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Laser beam cutting machine and craft control parameter
From;  Author:Stand originally
1, laser generator.


To the utility of laser cut, use YAG solid laser besides a few circumstance outside, the majority uses phone - the CO2 gas laser that changes efficiency to be able to output higher power higher solely. Because laser cut is right demand of quality of beam of light is very high, so not all laser can use as of cut.

2, machine tool of numerical control cut.


Divide composition by 3, namely workbench (it is accurate machine tool commonly) , beam of light transmits a system (road of the light outside saying sometimes, namely the transmission optics of the beam of light inside whole light path before the beam of light that laser gives out arrives at workpiece, mechanical component) with system of personal computer numerical control. Press the means with cut ark and relatively mobile workbench, can divide for the following 3 sort:

(1) in cut process, beam of light (shoot by cutting torch) move with workbench, y of edge of general beam of light to move, workbench is in X to move.
(2) in cut process, have beam of light only (cutting torch) mobile, workbench is not mobile.
(3) in cut process, workbench is only mobile, and beam of light (cutting torch) fixed do not move.

3, 5 axes machine.


Need cut is encountered sometimes in industrial production the problem of three-dimensional and stereo component, and laser beam cutting machine of general 2 axes, 3 axes can cut workpiece of 2 dimension plane, this installs the cut machine of stock manipulator with respect to need, namely 5 axes machine.

4, laser is strong cut machine.


Come for years, the laser that abroad developed integrated laser cut and mechanical punching technology is strong cut machine, this kind of machinery uses mechanical method model to rush to the workpiece of complex form inside aperture, the predestined relationship outside be being cut with laser cut method next and the line that need Sunday run cut.


Workpiece is before cut, the appears possibly problem in the feasibility that has laser cut to its and cut process should give beforehand consideration. For instance, can be this kind of material denied have laser cut? Where is the difficulty of its cut? Whether to need to undertake trying cutting to sample? How to achieve the requirement of the quality of cut and precision? Where is the fiducial and initial drop of workpiece cut put? Etc.


The factor that affects laser cut quality is very much, a of laser cut main good point depends on can be opposite the main factor in the process carries out height to control, the workpiece that makes cut goes out satisfies the client's requirement adequately, and repeatability is very good. These main factors output the craft parameter such as power to form by pressure of position of cut speed, focus, auxiliary gas, laser.


Besides above beyond 4 the most important variable, the ingredient that produces an effect possibly to cut quality still includes parameter of beam of light (beam of light of the mode and power, polarization that stimulates beam of light, focusing that stimulates beam of light, pulse) with workpiece character (condition of surface of material surface reflectivity, material) , and cutting torch and nozzle, outside smooth route system, workpiece is fixed wait for other factor.
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