Laser cutting machine cutting 7 types different metal materials

Laser cutting machine cutting 7 types different metal materials

Metal on the initiation of 10.6 um laser beam absorption rate is only from 0.5% ~ 10%, however, when with a power density of more than 106w/cm2 focused laser beam irradiation to the metal surface, but it can in the microsecond time soon so that the surface begins to melt. The absorption rate of most metals in the molten state has risen sharply, which is generally improved by 60%~80%.

1.Titanium and its alloys.          

Pure titanium can be very good coupling focused laser beam transformation of heat energy, auxiliary gas oxygen chemical reaction, cutting speed, but easy to generate oxide layer on the cut edge, not careful will cause too much. For the sake of safety, the use of air as an auxiliary gas is better, to ensure the quality of cutting.          
Aircraft manufacturing industry commonly used titanium alloy laser cutting quality is better, although there will be a little sticky residue at the bottom, but it is easy to clean up.

2.Nickel alloy.          

Nickel based alloy, also known as super alloy, a lot of variety. Most of them can be carried out to melt and cut.

3.Carbon steel.          

Modern laser cutting machine can cut carbon steel plate with the maximum thickness of up to 20MM, the use of oxidation and melting cutting mechanism to cut carbon steel cutting seam can be controlled in a wide range of satisfaction, the thin sheet of its cut can be narrow to about 0.1MM.

4.Stainless steel.          

Laser cutting is an effective tool for the manufacture of the stainless steel sheet as the main component. In the strict control of the laser cutting process of the heat input measures can be restricted to the edge of the heat affected zone is very small, so that it is very effective to maintain the good corrosion resistance of such materials.

5.Alloy steel.         

The majority of alloy structural steel and alloy tool steel using laser cutting method to obtain good cutting quality. Even some of the high strength materials, as long as the process parameters are properly controlled, can get straight, non stick slag cutting edge. However, for high speed tool steel and hot die steel, laser cutting machine will have the phenomenon of corrosion and slag.

6.Aluminium and alloys.          

Aluminum cutting is a melting laser cutting mechanism, which is mainly used to blow away the molten product from the cutting area. For some aluminum alloys, it should be noted that the prevention of micro cracks on the surface of the cutting seam is noticed.

7.Copper and alloys.         

Copper (copper) because the reflectivity is too high, basically can not use CO2 laser beam cutting. Brass (Red copper) using a higher laser power, auxiliary gas using air or oxygen, can be a thin sheet of cutting.

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Common failures and Solutions of CNC Router

Common failures and Solutions of CNC Router

Any machine can not be preserved intact for a long time,so we should learn to  

judge the common faults and know how to solve them.Here we share some common failures and solutions of cnc router, and we mainly have the following 15:

Ⅰ, the spindle automatically turn or can not stop

1, control card failure;

2, inverter fault

II, when opening the software, the computer prompts "open the card failed,

please check the card" prompt

1, check the driver card is not installed, or to change a PCI card slot;

2, the two data connection line to re install, check there is no phenomenon of 

broken needles;

3, the board has a problem, replace the board.

Ⅲ,Open the software when prompted: three axis alarm, initialization error four

1, check the computer and the machine two data lines have not received;

2, check the control box of the switch board of the fuse is burned, for the 

fuse;

3, check the 85V power supply is normal

Ⅳ,CNC Router appear dislocation or wrong size

1, check the path of the software is correct or not;

2, check the gap size of the screw rod and the rod of the fastening screws are 

not loose;

3, check the software parameter settings correct or not.

Ⅴ,When X axis working,the Z axis can not lift,give it the command go up,but it 

go down.

1, check whether the Z axis motor run well,also check it's power and the drive 

current.

2, check whether the Z axis motor line has bad contact or middle of the case.

Ⅵ,the spindle motor does not turn or reverse

1, check the setting parameters of the inverter;

2, the frequency of the signal line is connected to the inverter.

Ⅶ,Smashing knife phenomenon

1, Z axis motor power is not enough, the coupling loose;

2, Z axis drive current is too small, or signal line is wrong.

Ⅷ,When the software is turned on, the shaft is closed.

1, the problem of the driver or the computer output signal line contact is bad;

2, the motor line contact is bad.

Ⅸ,In the process of engraving, there is a limit phenomenon.

1, check the engraving path is beyond the scope of sculpture;

2, the soft limit of the parameters in the software settings.

Ⅹ,When turn on the machine, it doesn't work.

1, check the start button line is connected and the button is burnt out;

2, check whether the AC contactor short-circuit or burn out.

Ⅺ,Axis running only to one direction

1, check whether the normal work and the coupling line contact line is good;

2, check the motor line for a weld.

Ⅻ,Files cannot be opened normally, and the carved objects appear to be 

deformed.

1, re install the new system and software;

2, check the X, Y axis screw 

XIII,CNC Router's spindle motor suddenly stop or slow down in the process of 

work

1, the operating voltage is not stable or super load, plus a voltage regulator 

can be;

2, check the middle line is connected, whether there is a connecting thread.and screw is loose;

3, carving tools have problems.

XIV,When setting the origin of the engraving machine, sometimes forward, the 

right offset distance

1, limit switch failure, the system back to the system in the process of the 

origin of the limit switch has been closed and open. Change limit switch;

2, drive line loose. Try to fix it.

XV,CNC Router start reset, X axis, Y axis, Z axis position is uncertain

1, limit switch is bad (the limit switch is always closed), can change;

2, the drive line is bad (X axis 14 pin and 15 pin short circuit, Y axis 13 pin 

and 15 pin short circuit, Z axis 31 pin and 15 pin short circuit), change the 

drive line or short circuit can open;

3, the driver board is bad, change the drive board can.

Effect of laser output power on laser cutting

Effect of laser output power on laser cutting 
When using laser cutting machine,the laser output power is a parameter that has a direct relation with the melting ability of the processed. For getting good effect of cutting,we need increase the output power in order to improve the processing ability.

Improve processing capacity:
1, improve the laser cutting speed.          
2, increase the thickness of the processing plate.          
3, processing of aluminum, copper and other high reflection spectral reflectance factor.          
4, zoom lens from the short focal length lens.          
5, the focus of the location from the surface of the processed material changes.

We can determine whether the use of the processing conditions of the output energy is appropriate, according to the processing of the cutting surface and machining in the case of the spark. When the output power is much larger than the standard value, the thermal effect of the incision increases, and the melting loss occurs at the corner. And cut the noodles to become thick, from the upper to the lower part of the vertical.
If the output power value is far less than the standard value, the lower part of the cut is significantly thicker, become the state of digging into. And with the increase of the amount of adhesion of slag, it is difficult to remove. Mars is lagging in the cutting process in the opposite direction in the cutting process.
Suitable for the processing of the output conditions exist within a certain range, the thinner the thickness of the processing board, the wider the range of output conditions. Output processing in proper conditions, the cutting surface streak fine, lower relative to the speed of light slow.

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