Femtosecond laser double-pulse glass welding strength enhancing system device

A technology of femtosecond laser and welding strength, which is applied in glass forming, glass reshaping, glass manufacturing equipment, etc., and can solve the problem of low glass welding strength

Active Publication Date: 2021-09-14
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To overcome the defects of non-optical bonding of traditional single-pulse ultrafast laser and low welding strength of glass under large gap

Method used

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  • Femtosecond laser double-pulse glass welding strength enhancing system device
  • Femtosecond laser double-pulse glass welding strength enhancing system device

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Embodiment Construction

[0016] refer to figure 1. In the preferred embodiment described below, a femtosecond laser double-pulse glass welding strength enhancement system device includes: a total reflection mirror 2 fixed on an electronically controlled one-dimensional motion platform 1, set on a high repetition rate ultrafast laser 9 The front end, the first 45° total reflection mirror on the inclined surface symmetrically distributed by the 45° inclined mirror and the half-transparent half-mirror 3 corresponding to the total reflection mirror 2 form a figure-eight "]" shaped optical path total reflection mirror group, corresponding to The top-view total reflection mirror above the back end of the semi-transparent mirror 3 is fixed on the electronically controlled three-dimensional motion platform 8 and the two stacked glass products 7 to be processed are monitored online through the lens 5 and the objective lens 6. CCD charge-coupled element 4 and lateral CCD charge-coupled element 4, wherein: the ...

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Abstract

The invention discloses a femtosecond laser double-pulse glass welding strength enhancing system device, and belongs to the technical field of ultrafast laser. According to the technical scheme, an ultra-short pulse laser beam is divided into two cross beams which are perpendicular to each other through a spectroscope, the two cross beams are focused on the interface of a to-be-welded glass product, a computer conducts online monitoring, layered scanning is conducted according to a preset scanning path, an electric control one-dimensional motion platform is controlled to precisely regulate and control the delay time of the two beams of pulses, the scanning speed of ultrafast laser pulses generated by a high-repetition-frequency ultrafast laser is regulated and controlled, femtosecond laser single-pulse light beams are modulated to be converged at the connecting position of the to-be-welded glass product and spread towards the deep position of a to-be-welded glass product material, by adjusting the femtosecond laser pulse energy and scanning track parameters, and a melting effect is formed on the surface of the connection interface of the glass product to obtain molten pools with absorption effects of heat affected zones of different sizes, so that the to-be-welded laminated glass is welded together, and a compact welding seam is formed after cooling.

Description

technical field [0001] The invention belongs to the field of ultrafast laser technology. The invention relates to a femtosecond laser double-pulse glass welding strength enhancing system device for improving the welding strength of glass. Background technique [0002] Because of its excellent physical and chemical properties, glass has been widely used in the fields of new sensors, micro-electromechanical systems, microfluidic chips, optical communications, and optical storage. Glass materials are hard and brittle, and have low thermal conductivity compared to metallic materials. When heated unevenly, cracks are prone to occur due to internal tension. In recent years, with the continuous improvement of industrialization and automation, the demand for high-precision and high-quality glass connections is also increasing. At present, the commonly used glass joining methods have become more and more difficult to meet the demand. Although traditional glue bonding can realize ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/203
CPCC03B23/203
Inventor 林奈王聪张世福
Owner 10TH RES INST OF CETC
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