Types of Fiber Laser Cutting Machine Gantry

Fiber laser cutting machine CNC is widely used in all walks of life. As an important part of the fuselage, the gantry has a great impact on the efficiency, accuracy, and stability of the metal cutting laser machine, and it has attracted more and more attention. So what is the type and applicable power of the gantry of the metal fiber laser cutting machine? MYST Laser takes you to find out.

There are currently four main gantries of machines for laser cutting of metal: manganese steel gantry, aluminum profile gantry, aluminum cast gantry, and aviation aluminum gantry.

1. Manganese steel gantry: high requirements for welding and heat treatment at various stages. The large cross-sectional size of the gantry and the thick steel plate used to lead to the excessive weight of the gantry and poor dynamic response, which indirectly leads to an increase in the selection of drive motors and increases the cost of fiber laser cutting machine for metal.

2. Aluminum profile gantry: reasonable cross-section and strength can be obtained, but the welding deformation is large, the manufacturing cycle is long, and it is only used for single-piece, small-batch production.

3. Aluminum cast gantry: This gantry is currently used by most manufacturers of CNC metal laser cutting machine, but it is limited by the requirements of fluidity during casting, the mechanical properties of the material are poor, and the weight of the gantry is difficult to continue to reduce.

4. Aviation aluminum gantry: The gantry adopts a new structure, the fiber laser cutting machine sheet metal gantry extruded from aluminum profiles, which solves the poor mechanical properties of the previous gantries in the production and application of the gantry, many casting defects, and welding deformation. Large, long manufacturing cycle, only used for a series of problems such as single piece and small batch production. This type of gantry is currently the most widely used gantry on the market.

Advantages of aviation aluminum gantry:

1. Fine processing after the extrusion molding process and quenching heat aging process makes the overall rigidity and surface quality of the gantry very good, and at the same time has good toughness and ductility.

2. Based on the metal characteristics of aluminum alloy, corrosion resistance, lightweight, high rigidity, it guarantees the high-speed movement of CNC laser cutting machine fiber processing and has the perfect dynamic performance. Under the condition of meeting the accuracy, it can achieve high-speed of various graphics Cutting.

3. Long service life, which can keep the shape unchanged to the greatest extent, so as to ensure cutting accuracy and product quality

MYST Laser’s cutting laser machine metal uses a brand new cast aluminum gantry: It is manufactured with aerospace standards and formed by 4300 tons press extrusion molding. After aging treatment, its strength can reach 6061 T6 which is the strongest strength of all gantries. Aviation aluminum has many advantages, such as good toughness, lightweight, corrosion resistance, anti-oxidation, low density, and greatly increase the processing speed.

Type and Applicable Power of Fiber Laser Cutting Machine Lathe Bed

The science class of MYST Laser has started. Today we will learn about the lathe bed part of the CNC laser cutting machine metal.

The machine lathe bed of the CNC laser fiber optic cutting machine steel needs to bear the entire weight of the entire machine and the processing materials, and mainly plays the role of load-bearing support. It plays the same role as the foundation of the building. If the foundation is not strong, the appearance of the house will collapse no matter how good it looks; The machine lathe bed quality of the CNC fiber laser cutting machine metal is not up to standard, and the machine lathe bed will also be deformed, resulting in the deformation of the rail, rack, and gantry, which affects the cutting accuracy of the machine, makes the machine unable to work normally, and also affects the service life of the whole machine.

The lathe bed of mainstream laser fiber cutting machine on the market is generally divided into two types: iron cast machine lathe bed (one-piece construction) and welded machine lathe bed (tube-sheet welding).

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  Iron cast machine lathe bed：

  
  

The iron cast machine frame is habitually called a one-piece iron cast machine frame in the industry. It is made of flake graphite cast iron with a minimum tensile strength of 200MPa as the raw material and is cast at a high temperature as a whole. After multiple strict thermal aging and natural aging, it forms a bed matrix with ultra-high stability.

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  Welded machine lathe bed：

  
  

The body of the metal cutting fiber laser machine tool with a welded structure is welded by steel plates as the name implies. During the welding process, the local structure of the material changes, and due to the heating of the whole part, the uneven force of the force, resulting in serious material and structural stress. After the strict heat treatment process, it still cannot be completely eliminated, resulting in the inevitable slight fluctuation of the linear accuracy of the machine tool in the process of processing, assembling, and using. According to the different welding materials of the bed, the bed can be divided into two types: metal tube welded machine lathe bed and a metal plate welded machine lathe bed. 

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  Metal tube welded machine lathe bed ：

  
  

The metal tube welded machine lathe bed is made by welding metal square tubes one by one. The advantage is that the manufacturing process is simple, the cost is low, and the disadvantage is that it is easy to deform, and the laser cutting machine is prone to resonance when running at high speed, which causes the bed to shake and affect cutting accuracy is generally suitable for low-power laser cutting machine sheet metal.

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  Metal plate welded machine lathe bed：

  
  

The Metal plate welded machine lathe bed is supported by two steel plates with a thickness of 16-22mm, and cross-reinforced ribs are added inside, which is firm and not easy to deform. Because of the unique welding structure, it can quickly dissipate the force during the movement, so as to achieve a better shock absorption effect, which can effectively reduce the error caused by the vibration during the cutting process, making the cutting more accurate, suitable for high power laser cutting machine（above 4000W）.

The steel sheet cutting machine laser produced by our company can be equipped with a cast iron bed or welding bed according to the machine model and customer needs. Below 4000W, we are the standard metal tube welded machine lathe bed. Customers can add money to choose the metal plate welded machine lathe bed. If customers choose exchange table fiber laser cutting machine and high power laser cutting machine (4000W and above ), the bed must be a Metal plate welded machine lathe bed with higher stability and accuracy.

What Are the Cutting Requirements for Different Metal Materials?

With the rapid development and wide application of laser technology, fiber laser cutter machinery has entered our lives from the industrial field. In our application process, more and more different materials are cut. However, when using a fiber laser cutting machine to cut different materials, the cutting method used should also be adjusted appropriately. Let's take a look at the different cutting methods for different metals with the fiber laser cutting machine factory.

One, stainless steel cutting

Nitrogen is generally used for cutting stainless steel metal sheets to prevent oxidation, without burrs, and can be welded directly without post-processing. According to the characteristics of stainless steel materials, it can accelerate the fluidity of the liquid and make the cutting more efficient and faster. However, the effect of cutting with oxygen may be worse than that of nitrogen, causing the end surface to be black and not smooth.

Fiber Laser Cutter Machinery

2. Carbon steel cutting

Because carbon steel contains carbon, it does not reflect light strongly and absorbs the beam very well. Carbon steel is the most suitable for laser cutting machine processing among all metal materials, and the effect is the best. Therefore, a carbon steel laser cutting machine is used in carbon steel processing. Has an unshakable position. The application of carbon steel is becoming more and more extensive. Modern fiber 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. Narrow to about 0.1MM.

3. Aluminum and alloy cutting

Aluminum cutting is a melting 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 cut surface quality can be obtained. For some aluminum alloys, attention should be paid to prevent the occurrence of micro-cracks between the surface of the slit.

Fourth, copper and brass cutting

Like aluminum, copper and brass are highly reflective materials and need to be cut with a laser cutting machine with an "anti-reflection device". Brass with thickness below 1mm can be cut with nitrogen; copper with thickness below 2mm can be cut.