High speed laser cutter for copper,stainless steel,aluminium
High Speed – laser cutting machine aluminum,has high cutting precision, smooth cutting surface, no burr, samll。Laser Cutting Machine Aluminum cut all kinds of metal.Cost-effective ultrasonic CNC machine for Aluminum alloy & metal workpiece。
Integrated with the top configuration in the industry, the low power laser cutting machine of IGOLDEN has high electro-optic conversion efficiency, high stability, small size, and can cut carbon steel, stainless steel, alloy steel, aluminum and its alloy, copper and its alloy, titanium and its alloy, Ni-Mo alloy, etc. It is also used in laser drilling processing and scribing of integrated circuit ceramic substrate. The series cutting machines have high efficiency, small thermal deformation, beautiful cutting joints, low costs and powerful software function.
Laser cut Copper and alloy
Pure copper (purple copper) cannot be cut with a CO2 laser beam due to its high reflectivity. Brass (copper alloy) uses higher laser power, and the auxiliary gas uses air or oxygen to cut thinner plates.
Laser cut Titanium and alloys
The laser cutting of titanium alloy commonly used in aircraft industry is of good quality. Although there will be a little sticky residue at the bottom of the slit, it is easy to clean. Pure titanium can be well coupled with the thermal energy converted by the focused laser beam. When the auxiliary gas uses oxygen, the chemical reaction is fierce and the cutting speed is fast. However, it is easy to form an oxide layer on the cutting edge. Inadvertently, it will also cause over-burning. For the sake of stability, it is better to use air as the auxiliary gas to ensure the cutting quality.
Laser cut Stainless steel
Laser cutting stainless steel uses the energy released when the laser beam is irradiated to the surface of the steel plate to melt and evaporate the stainless steel. For the manufacturing industry that uses stainless steel sheets as the main component, laser cutting stainless steel is a fast and effective processing method. The important process parameters affecting the cutting quality of stainless steel are cutting speed, laser power, air pressure and so on.
Compared with low carbon steel, the laser power and oxygen pressure required for stainless steel cutting are higher. Although stainless steel cutting achieves a satisfactory cutting effect, it is difficult to obtain a seam with no sticky residue. The method of laser beam coaxial injection blows away molten metal so that no oxide is formed on the cutting surface. This is a good method, but it is more expensive than traditional oxygen cutting. One way to replace pure nitrogen is to use filtered plant compressed air, which consists of 78% nitrogen.
When laser cutting the mirror stainless steel, in order to prevent serious burns to the plate, a laser film is required!
Laser cut Carbon steel
Because carbon steel contains carbon, the reflection of the laser is not strong, and the absorption beam is very good. Carbon steel is suitable for laser cutting processing in all metal materials. Therefore, carbon steel laser cutting machine has an unshakable position in carbon steel processing. The application of carbon steel is becoming more and more extensive. Modern laser cutting machines can cut the maximum thickness of carbon steel plates up to 20MM. The slit of carbon steel can be controlled within a satisfactory width range by the oxidation melting cutting mechanism. To about 0.1MM.
Laser cut Aluminum and alloy
Although laser cutting machine can be widely used in the processing of various metallic and non-metallic materials. However, some materials, such as copper, aluminum and their alloys, are difficult to process due to their own characteristics (high reflectivity).
At present, laser cutting of aluminum plates is widely used by fiber lasers and YAG lasers. Both devices, whether cutting aluminum or other materials, such as stainless steel and carbon steel, have good performance, but they cannot be processed thick Aluminum. Generally, the maximum thickness of 6000W can be cut to 16mm, and 4500W to 12mm, but the processing cost is high. The auxiliary gas used is mainly used to blow away the molten product from the cutting zone, and usually a better cut quality can be obtained. For some aluminum alloys, care should be taken to prevent micro-cracks on the surface of the slit.
Laser cut Alloy steel
Most alloy structural steels and alloy tool steels can obtain good trimming quality by laser cutting method. Even for some high-strength materials, as long as the process parameters are properly controlled, straight, non-sticky slag trimming can be obtained. However, for tungsten-containing high-speed tool steels and hot die steels, erosion and sticky slag will occur during laser cutting machine processing.
Laser cut Nickel alloy
There are many varieties of nickel-based alloys. Most of them can be oxidized, melted and cut.
How does a laser cutter work?
The laser beam is a series of very high-intensity light with a single wavelength or colour. When the beam passes through the beam path of the machine from the laser resonator that generates the beam, the diameter of the beam is only 334 inches. Before it is finally focused on the plate, It may bounce in different directions through multiple mirrors or “beam benders”. The focused laser beam passes through the nozzle hole before it hits the palate, and compressed gas, such as oxygen or nitrogen, flows through the nozzle hole.
Focusing the laser beam can be done through a special lens or curved mirror, which is performed in the laser cutting head. The beam must be precisely focused so that the shape of the focus point and the energy density of the point is completely circular and consistent, and are located in the nozzle By focusing a large beam of light to a single precise point, the heat density of that point is extremely high. Consider it like using a magnifying glass to focus the sun’s rays on a leaf and how to cause a fire. Now consider concentrating 6 kilowatts of energy to one point above, you can imagine how hot the spot will become.
The high power density causes the material to rapidly heat, melt and partially or completely vaporize. When cutting mild steel, the heat of the laser beam is enough to start the typical “oxyfuel” combustion process, and the laser cutting gas will be pure oxygen like an oxygen burner When cutting stainless steel or aluminium, the laser beam will only melt the material, and high-pressure nitrogen can blow the molten metal out of the slit.
On the CNC laser cutting machine, the laser cutting head moves on the metal plate in the shape of the required part, thereby cutting the part from the metal plate. The capacitive height control system maintains a very high temperature between the end of the nozzle and the plate being cut Precise distance. This distance is important because it determines the position of the focus relative to the surface of the sheet. The cutting quality can be affected by raising or lowering the focus from directly above, directly above or directly below the board.
There are many other parameters that also affect the cutting quality, but if all parameters are properly controlled, laser cutting will be a stable, reliable and very precise cutting process.