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Points to pay attention to when cutting metal

Time:2022-06-13 Views:


Laser cutting machine is a device we have been talking about. It is widely used. It can cut any kind of metal sheet. So what materials can laser equipment cut in our daily operations? During the cutting process Is it really possible to achieve perfect cutting? This requires us to master the use of clinker in the process of use, and pay attention to related matters to maximize the performance of laser cutting equipment.

At present, the main metal materials processed by laser cutting machines on the market are as follows:

 

1. Stainless steel

 

Laser Cut Stainless Steel

 

Stainless steel sheet is the mainstream component in the current manufacturing market, and the efficiency and effect of processing with a laser cutting machine is the best method. Under the strict control of the heat input in the laser cutting process, the heat-affected zone of the cutting edge can be limited to become very small, thereby effectively maintaining the good corrosion resistance of such materials.

 Points to pay attention to when cutting metal(图1)

2. Carbon steel

 

Laser Cut Carbon Steel

 

Modern laser cutting machines can cut carbon steel plates with a maximum thickness of up to 20MM. The cutting seam of carbon steel can be controlled within a satisfactory width range by using the oxidation melting cutting mechanism. For thin plates, the cutting seam can be as narrow as about 0.1MM.

 

3. Aluminum and aluminum alloys

 

Laser cut aluminum plate

Aluminum cutting is a fusion laser cutting mechanism, and the auxiliary gas used is mainly used to blow away the molten product from the cutting area, and usually a better cutting surface quality can be obtained. For some aluminum alloys, attention should be paid to preventing the generation of intergranular micro-cracks on the surface of the slit.

 

4. Alloy steel

 

Most alloy structural steels and alloy tool steels can be laser cut with good edge quality. Even for some high-strength materials, as long as the process parameters are properly controlled, straight, slag-free trimming can be obtained. However, for high-speed tool steel and hot die steel containing tungsten, there will be erosion and slag sticking during laser cutting.

 

5. Titanium and titanium alloys

 

Pure titanium can be well coupled to the heat energy converted by the focused laser beam. When oxygen is used as the auxiliary gas, the chemical reaction is intense and the cutting speed is fast, but it is easy to form an oxide layer on the cutting edge, which may cause overburning if not careful. For the sake of safety, it is better to use air as the auxiliary gas to ensure the cutting quality. The laser cutting quality of titanium alloy commonly used in the aircraft industry is good. Although there will be a little sticky slag at the bottom of the cutting seam, it is easy to remove.

 

6. Copper and copper alloys

 

Pure copper (red copper) basically cannot be cut with a CO2 laser beam due to its high reflectivity. Brass (copper alloy) uses higher laser power and air or oxygen as the auxiliary gas to cut thinner sheets.