting is achieved. The plasma cutter is heated up to a certain temperature. It transfers the arc power to the workpiece. The high temperature causes the workpiece to melt and be blown off, creating a working condition for plasma arc cutting. The plasma arc is then used as a heat source to melt the metal. Cutting is an arc, so there tends to be a certain amount of arc when cutting faults. Therefore, when we need a cross-section that is right-angled, the plasma cutter is no longer applicable.
2. Cutting quality is different In terms of cutting accuracy, plasma can reach within 1mm and laser can reach within 0.2mm. Therefore, laser cutting machines are more accurate. Laser cutting machine can realize non-contact cutting with the surface of the workpiece, small cutting gap, high precision, small heat-affected zone, smooth cutting surface without burrs. Ion cutting machine cutting gap is large, the cutting end face is rough and not smooth, cutting precision is low.
3. Cutting materials are different laser cutting machine suitable for cutting a wide range of materials: metal, non-metal, ceramics, glass and so on. Plasma cutting is suitable for cutting a variety of metal materials, mainly thick plate cutting.
4. Different costs in the cost of consumables, plasma cutting machine consumables cost is very high. For example, the entire torch (nozzle, swivel ring, electrode, etc.) needs to be replaced within a few hours, and the plasma cutting machine consumes a lot of electricity. Laser cutting machine consumables cost is very low, less wearing parts, almost no maintenance.
Second, the advantages and disadvantages of laser cutting machine and plasma cutting machine
1, laser cutting machine advantages.
(1) fast laser cutting speed: sheet metal cutting speed up to 10m/min, much higher than the plasma cutting machine.
(2) high cutting quality: small deformation, smooth cutting table. Laser cutting groove is very small, laser cutting surface can be directly used for welding without grinding.
(3) high cutting accuracy: laser cutting machine accuracy up to 0.05mm, repeat positioning accuracy up to 0.02mm.
(4) Wide application range of laser cutting materials: metal and non-metal materials are available. There are applicable to non-metallic metal laser cutting machine and CO2 laser cutting machine.
(5) laser can also be used for engraving, welding, drilling and other various other operations, powerful.
2, the disadvantages of laser cutting machine:
(1) laser cutting machine cost is high, the initial investment and maintenance costs are high. Currently thin plate laser cutting has a high cost-effective, but in the plate cutting efficiency is low, unless the quality requirements are high, or use improper laser cutting.
1, the advantages of plasma cutting machine:
(1) The advantage of plasma cutting machine is that the plasma arc energy is more concentrated, the temperature is higher, the cutting speed is faster, the deformation is small, but also can cut stainless steel, aluminum and other materials.
(2) plasma cutting machine has an advantage in cutting thick plates, because in the process of thick plate cutting, you can achieve a very high cutting speed, much higher than laser and flame.
2, the disadvantages of plasma cutting machine:
(1) plasma cutting machine will produce harmful gases and arc: the principle of plasma cutting determines the intensity of the arc, noise and dust during the cutting process, all of which will pollute the environment to a certain extent. Underwater plasma cutting is generally used for medium and thick plates, so the cutting thickness is somewhat limited.
(2) Poor verticality of the cutting surface: one side of the cutting surface will have a large oblique angle and poor verticality.
(3) During the cutting process, more cutting slag is generated on the surface of the cutting process. As it does not affect the quality of the process, the slag after cutting must be ground, which also increases the labor cost.
(4) The heat-affected zone of plasma cutting is larger, and the cutting seam is wider. It is not suitable for cutting thin plates because the plate will be deformed by heat.
(5) Consumables such as cutting tools are consumed quickly. Nowadays, the cutting nozzle mainly relies on imports, and the cost is relatively high.
