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Method for assisting metal processing based on electronic dynamic control of ethanol solution

An electronic dynamic control and metal-assisting technology, which is applied in the field of femtosecond laser applications, can solve the problems that the quality and efficiency of metal micro-nano processing cannot be achieved, and achieve the effect of increasing the depth of processing craters, improving processing efficiency, and improving processing quality

Active Publication Date: 2015-05-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that existing processing methods cannot achieve both quality and efficiency of metal micro-nano processing, and to provide an auxiliary metal processing method based on electronic dynamic regulation of ethanol environment

Method used

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  • Method for assisting metal processing based on electronic dynamic control of ethanol solution
  • Method for assisting metal processing based on electronic dynamic control of ethanol solution
  • Method for assisting metal processing based on electronic dynamic control of ethanol solution

Examples

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Embodiment 1

[0030] Based on electronic dynamic regulation and control of ethanol environment assisted metal processing method, the specific steps are as follows:

[0031] Step 1. The traditional femtosecond laser is shaped into a femtosecond laser double pulse in the time domain by a pulse shaper, and the time interval between the two sub-pulses is between 0 and 3 ps, and the delay time is adjustable, so that In the process of processing, the instantaneous local electron density and the subsequent phase transition process during the interaction between the femtosecond laser and the material can be changed;

[0032] Step 2. Fix the metal sample aluminum in a container filled with ethanol solution, so that the ethanol solution covers the surface of the metal sample by 3mm;

[0033] Step 3, using the femtosecond laser double pulses obtained in Step 1 to process the metal sample.

[0034] The device for realizing the above method includes: ultrafast laser 1, half-wave plate 2, polarizer 3, 4...

Embodiment 2

[0047] Based on electronic dynamic regulation and control of ethanol environment assisted metal processing method, the specific steps are as follows:

[0048] Step 1. The traditional femtosecond laser is shaped into a femtosecond laser double pulse in the time domain by a pulse shaper, and the time interval between the two sub-pulses is between 0 and 3 ps, and the delay time is adjustable, so that In the process of processing, the instantaneous local electron density and the subsequent phase transition process during the interaction between the femtosecond laser and the material can be changed;

[0049] Step 2. Fix the copper metal sample in a container filled with ethanol solution, so that the ethanol solution does not cover the surface of the metal sample by 3mm;

[0050] Step 3, using the femtosecond laser double pulses obtained in Step 1 to process the metal sample.

[0051] The device for realizing the above method includes: ultrafast laser 1, half-wave plate 2, polarizer ...

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Abstract

The invention relates to a method for assisting metal processing based on electronic dynamic control of an ethanol solution and belongs to the field of femtosecond laser application. Aiming at the problems of low machining efficiency and poor quality of metal processing conducted in a traditional femtosecond laser air environment, ethyl alcohol is adopted for assisting processing, so that processing efficiency is improved; meanwhile, femtosecond dipulse is adopted to replace traditional femtosecond laser, local electron density and follow-up phase change process can be controlled during femtosecond laser and metal processing, and then processing quality is improved to a certain extent.

Description

technical field [0001] The invention relates to an assisted metal processing method based on electronic dynamic regulation and control of ethanol solution, which belongs to the field of femtosecond laser application. Background technique [0002] In the micro-nano processing of metal materials, obtaining higher processing quality while obtaining high processing efficiency has always been pursued. In the traditional air environment processing, due to the deposition of femtosecond laser energy on the surface of the metal sample, during the laser ablation process, the strong thermal effect and the splashing of ablation materials will lead to the accumulation of recasting on the surface of the processed sample. Thereby forming a recast layer, which in turn affects the processing quality. [0003] Previous studies have shown that when femtosecond double-pulse processing metal materials, the interaction process between femtosecond laser and material will be significantly affected...

Claims

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Application Information

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IPC IPC(8): B23K26/362B23K26/122
Inventor 姜澜张广鸣李欣
Owner BEIJING INSTITUTE OF TECHNOLOGYGY