Not everyone is familiar with laser treatment, but you can be distinguished by the nanosecond laser, the leather laser, the female laser, the laser guided by water, etc.
楚 Let us first control the conversion of the time unit
1 ms (milliseconds) = 0.001 second = 10-3 seconds
1 μs (microsecond) = 0.000001 = 10-6 seconds
1ns (nan seconds) = 0.000000,0001 seconds = 10-9 seconds
1PS (seconds in leather) = 0.000000000000001 second = 10-12 seconds
1FS (Flyloose) = 0.00000000000000001 second = 10-15 seconds
After clarifying the unit of time, we knew that the flying laser was an extremely ultra-short pulse treatment. Over the past ten years, laser treatment technology with ultra-short pulse has made rapid progress.
的 The meaning of the ultra-short pulse laser
People tried to use the laser for the micro-procedure very early. However, due to the broad pulse width and the low laser intensity of the laser, the material is melted and continued to evaporate. limits the precision of the treatment. It is only by reducing the effect of heat that can improve the quality of treatment.
When the laser acts on the material with the pulse of the seconds of the leather, the treatment effect will change considerably. As the pulses energy increases sharply, a high power density is sufficient to take off the external electrons. Due to the short duration of the laser and the interaction of materials, the ions were abolished from the surface of the material before passing the energy to the surrounding materials. With the advantages of cold treatment, the short pulse laser and ultra-short enters into the application of industrial production.
Laser treatment: long pulse vs ultra-short pulse
The ultra-short pulse treatment energy is extremely quickly injected into a very small function area.
Long pulse laser treatment part
Super fast laser pulse site
泛 Large application of laser treatment
Laser treatment contains a high cut and welding;
1. Drilling
In the design of the printed circuit card design, people began to replace the conventional plastic base with a ceramic base to obtain better thermal conductivity. In order to connect electronic components, it is generally necessary to drill up to hundreds of thousands of μm of small holes on the board. Therefore, it is important to ensure that the stability of the base will not be affected during the drilling process becomes very important.
The picxide laser can complete the perforated treatment of the hole with impact drilling and ensure the uniformity of the hole. In addition to the printed circuit, the leather laser can also make high quality drill holes in the plastic film, the semiconductor, the metal film and the sapphire.
100 μm of stainless steel slice, drilling, 3.3NS vs 200fs, 10,000 pulses, metastases near the threshold:
2. Planning, cutting
The laser pulse is superimposed by scanning. Usually, a large amount of scanning can be deepened in ceramic, until the depth of the line reaches 1/6 of the thickness of the material. Then separate a single module from the ceramic base along these engraving lines. This separation method is called the line.
Another separation method is to use the ultra-short impulses for abraction and cut, also known as the ablation cut. The laser is dark in the material until it is cut until it is cut. The advantages of this technology are that the shape and size of treatment holes have greater flexibility. All process steps can be performed via a leather laser.
PicllllllllLllLIKllLllLllLLLLLLOLLLOSE Laser and nanosecond lasers are treated different effects on polycarbonate materials.
3. Wiring: Remove the coating)
Another application which is often considered as a micro-procedure is to precisely eliminate the coating without damage or slight damage to the basic material. Ablation can be a large line wide wide, or a large area of a few square centimeters.
Since the thickness of the coating is generally much lower than the width of the ablation, the heat cannot be transmitted to the side. Therefore, you can use the Nano-Deuxème pulse width laser.
The medium power laser, the fiber optics of square or rectangular conduction and the flat light are distributed. For example: Use the TONG Express Trumicro 7060 laser to eliminate the glass cell glass cover from the film. The same laser can also be used to remove corrosion coating in the automotive industry and prepare for subsequent welding.
4. Structured surface
The structure can modify the physical characteristics of the surface of the material. Depending on the Lotus effect, the hydrophobic surface structure allows water to flow from the surface. The creation of the sub-semicone structure with an ultra-short pulse laser can reach this functionality and can accurately control the structure to be created by modifying the laser parameter.
The opposite effects, such as the hydrophilic surface, can also be obtained, and the micro-procedure can also create a larger structure. These processes can be used in the engine fuel tank to create certain micro-structures that reduce wear or structured welding with plastic on the metal surface.
5.
The sculpture molding must create a three -dimensional shape by obscuring the material. Although the dimensions can exceed the category of micro-procedure in the traditional sense, the precision it needs is always divided into such laser applications. The Laser Picxide can be used to treat the edge of the poly crystal diamond knife which treats the dying machines.
The laser is an ideal tool for the treatment of polystalline diamonds. The use of sculpture molding technology to treat dandruff and teeth of the grinder cutting.
The micro-procedure has a very large application prospect, and more and more daily necessities enter our vision by the laser micro-treatment.
Laser treatment belongs to contactless processing, has less follow -up process, good controllability, easy integration, high treatment efficiency, loss of materials, low environmental pollution, etc. Improve product quality, labor productivity, automation degree and reduction in material consumption.
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