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Method for non-destructive cutting of large optical glass to small ones

A technology of optical glass and glass, which is applied in the direction of surface polishing machine tools, grinding/polishing equipment, machine tools suitable for grinding the edge of workpieces, etc., to achieve the effect of smooth and beautiful cutting surface, high speed and improved work efficiency

Pending Publication Date: 2015-09-09
CHANGZHOU OPTICAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the problem of excessive loss of the cutting machine when cutting glass, the present invention proposes the use of focused CO 2 The cutting method of laser processing method technology solves the problem of non-destructive cutting of optical glass from large to small, improves the quality of optical glass after cutting, saves production costs, and improves production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] (1) Take an optical glass crystal with a length of 30 cm, a width of 10 cm, and a thickness of 3.0 and place it in an ultrasonic instrument and clean it for 1.0 hour;

[0038] (2) Using a focused CO 2 Laser with a power of 150W and a speed of 380mm / s to draw lines on the glass surface, and then use non-focal CO 2 The laser scans along the scribe line and separates the glass along the scribe line under the action of thermal stress;

[0039] (3) Then adjust the output power of the laser cutting machine to 80W, the speed is 300mm / s to mark the glass surface, and then use non-focus CO 2 The laser scans along the scribe line and separates the glass along the scribe line under the action of thermal stress;

[0040] (4) Use grinding liquid to make the surface of optical glass more lubricated. Take a container that can hold 10L of water, pour the grinding liquid into 12% of the container volume, then add 70 grams of grinding liquid for each grinding, and then observe the size of the op...

example 2

[0043] (1) Take an optical glass crystal with a length of 30 cm, a width of 10 cm, and a thickness of 3.0 and place it in an ultrasonic instrument and clean it for 1.0 hour;

[0044] (2) Using a focused CO 2 Laser with a power of 150W and a speed of 400mm / s to draw lines on the glass surface, and then use non-focal CO 2 The laser scans along the scribe line and separates the glass along the scribe line under the action of thermal stress;

[0045] (3) Then adjust the output power of the laser cutting machine to 80W, the speed is 340mm / s to mark the glass surface, and then use the non-focus CO 2 The laser scans along the scribe line and separates the glass along the scribe line under the action of thermal stress;

[0046] (4) Use grinding fluid to make the surface of optical glass more lubricated. Take a container that can hold 10L of water, pour the grinding fluid into 12% of the volume of the container, then add 90 grams of grinding fluid for each grinding, and then observe the size o...

example 3

[0049] (1) Take an optical glass crystal with a length of 30 cm, a width of 10 cm, and a thickness of 3.0, and place it in an ultrasonic instrument and clean it for 1.0 hour;

[0050] (2) Using a focused CO 2 Laser with a power of 150W and a speed of 420mm / s to draw lines on the glass surface, and then use non-focal CO 2 The laser scans along the scribe line and separates the glass along the scribe line under the action of thermal stress;

[0051] (3) Then adjust the output power of the laser cutting machine to 80W, and the speed is 380mm / s to mark the glass surface, and then use non-focus CO 2 The laser scans along the scribe line and separates the glass along the scribe line under the action of thermal stress;

[0052] (4) Use grinding fluid to make the surface of optical glass more lubricated. Take a container that can hold 10L of water, pour the grinding fluid into 12% of the container volume, then add 105 grams of grinding fluid for each grinding, and then observe the size optics...

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Abstract

The invention discloses a method for non-destructive cutting of large optical glass to small ones. The method is as below: first cleaning by using ultrasonic equipment to achieve clean effect of the glass surface; adjusting and focusing CO2 laser power and operation speed twice, marking lines on the glass surface, then scanning by a non-focal CO2 laser to separate the glass under thermal stress; and finally stirring by a grinding lubricant, so that the glass collide with each other to achieve the effect of cleaning and smoothness, improve work efficiency, and reduce wear and tear of the material. The invention aims at the technical defects of the prior art, employs a CO2 laser cutting method to solve the problem of effective cutting of optical glass, reduces the material loss in production process, improves work efficiency, realizes efficient large-scale production, contributes to the formation and growth of the industry chain and has great significance to China's economic development and industrial restructuring.

Description

Technical field [0001] The present invention relates to a laser cutting processing technology, especially using focused CO 2 The technical field of laser processing methods. Background technique [0002] Optical glass is a glass that can change the propagation direction of light and can change the relative spectral distribution of ultraviolet, visible or infrared light. Optical glass in a narrow sense refers to colorless optical glass; optical glass in a broad sense also includes colored optical glass, laser glass, quartz optical glass, anti-radiation glass, ultraviolet and infrared optical glass, fiber optical glass, acousto-optic glass, magneto-optical glass, and photochromic glass. Optical glass can be used to manufacture lenses, prisms, mirrors and windows in optical instruments. [0003] Components made of optical glass are key elements in optical instruments. However, the cutting of optical glass mainly relies on imported cutting boards. The high processing cost and low ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/02B24B31/116B24C3/32
Inventor 潘相成
Owner CHANGZHOU OPTICAL MATERIAL
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