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Laser cutting machine laser drilling step

2015-11-24 714 Back to list

Laser drilling process is extremely complex thermal physics of laser and material interaction. Therefore, factors affecting the quality of laser drilling a lot. In order to obtain high-quality holes should be based on the general principle of laser drilling and characteristics that affect the quality of drilling parameters for analysis and understanding.
First, drilling strategy:


The first step, a detailed understanding of drilling and drilling material requirements;
The second step, simulation and testing;
The third step is to design a convenient, fast fixture;
The fourth step, the design process;
The fifth step, the implementation of effective drilling process and the necessary testing.

Laser cutting machine drilling step
Second, the main parameters that affect the quality of drilling
Laser drilling process is extremely complex thermal physics of laser and material interaction. Therefore, factors affecting the quality of laser drilling a lot. In order to obtain high-quality holes should be based on the general principle of laser drilling and characteristics that affect the quality of drilling parameters for analysis and understanding. These parameters include: energy of the laser pulse, the pulse width, the defocus amount, the pulse repetition frequency of the laser, the nature of the material being processed.
Third, aided process
In order to improve the accuracy of laser drilling, and sometimes need to use some auxiliary craft procedures and technical measures, including the following five points:
(A) applying a positive pressure in the surface of the workpiece or workpiece mounted on the reverse side of a low pressure chamber, can help clear the vaporized material during drilling and increased discharge of the liquid phase.
(B) following the safety position the workpiece mounted a photodetector, can penetrate or not timely detection of the workpiece.
(C) the use of a liquid film or a metal platinum cover piece, enabling reduced taper hole and prevent splashing liquid.
(Iv) In order to timely prevent melt accumulated in the hole, you can put vaporization temperature lower than the melting temperature of the material to be processed into the back of the material to be machined workpiece.
(E) the use of a laser as a working tool to fight the pores on the workpiece, and then the other way to achieve the desired accuracy. The general use of diamond-machining, aperture finishing, chemical etching method, etc. performed using a punch, a metal wire.

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