A brief introduction of various kinds of laser cutting technology
2016/7/1 view:
The laser fusion cutting
In laser fusion cutting the workpiece after partial melting with the aid of the molten material ejected.Because the material transfer occurs only in the case of the liquid, so the process is called the laser fusion cutting.A laser beam with high purity inert gas cutting force molten material away from the slot, and gas by itself is not involved in cutting.The energy for the gasification is generally higher than the energy for the melt material.In laser fusion cutting, the laser beam is only absorbed by part.The maximum cutting speed increased with the increase of laser power, with the increase of the thickness of the plate and material decreases with the increase of melt temperature.Under the condition of the laser power must, limiting factor is slotted pressure and thermal conductivity of materials.Laser fusion cutting material for iron and titanium metal can be obtained without oxidation incision.Produce gasification and melting but is less than the laser power density, for steel material, in between.
Laser flame cutting
Flame cutting and laser fusion cutting the difference between using oxygen as cutting gas.By means of the interaction between oxygen and heated metal, react further heating material.Due to the effect, for the same thickness of the steel, the method can be used to get the cutting rate is higher than melting cutting.
, on the other hand, this method compared with fusion cutting quality of incision may be even worse, it will generate more wide slot, obviously increased the coarse degree of fault, the edge of heat affected zone and worse quality.
Laser flame cutting in the processing precision of model and the Angle when the result is bad, is in danger of burn off Angle), can use laser pulse mode to limit heat affected.
The laser power decided to cutting speed.
Phosgenation cutting
In the process of laser gasification cut, material in the slot gasification, this case need very high laser power.
In order to prevent material to steam condensation slotted walls, the thickness of the material must not be larger than the diameter of the laser beam.The processing and therefore only suitable for application in the case of avoid melting materials out.
Gasification cutting cannot be used for those without such as wood and some ceramic melting state and therefore is unlikely to make material of steam is condensed again.In addition, these materials are usually to achieve greater incision.In laser vaporization cutting, the optimal beam focus depends on the material thickness and beam quality.Laser power and the gasification and heat has a certain influence on the optimal focus position.
In the case of plate thickness must be, cutting speed is in the gasification temperature of the material.The laser power density is greater than, and depends on the material, cutting depth and the beam focus position.
Under the condition of the plate thickness must be, assuming that there is enough of laser power, maximum cutting speed is limited by a gas jet speed.
In laser fusion cutting the workpiece after partial melting with the aid of the molten material ejected.Because the material transfer occurs only in the case of the liquid, so the process is called the laser fusion cutting.A laser beam with high purity inert gas cutting force molten material away from the slot, and gas by itself is not involved in cutting.The energy for the gasification is generally higher than the energy for the melt material.In laser fusion cutting, the laser beam is only absorbed by part.The maximum cutting speed increased with the increase of laser power, with the increase of the thickness of the plate and material decreases with the increase of melt temperature.Under the condition of the laser power must, limiting factor is slotted pressure and thermal conductivity of materials.Laser fusion cutting material for iron and titanium metal can be obtained without oxidation incision.Produce gasification and melting but is less than the laser power density, for steel material, in between.
Laser flame cutting
Flame cutting and laser fusion cutting the difference between using oxygen as cutting gas.By means of the interaction between oxygen and heated metal, react further heating material.Due to the effect, for the same thickness of the steel, the method can be used to get the cutting rate is higher than melting cutting.
, on the other hand, this method compared with fusion cutting quality of incision may be even worse, it will generate more wide slot, obviously increased the coarse degree of fault, the edge of heat affected zone and worse quality.
Laser flame cutting in the processing precision of model and the Angle when the result is bad, is in danger of burn off Angle), can use laser pulse mode to limit heat affected.
The laser power decided to cutting speed.
Phosgenation cutting
In the process of laser gasification cut, material in the slot gasification, this case need very high laser power.
In order to prevent material to steam condensation slotted walls, the thickness of the material must not be larger than the diameter of the laser beam.The processing and therefore only suitable for application in the case of avoid melting materials out.
Gasification cutting cannot be used for those without such as wood and some ceramic melting state and therefore is unlikely to make material of steam is condensed again.In addition, these materials are usually to achieve greater incision.In laser vaporization cutting, the optimal beam focus depends on the material thickness and beam quality.Laser power and the gasification and heat has a certain influence on the optimal focus position.
In the case of plate thickness must be, cutting speed is in the gasification temperature of the material.The laser power density is greater than, and depends on the material, cutting depth and the beam focus position.
Under the condition of the plate thickness must be, assuming that there is enough of laser power, maximum cutting speed is limited by a gas jet speed.
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