Improved laser micropore manufacturing experiment method based on penetration detection technology

A technology of detection technology and experimental method, which is applied in the field of improved laser microhole manufacturing experiments, can solve the problems of not considering the influence of drilling quality and increasing the heat-affected zone, so as to reduce the heat influence, improve reliability, and improve efficiency effect

Inactive Publication Date: 2017-05-31
JIANGSU UNIV
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Problems solved by technology

[0005] In short, the traditional control variable method and the orthogonal test method do not consider the influence of the subsequent pulsed laser on the drilling quality afte

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  • Improved laser micropore manufacturing experiment method based on penetration detection technology
  • Improved laser micropore manufacturing experiment method based on penetration detection technology
  • Improved laser micropore manufacturing experiment method based on penetration detection technology

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0026] The penetration detection technology described in the present invention is as figure 1 As shown, the light intensity sensor 3 built in the optical system is mainly used to measure the intensity of the reflected light 4 on the material surface of the sample 1 during the drilling process, and the change of the intensity of the reflected light 4 is used to judge whether the micropore 5 of the material is opened. According to the thickness of the workpiece material, residues may appear at the exit of the hole after the through hole is formed, which may affect the measurement results, resulting in different reflected light intensities after the through hole is formed in different materials. The present invention can be based on specific actual conditions. The ...

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Abstract

The invention discloses an improved laser micropore manufacturing experiment method based on the penetration detection technology. The method includes the steps of S1, using the penetration detection technology to obtain a pulse number needed when through holes are formed during laser micropore manufacturing and a pulse number threshold; S2, using the pulse number threshold as the pulse number used under different parameter combinations in an experiment so as to improve a control variable method and an orthogonal experiment method; S3, using the improved control variable method and the improved orthogonal experiment method to research the influence of various influence factors on laser micropore manufacturing quality and improve laser micropore manufacturing process parameters. The improved laser micropore manufacturing experiment method has the advantages that the pulse number threshold which can exactly penetrate a material is obtained through the penetration detection technology, the pulse number threshold is used as the laser drilling pulse number in the experiment, influence of pulse laser on through hole taper after the through holes are formed, heat influence is reduced, research reliability is increased, laser drilling efficiency is increased, and defects of a traditional control variable method and a traditional orthogonal experiment method are overcome.

Description

technical field [0001] The invention belongs to the field of laser micro-nano manufacturing, in particular to an improved laser micro-hole manufacturing experimental method based on penetration detection technology. Background technique [0002] Laser drilling is a very important laser processing application technology. Focusing the laser beam through the focusing lens can obtain a small diameter spot and form a high temperature at the focal point. Under the action of the pulsed laser, the material is continuously melted and evaporated. Finally, the gas and the plasma formed by the hole will generate high pressure to blow the magazine out of the hole, forming micropores. Compared with the traditional mechanical drilling method, laser drilling has unique advantages and irreplaceable functions, such as high efficiency, high precision, no mechanical stress and no tool loss, etc. It has become one of the key technologies in the field of modern micro-hole processing . [0003]...

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Application Information

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IPC IPC(8): B23K26/382B23K26/0622
CPCB23K26/0622B23K26/382
Inventor 任乃飞夏凯波王琪琪
Owner JIANGSU UNIV
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