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Fiber laser cutting machine material processing methods and problems

Fiber laser cutting machine material processing methods and problems

Author: Nanjing full-Rui Technology Published: 2019-09-17 09:25 views:

Fiber laser cutting machine material processing method

And what are the problems?

Right now,

Fiber laser cutting machine with its fast processing speed,

The advantage of good cutting quality,

It is widely used in various industries.

Sheet metal processing industry

Not only brings to our business

Great economic benefits,

Also gives our residents production and

Life brings convenience.

Fiber laser cutting technology is accompanied by

The development of the sheet metal processing industry,

It plays an important role in promoting social production progress.

Common processing materials for fiber laser cutting machine

There are stainless steel, carbon steel,

Aluminum, copper, titanium, etc.

Then

How are these materials commonly processed,

Let's take a look.


Carbon steel
When fiber laser cutting machine uses oxygen as the processing gas, the cutting edge will be slightly oxidized. When the thickness of the plate is 4mm, nitrogen can be used for high-pressure cutting. In this case, the cutting edges are not oxidized. For plates with a thickness of more than 10mm, using a special plate for the laser of a steel plate laser cutting machine and applying oil to the surface of the workpiece during processing can achieve better results.

Copper and brass
Both materials have high reflectivity and very good thermal conductivity. Brass with a thickness of less than 1mm can be cut with nitrogen; copper with a thickness of less than 2mm can be cut, and the processing gas must be oxygen. Copper and brass can only be cut when a "reflective absorption" device is installed on the system. Otherwise reflections can damage optical components.


stainless steel
Stainless steel is the most used in various industries. When cutting the stainless steel, the fiber laser cutting machine uses nitrogen to obtain the edge without oxidation and burr without affecting the edge oxidation. Coating the oil film on the surface of the board will get better perforation effect without reducing the processing quality.


Aluminum
Aluminum material For fiber laser cutting machine, despite its high reflectivity and thermal conductivity, aluminum materials with a thickness of less than 6mm can be cut, depending on the alloy type and laser capability. When cutting with oxygen, the cutting surface is rough and hard. When using nitrogen, the cut surface is smooth. Pure aluminum is very difficult to cut because of its high purity. It can only cut aluminum when a "reflective absorption" device is installed on the fiber laser cutting machine system. Otherwise reflections can damage optical components.


titanium
Titanium plates are cut with argon and nitrogen as process gases. Other parameters can refer to nickel chromium steel.

we know,

During the processing of various materials,

There will be more or less problems.

So how to solve these problems,

How to ensure the quality of processing?

Burrs on the workpiece when laser cutting stainless steel and aluminum-zinc plate

In this case, first of all, look at the burr situation when cutting stainless steel. You can check whether the nozzle is to be replaced and whether the guide rail movement is unstable. However, the reason for the cutting speed is not ruled out. The cutting speed sometimes leads to the situation that the board is not cut through. This situation is particularly prominent when processing aluminum-zinc plate.

Deformation of small holes during machining

This is because the machine tool does not use explosive perforation when machining small holes, but uses pulse perforation. This makes the laser energy too concentrated in a very small area, and burns the non-processed area, forming deformation of the hole, which affects the processing quality. At this time, the pulse punching method should be changed to the explosive punching method in the processing program to solve it. For the small power laser cutting machine, it is just the opposite. In the processing of small holes, the method of pulse perforation should be adopted to obtain a better surface finish.

Unusual sparks when cutting carbon steel

This condition will affect the cut surface finish and processing quality of the part. At this time, under the condition that other parameters are normal, the following conditions should be considered: the loss of the laser nozzle NOZZEL, if the loss, the nozzle should be replaced in time (in the case of no new nozzle replacement, the cutting operation gas pressure should be increased); Whether the thread at the joint of the laser head is loose. If it is loose, stop cutting immediately and re-thread it.

Fiber laser cutting machine materials processing methods and problems are different. The fiber laser cutting machine can process materials covering most metals, and the problems in the cutting process are not the same. The specific analysis should be based on the actual cutting situation, and the problems should be reported to the manufacturer in time for technical guidance.


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Nanjing Quanrui Technology Development Co., Ltd., located in Gaochun District, Nanjing, was established in 2000. It is a professional manufacturer of forging machinery industry in China. Specializing in the production of Quanrui series CNC slotting machines and fiber laser cutting machines. In recent years, our company has relied on science and technology to develop the numerical control system of CNC slotting machine and optical fiber cutting machine and equipment ...