CNC Laser Cutting
CNC Laser Cutting is an alternate Computer Numerical Controlled procedure that uses laser innovation to cut materials. Laser Cutting is utilized as a part of creation lines and is not intended for household purposes. They must be utilized as a part of a controlled situation by an expert prepared single person. A PC coordinates a high fueled laser on to the fancied material, letting it know where and when to cut, this gives accuracy comes about that would essentially not be conceivable by hand and razor sharp edge. At the point when the laser comes into contact with the material it either vaporizes, melts or consumes with extreme heat the remove territory, a few machines utilize a plane of gas to clear out abundance material. The finished result is a great completed edge that is straight and great. Laser slicing apparatus is utilized to cut channeling and structural materials and also level sheet materials.
What is CNC Laser Cutting?
CNC stands for ‘Computer Numerical Control’. That means computer has the ability to change the design patterns into numbers, produced by Computer Aided Design Software (CAD). These converted numbers control the movement of the cutter. In this way, computer controls the cutting and engraving of the objects. A CNC Laser Cutter allows for extremely precise cutting and engraving of many materials such as wood, foam, concrete, different metals and many others. It contains a sharp and pointed router to produce clean and exact cutting of the material. This sharp cutter can even cut most organic materials and depending on the power metals as well.
Advantages of CNC Laser Cutting
- Easy and fast control of the laser power over a wide range (1100%) enables a power reduction on tight or narrow curves.
- Excellent cut quality.
- High processing speed.
- Very small heat-affected zone compared to other thermal cutting processes.
- Very low application of heat, therefore minimum shrinkage of the cut material.
- High accuracy.
- High-pressure laser cutting with nitrogen enables oxide-free cutting.
Why CNC Laser Cutting are used
Lasers are used for many purposes. One way they are used is for cutting metal plates. On mild steel, stainless steel, and aluminum plate, the laser cutting process is highly accurate, yields excellent cut quality, has a very small kerf width and small heat affect zone, and makes it possible to cut very intricate shapes and small holes.
Methods of Laser Cutting
I. Depending on the material to be cut the cutting methods used differ :
1.Fusion Cutting ( high pressure cutting):
2.The material is fused by the energy of the laser beam.
3.The gas, in this case nitrogen at high pressure (10 to 20 bar), is used to drive out the molten material from the kerf.
II. Oxidation cutting (laser torch cutting):
1.The material is heated by the laser beam to combustion temperature.The gas also protects the focusing optics from splashes.