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Processing method of sapphire sheet product containing ink frame

A sapphire and ink technology, used in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of difficulty in further improving cutting accuracy, large damage to sapphire strength, affecting the quality of sapphire sheet products, and saving machine and labor costs. , the effect of small strength damage and reduction of the number of equipment

Inactive Publication Date: 2018-05-25
LENS TECH CHANGSHA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the above comparison documents, fiber laser is used to cut sapphire, ①it will cause great damage to the strength of sapphire
② Cutting produces a lot of slag, which affects the quality of sapphire thin slice products
③The edge chipping width of the traditional fiber laser cutting machine can only be within 30 μm, and its cutting accuracy is difficult to be further improved

Method used

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  • Processing method of sapphire sheet product containing ink frame
  • Processing method of sapphire sheet product containing ink frame
  • Processing method of sapphire sheet product containing ink frame

Examples

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Embodiment 1

[0032] Step A: First, make a large sapphire substrate, and directly grind and polish it to achieve the required thickness and surface roughness of the finished product. Directly perform screen printing on a large sapphire substrate to obtain multiple ink patterns. The spacing between each pattern is about 1mm, and the screen printing pattern is about 0.5mm larger than the designed finished pattern (the outer radius of the ring is about 0.5mm larger than the finished product). The resulting product is figure 1 shown.

[0033]Step B: Use a carbon dioxide laser and use the CCD (image sensor) positioning method to cut the ink layer into the outline size required by the "finished pattern". The purpose of this step is to cut the ink layer on the ink surface with a uniform line width to ensure the next step PS (picosecond) laser cutting sapphire will not damage the ink layer and cause the ink layer to fall off, resulting in edge burrs, light leakage and other defects. The carbon di...

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Abstract

The invention provides a processing method of a sapphire sheet product containing an ink frame. The processing method comprises the following steps that A, ink layers are formed, specifically, a largesapphire substrate after being subjected to surface grinding and polishing is selected, a plurality of ink patterns are silk-printed on the large sapphire substrate, and the size of an ink area of each ink pattern is expanded outwards by 0.2 mm or above compared with the ink frame in a small sapphire sheet product obtained finally; B, ink removing is conducted through a carbon dioxide laser, specifically, the carbon dioxide laser is used to conduct linear continuous cutting to remove the ink layers of parts of areas on each ink pattern to form a transparent path used for picosecond laser processing in a next step; and C, sapphire is subjected to dotting processing through a picosecond laser, and the sapphire is subjected to thermal stress cracking through the carbon dioxide laser, so thatthe sapphire sheet product containing the ink frame is obtained. According to the provided processing method of the sapphire sheet product containing the ink frame, the production technology is optimized, the production efficiency is improved, and meanwhile, the quality of the sapphire product is further improved.

Description

technical field [0001] The present invention relates to the field of sapphire processing, in particular to a method for processing a sapphire sheet product containing an ink frame, the sapphire sheet product being, for example, a camera assembly. Background technique [0002] The traditional glass camera processing process includes steps such as cutting, profiling, flat grinding, polishing and silk screen printing, that is, including polishing and silk screen printing for each small piece of product. The complex process requires a large number of operators, and the production cost is relatively high. As sapphire materials are more and more widely used in the camera industry, traditional glass processing techniques are difficult to process due to the high hardness of sapphire. Taking the profiling process as an example, a grinding wheel in the traditional profiling process can imitate 10 pieces of glass products, but only 1-2 pieces can be imitated when used to imitate sapphi...

Claims

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Application Information

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IPC IPC(8): B23K26/38B23K26/402
CPCB23K26/38B23K26/402
Inventor 周群飞饶桥兵徐学岩
Owner LENS TECH CHANGSHA
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