Comparison of Laser Cutting and CNC Lathe

With the upgrading of industrial automation, industrial production puts forward higher requirements for precision, efficiency, reliability, etc., and more advanced and efficient processing tools are essential. Ordinary processing machine tools in the international high-end processing market have been gradually replaced by laser cutting equipment, while processing machine tools and laser cutting machines coexist in my country, but with the continuous application of laser technology in the manufacturing industry, laser cutting machines have many advantages compared with punching machines Advantage.

Laser cutting is the energy released when the laser beam is irradiated on the surface of the workpiece to melt and evaporate the workpiece, so as to achieve the purpose of cutting and engraving. It has high precision, fast cutting, not limited to the limitation of cutting patterns, automatic typesetting saves materials, and the cut is smooth. , low processing cost and other characteristics, will gradually improve or replace traditional cutting process equipment.

First, the energy of the laser cutting machine is concentrated into a high-density beam through the formation of light, which is focused into a high-power density laser beam irradiation condition through the optical path system. The laser heat is absorbed by the workpiece material, and the temperature of the workpiece rises sharply. After reaching the boiling point, the material begins to Vaporization and the formation of holes, accompanied by high-pressure airflow, as the relative position of the beam and the workpiece moves, and finally the material forms a slit. Laser cutting is the use of high-power-density laser beams to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature, and evaporates to form holes. As the beam moves to the material, the holes are continuously formed with a narrow width (such as about 0.1mm). Slit to complete the cutting of the material. Ordinary CNC machine tools are machines that process metal blanks into machine parts. They do not use any light source facilities, but use grinding and cutting metal collision processing methods, which are essentially different from machine tools. The key point is that the laser cutting machine only needs to click start on the computer, and the laser cutting machine equipment can realize it, but the CNC machine tool can not.

CNC punching machine is the abbreviation of digital control punching machine, which is an automatic machine tool equipped with a program control system. The control system can logically process and decode programs with control codes or other symbolic instructions, so as to make the punch press move and process parts.

The operation and monitoring of the CNC punching machine are all completed in this CNC unit, which is the brain of the CNC punching machine. Compared with ordinary punching machines, CNC punching machines have the following characteristics:

• High processing precision and stable processing quality.

• Can carry out multi-coordinate linkage, can process parts with complex shapes and can be sheared and formed.

• When processing parts change, Generally, it only needs to change the NC program, which can save production preparation time.

• The punch itself has high precision and rigidity, and can choose a favorable processing amount, and the productivity is high.

• The high degree of automation of the punch can reduce labor intensity.

• Quality requirements for operators Higher, higher technical requirements for maintenance personnel.

As the mother machine of industrial automation development, CNC machine tools cover almost all industries. It is a bit difficult to simply distinguish the scope of application, because the formation of the industrial chain is not a single independent module, but a complete industrial chain, involving manufacturing , chemical industry, metallurgy, assembly, instrumentation, etc., as long as there are mechanical industries, CNC machine tools will be used. Moreover, the application of CNC technology has developed many special processing machine tools and auxiliary equipment, such as CNC wire cutting machines, CNC split cone milling machines , CNC pipe bending machine, CNC inspection machine, CNC plotter, CNC plotter, etc. But like other new things, CNC machine tools cannot and will not replace the original forms of various machine tools in a short period of time, but first rise rapidly within a certain range where it has shown outstanding advantages. At present, CNC machine tools have not yet competed with mass production methods, and they have been most successfully applied in the processing of small batches and complex parts.