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Method for carrying out corrosion resistant marking by utilizing ultrafast laser

An ultra-fast laser and anti-corrosion technology, which is applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of use influence, light, rainy weather, marking area corrosion, etc., and achieve a wide range of materials , good consistency and strong corrosion resistance

Inactive Publication Date: 2017-08-29
INNO LASER TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional laser marking produces marks by ablation or modification on the surface of the material. When the workpiece or sample is exposed to a special environment, the marking area will be corroded by the environment: such as medical devices, chemical devices, etc. It will be corroded by chemical reagents or medicines, and the devices exposed to the outside world will be affected by light and rainy weather; environmental corrosion will affect the use of the above-mentioned traditional laser marking devices. The method of corrosion marking is an urgent matter in this field

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  • Method for carrying out corrosion resistant marking by utilizing ultrafast laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 This implementation discloses a method of using laser for anti-corrosion marking. The steps of the method are as follows (the specific flow chart is as follows figure 1 As shown, among them, 1-the workpiece to be processed; 2-the drawing micro-nano structure diagram after laser processing;):

[0020] 1. Place the workpiece to be processed on the processing platform, and the workpiece to be processed is a metal material.

[0021] 2. Draw or import the required logo graphics according to the logo pattern.

[0022] 3. Set the laser focus position and laser processing parameters through the industrial computer, then turn on the laser, and set the laser processing parameters as follows:

[0023] The wavelength of laser processing is 266nm;

[0024] The pulse width is ps / fs level;

[0025] The frequency is below 1MHz;

[0026] The power is below 10W.

[0027] After selecting the processing parameters according to the needs, turn on the laser marking machine ...

Embodiment 2

[0034] Embodiment 2 This implementation discloses a method of using laser for anti-corrosion marking, and the steps of the method are as follows:

[0035] 1. Place the workpiece to be processed on the processing platform, and the workpiece to be processed is an alloy material.

[0036] 2. Draw or import the required logo graphics according to the logo pattern.

[0037] 3. Set the laser focus position and laser processing parameters through the industrial computer, then turn on the laser, and set the laser processing parameters as follows:

[0038] The wavelength of laser processing is 355nm;

[0039] The pulse width is ps / fs level;

[0040] The frequency is below 1MHz;

[0041] The power is below 10W.

[0042] After selecting the processing parameters according to the needs, turn on the laser marking machine to process the workpiece to be processed.

[0043] 4. Form a micro-nano structure on the surface of the material through laser processing, and form the required logo ...

Embodiment 3

[0049] Embodiment 3 This implementation discloses a method of using laser for anti-corrosion marking, and the steps of the method are as follows:

[0050] 1. Place the parts to be processed on the processing platform, such as metals, alloys, and polymer materials.

[0051] 2. Draw or import the required logo graphics according to the logo pattern.

[0052] 3. Set the laser focus position and laser processing parameters through the industrial computer, then turn on the laser, and set the laser processing parameters as follows:

[0053] The wavelength of laser processing is 532nm;

[0054] The pulse width is ps / fs level;

[0055] The frequency is below 1MHz;

[0056] The power is below 10W.

[0057] After selecting the processing parameters according to the needs, turn on the laser marking machine to process the workpiece to be processed.

[0058] 4. Form a micro-nano structure on the surface of the material through laser processing, and form the required logo pattern.

[...

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Abstract

The invention belongs to the field of laser processing and particularly relates to a method for carrying out corrosion resistant marking by utilizing ultrafast laser. The method comprises the following steps: taking a to-be-processed piece and drawing or importing a graph which needs to be marked according to a mark pattern; setting parameters of a laser focus position and laser processing; and forming a micro-nano structure in the surface of the material through laser processing. Compared with a traditional marking method, the laser marking method has the advantage that the marking is permanent. The principle of common laser marking is ablation or surface modifying treatment and obtained marks are not resistant to corrosion; the micro-nano structure is formed in the surface of the material through the laser marking to obtain the needed mark; and compared with a traditional laser marking method, the method has the characteristics that the obtained mark is generally black and has corrosion resisting property and color fastening under light.

Description

technical field [0001] The invention belongs to the field of laser processing, and in particular relates to a method for anti-corrosion marking using an ultrafast laser. Background technique [0002] With the rapid development of the laser processing field, the application of marking technology is becoming more and more extensive, including consumer electronics, daily necessities, handicrafts and so on. However, traditional laser marking produces marks by ablation or modification on the surface of the material. When the workpiece or sample is exposed to a special environment, the marking area will be corroded by the environment: such as medical devices, chemical devices, etc. It will be corroded by chemical reagents or medicines, and the devices exposed to the outside world will be affected by light and rainy weather; environmental corrosion will affect the use of the above-mentioned traditional laser marking devices. The method of corrosion marking is an urgent matter in t...

Claims

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Application Information

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IPC IPC(8): B23K26/362
CPCB23K26/361
Inventor 陶沙赵晓杰秦国双
Owner INNO LASER TECH CORP LTD
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