Five advantages of laser processing compared with other thermal cutting methods
Laser cutting uses focused high power density laser beam to irradiate the workpiece. Therefore, the irradiated material will rapidly melt, vaporize, ablate or reach the ignition point. At the same time, the molten material is blown out through the high-speed airflow coaxial with the beam, thereby cutting the workpiece. Laser cutting is one of the thermal cutting methods. Compared with other thermal cutting methods, the special advantages of laser cutting can be summarized as follows:
Good cutting quality:
Because of the small laser spot, high energy density and fast cutting speed, laser cutting can obtain better cutting quality.
① The laser cutting incision is narrow, and both sides of the incision are parallel and perpendicular to the surface. The dimensional accuracy of the cutting position can reach ± 0.05mm.
② The cutting surface is smooth and beautiful, and the surface roughness is only tens of microns. Even laser cutting can be used as the final process without machining, and parts can be used directly.
③ After laser cutting, the width of heat affected zone is small. The properties of the material near the slit are almost ineffective. Moreover, the workpiece deformation is small, the cutting precision is high, and the geometric shape of the slit is good. The section shape of the slit is more regular. rectangle.
Five advantages of laser cutting machine processing?
High cutting efficiency:
Due to the transmission characteristics of laser, laser cutting machines are usually equipped with multiple NC worktables. And the whole cutting process can be fully CNC. During operation, it is only necessary to change the NC program to cut different shapes of 2D and 3D parts.
Fast cutting speed:
The 2mm thick low-carbon steel plate can be cut with 1200W laser, and the cutting speed can reach 15000px/min; The cutting speed of 5mm thick polypropylene resin board can reach 30000px/min. It is unnecessary to clamp and fix materials during laser cutting, which can save tooling and fixtures, and save loading and unloading auxiliary time.
Non contact cutting:
During laser cutting, the cutting torch does not contact with the workpiece, and there is no tool wear. When machining parts with different shapes, it is not necessary to change the "tool", but only to change the output parameters of the laser. Laser cutting process has low noise, small vibration and no pollution.
There are many types of cutting materials:
Compared with oxyacetylene cutting and plasma cutting, there are many types of laser cutting materials, including metal, non-metal, metal matrix and non-metal matrix composites, leather, wood and fiber. But for different materials, due to their own thermophysical properties and different laser absorption, they show different laser cutting adaptability.
To sum up, from the market situation, the laser processing market has been growing steadily. Against the background of weak macroeconomic and industrial demand, laser processing equipment has maintained a stable growth of the industry scale with its business demand in the high-end processing market.
Compared with traditional machine tool cutting and other heat treatment processes, laser processing has a variety of technical advantages and meets the requirements of high-end processing market for high precision, low wear and high efficiency.