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Method and system for performing ultraviolet ultrafast laser precise marking on titanium alloy surface

An ultrafast laser, titanium alloy technology, applied in the field of ultrafast ultrafast laser precision marking, can solve the problems of high cost and complicated procedures, and achieve the effect of good quality, accurate timing matching and good processing consistency

Pending Publication Date: 2022-04-12
南京赢羊光子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This laser marking method is complex and costly

Method used

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  • Method and system for performing ultraviolet ultrafast laser precise marking on titanium alloy surface
  • Method and system for performing ultraviolet ultrafast laser precise marking on titanium alloy surface
  • Method and system for performing ultraviolet ultrafast laser precise marking on titanium alloy surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Example 1: Precise marking of "titanium gold" pattern on the surface of titanium alloy scalpel

[0069] The laser is connected to the computer installed with the laser marking system software through the data line, and the computer inputs the controlled laser power, scanning speed, repetition frequency and other signals to the laser, and the laser is an all-solid-state picosecond laser. The controller receives the pulse synchronization signal of the laser, and at the same time controls the laser optical system 10 and the driving mechanism of the conveyor belt 12 to complete the marking.

[0070] The emission frequency of the locking laser is 100KHz, and the single pulse energy is 200uJ;

[0071] The single pulse is a single pulse photon spike wave, and the single pulse width is 10ps.

[0072] Laser wavelength is 355±5nm.

[0073] The laser window spot is 1mm, and the divergence angle is 1mrad.

[0074] The shaping optical path is a beam expanding optical path with a ...

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Abstract

The invention provides a method and a system for performing ultraviolet ultrafast laser precise marking on a titanium alloy surface. The method comprises the following steps: 1) placing a titanium alloy workpiece on an operation table; (2) a laser is arranged on one side of the operation table; (3) locking the transmitting frequency to be a certain value between 50K and 800K; (4) ultrafast laser emitted by the laser device is subjected to beam size amplification through a shaping light path, then is input into a galvanometer through a beam transmission light path, and is focused on the surface of the titanium alloy workpiece on the operation table after passing through a field lens; and 5) setting laser parameters and processing parameters under the control of the software and hardware controller, and controlling the movement of the laser beam in the X, Y and Z axes to finish the laser marking of the patterns on the surface of the titanium alloy. According to the method, precise marking with good machining consistency can be achieved without surface treatment of the titanium alloy material based on locked high-repetition-frequency and high-energy monopulse work and ultraviolet ultrafast laser with high energy consistency between monopulse.

Description

technical field [0001] The invention relates to the technical field of laser marking, in particular to a method and system for performing ultra-fast ultra-fast laser precision marking on the surface of a titanium alloy. Background technique [0002] Titanium alloy is an alloy composed of titanium and other elements. It is widely used in various fields because of its high strength, good corrosion resistance, and high heat resistance. The density of titanium alloy is generally 4.51g / cm 3 About 60% of steel. The strength of pure titanium is only close to that of ordinary steel, while some high-strength titanium alloys exceed the strength of many alloy structural steels. Therefore, the specific strength (strength / density) of titanium alloy is much greater than that of other metal structural materials, and it is used to manufacture parts with high unit strength, good rigidity and light weight, such as engine components, skeletons, skins, fasteners and lifting parts of aircraft....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/362B23K26/70B23K103/14
Inventor 不公告发明人
Owner 南京赢羊光子科技有限公司
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