Method for laser polishing glass and polishing method for glass hole and glass sheet
A processing method and technology of glass flakes, which are applied in the polishing process of glass flakes, laser polishing glass, and glass holes, can solve problems such as fragments caused by surface defects, quality instructions for unfinished hole wall processing, and glass microcracks, etc., to improve glass mechanics. performance, solve micro-cracks on cut surface, and optimize the effect of plane quality
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Embodiment 1
[0045] The polishing process of the glass hole of embodiment 1, comprises the following steps:
[0046] 1. Use the first laser (green laser, wavelength 532nm) to irradiate the cutting contour of the preset through hole on the glass (thickness < 0.2 mm), and the glass is broken along the cutting contour;
[0047] 2. Use the second laser (CO 2 Continuous laser, wavelength 10.6um, power 45-55W, spot size 10um) from the first starting point of the cut through hole to the second starting point on the polishing contour line of the glass with an arc line, and irradiating along the polishing contour line , so that the glass on both sides of the polishing contour line evaporates to obtain polished glass holes; the cutting contour line and the polishing contour line are concentric circles; the difference between the radii of the concentric circles is 0.5mm; figure 1 shown,
[0048] in CO 2 When the continuous laser is irradiated on a certain place on the polishing contour line, the l...
Embodiment 2
[0049] Example 2 Polishing of glass sheet
[0050] Proceed as follows:
[0051] 1. Use infrared laser (pulse width is picosecond level, wavelength is 1064mm, repetition frequency is 100kHz, average power of infrared laser source is 40-50W, each group of repeated pulses is 6-8, spot diameter is 3um) at a thickness of 0.1mm The high-alumina glass is irradiated along the cutting contour of the preset glass sheet, and cracks are generated on the cutting contour;
[0052] 2. Use infrared laser (pulse width is picosecond level, wavelength is 1064mm, repetition frequency is 100kHz, average power of infrared laser source is 40-50W, each group of repeated pulses is 6-8, spot diameter is 3um) to irradiate the cutting profile of the glass sheet The lobe line on the outside, and make the lobe line crack;
[0053] The split line is 0.7-1.0mm from the outer edge of the glass to the nearest cutting contour line; the extension line of the split line forms an included angle of 30-40° with th...
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