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In various industries such as those for cutting sheet metal parts, laser technology is one of the most used in the processes of the industrial sector, mainly due to its precision and speed. Next, we will explain how a laser cutter works, advantages and industrial applications of laser cutting machines.
As a first point, you should know that laser cutting is a manufacturing process that uses a small, highly focused beam to cut and engrave designs, patterns, and shapes on a variety of materials. This manufacturing process is very suitable for certain materials such as wood, glass, paper, plastic, cardboard and metal.
Laser cutting is a technique used to separate parts using thermal energy.
During the cutting process, the laser beam focuses light on a point on the surface of the workpiece, raising its temperature until it melts or evaporates. Once the laser beam has crossed the surface, the cutting process begins, redirecting the laser beam to a certain point according to the chosen geometry, until the material is completely separated.
Once the cutting process is finished, it is carried out with professional and high-tech machinery, and pressurized gas (oxygen, nitrogen or carbon dioxide) is used to extract the resulting material.
These machines are made up of various parts:
The beam diameter of the laser cutting machine is usually 0.1mm and 0.3mm, and the power is about 1-3kW. This power is adjusted according to the material and its thickness. To cut reflective materials such as aluminum, a laser cutter with a power of about 6 kW may be required. This is because metals have high thermal conductivity and the ability to reflect light, so the applied heat (and thus energy) must be very high to overcome these obstacles.
These machines consist of a lot of energy, in this case light, which raises the temperature of the metal, causing it to melt and begin to evaporate, which is when the direction of the laser path begins, creating the cut. They are the most complex tools for cutting metal because they can be programmed to precisely cut perfect and complex shapes.
Among the main reasons for using laser technology in the processes of cutting sheet metal parts in the industrial sector, the following stand out:
It allows cutting of different geometric shapes, whether they are irregular, fine or with complex contours. It is suitable for pre-cutting or trimming excess material.
It can be used for the separation of different organic and inorganic materials, including metal sheets or materials that allow the construction of parts with different geometries of steel, stainless steel or aluminum sheets. No other technology can cut as many different types of organic and inorganic materials as the laser cutter can.
The laser cutting process does not require cutting dies for the manufacture of parts and, furthermore, it allows silhouette adjustments to be made.
After using the laser, it is not necessary to carry out a subsequent processing of the piece such as sealing or sanding, which means that it saves time in the manufacturing process. It even seals factory edges such as synthetics or carpet so they don't fray. This saves post-processing procedures such as mechanical sealing or sanding, depending on the type of material being processed.
Do you know the difference between laser cutting and others found on the market? check out this blog: Plasma cutting vs laser cutting
Currently, laser technology, especially its cutting process, is a working method that is frequently used to cut various materials. The high precision, speed and versatility of lasers are great advantages. Here we explain how laser cutting works and what materials it can be used for.
Laser technology allows the processing of a wide variety of plastic, textile, organic or metallic materials. Depending on the machinery used and the material of the part, it can be subjected to different processes such as cutting, engraving, marking, etc.
Laser cutting allows to process sheet metal parts and metallic materials such as:
There are 3 types or varieties of laser cutting today:
This type of laser cutting uses oxygen as a carrier gas. Gas is injected into the cutting groove under high pressure. The substance reacts with oxygen, burns and oxidizes. This interaction produces energy, which gives the laser more power. This type of laser cutting is commonly used on metal.
An inert gas such as nitrogen helps the laser expel molten material from the cutting area. This means that the energy required to make the cut is much less. This grade is used for metals in general
At Perez Precision Works, we specialize in the metal laser cutting process. We have the latest technology for both laser cutting and prototyping of even longer chains that can be used in industrial sectors.
Perez Precision Works, specialized in providing solutions to the industry, we have CO2 and Fiber laser cutting machines that allow us to modify executable programs without the need to produce a tool.
Contact us to learn more about laser cutting.
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