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Glass material ultrafast laser precision welding system and method

A precision welding and ultra-fast laser technology, applied in laser welding equipment, welding equipment, welding/welding/cutting items, etc., can solve the problem of insufficient precision of large-area bonding gaps on glass surfaces, low welding efficiency, and stress distribution of micro-welded layers and installation accuracy welding quality problems, to achieve the effect of eliminating welding defects and local cracks, improving service life, and enhancing the ability to resist high and low temperature changes

Active Publication Date: 2021-01-05
西安中科光凝科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose an ultra-fast laser precision welding system and method for glass materials, so as to solve the problem of welding quality caused by the insufficient precision of the large-area bonding gap on the glass surface in the existing two-layer or multi-layer glass plate welding process , and in the welding process, only two adjacent layers of glass can be welded each time, resulting in low welding efficiency and welding quality problems caused by the stress distribution of the welded layer on the micro-welded layer and the installation accuracy

Method used

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  • Glass material ultrafast laser precision welding system and method
  • Glass material ultrafast laser precision welding system and method

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Effect test

Embodiment 1

[0051] The ultra-fast laser precision welding system for glass materials includes an optical module, a clamping and preprocessing module, and a mechanical movement module.

[0052] 1) Optical module

[0053] Such as figure 1 As shown, the module includes an ultrafast laser 1 and a beam modulation unit composed of a polarization beam splitter 3 , a Faraday rotator 5 , a reflective beam modulator 7 and a telecentric microfocus lens 11 . After the ultrafast laser beam 2 generated from the ultrafast laser 1 passes through the polarization beam splitter 3, it is phase rotated by the Faraday rotator 5, and then phase modulated by the reflective beam modulator 7, and then divided into beams of different phases and different energies. Multiple beams of laser light are reflected back, pass through the Faraday rotator 5 , and then all are reflected to the telecentric micro-focus lens 11 by the polarizing beam splitter prism 3 . Among them, the third beam 8, the fourth beam 9 and the f...

Embodiment 2

[0068] In this embodiment, the same glass material ultrafast laser precision welding system as in Embodiment 1 is used to perform one-time welding of three layers of glass plates.

[0069] The difference between the welding of the three-layer glass plates in this embodiment and that of Embodiment 1 is that the focus distribution of the beam split welding is different.

[0070] Such as Figure 4 As shown, it is a schematic diagram of focus distribution of three-layer glass laser space beam splitting welding. The laser beam is decomposed into a third beam 8, a fourth beam 9 and a fifth beam 10, and then focuses on the two bonding surfaces of the multi-layer glass 22 to be welded. exist Figure 4 (a) the focal points a and c are at the upper bonding surface of the multilayer glass to be welded 22, and the focal point b is at the lower bonding surface; Figure 4 In (b), the focus positions are reversed.

[0071] The multi-layer glass 22 to be welded is three layers of glass pla...

Embodiment 3

[0073] The difference from Embodiment 2 is that the multi-layer glass 22 to be welded in this embodiment is three layers of glass plates of different materials.

[0074] Such as Figure 6 As shown, the weldability of glass A and glass B is better, and the weldability of glass B and glass C is weaker, so it is always used Figure 6 The focus distribution mode shown is scanned, that is, double focus a and c are used at the interface between glass A and glass B, and single focus b is used at the interface between glass B and glass C. In addition, the energy ratio of the third beam 8, the fourth beam 9, and the fifth beam 10 needs to be adjusted according to the material properties. The energy of the focus b is stronger than the energy of the focus a and c.

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Abstract

The invention relates to welding of glass materials in the technical field of laser processing, and particularly relates to a glass material ultrafast laser precision welding system and method. The glass material ultrafast laser precision welding system and the method solve the welding quality problem caused by the fact that the surfaces of glass cannot be precisely attached in the existing two-layer or multi-layer glass plate welding process, and the welding quality problem caused by stress distribution between two adjacent layers of glass is solved. The glass material ultrafast laser precision welding system comprises a clamping and preprocessing module, an optical module, a planar motion module and a vertical motion mechanism; the optical module comprises an ultrafast laser and a lightbeam modulation unit composed of a polarization splitting prism, a Faraday rotator, a reflection type light beam modulator and a telecentric micro-focusing lens; and the laser beams are precisely regulated and controlled through the light beam modulation unit, and integrated control over the welding strength and interlayer stress distribution of the double-layer or multi-layer glass plate is achieved. Meanwhile, and the invention further provides a welding method based on the glass material ultrafast laser precision welding system.

Description

technical field [0001] The invention relates to the welding of glass materials in the technical field of laser processing, in particular to an ultrafast laser precision welding system and method for glass materials, especially suitable for the one-time welding of two or more layers of glass plate materials in the process of processing glass-based high-performance circuit boards High-strength precision welding. Background technique [0002] With the rise of smart phones, Internet of Things, automotive electronics, high-performance computing, 5G and artificial intelligence and other fields, especially for the application requirements of high frequency, high speed and multiple device integration in the 5G field, advanced semiconductor packaging technology has been put forward new challenge. Due to its high transparency, low loss, high insulation, high chemical stability and many other advantages, glass materials are being increasingly used in the manufacture and packaging of m...

Claims

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Application Information

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IPC IPC(8): B23K26/21B23K26/082B23K26/064B23K26/70
CPCB23K26/21B23K26/082B23K26/0648B23K26/702B23K2103/54B23K2103/52
Inventor 贺斌黄江波赵卫
Owner 西安中科光凝科技有限公司
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