Method of using device of processing tempered glass
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United States of America Patent
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Jul 19, 2016
Grant Date -
Aug 20, 2015
app pub date -
Jul 31, 2013
filing date -
Aug 31, 2012
priority date (Note) -
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Abstract
The processing device has a shaft shape, at least an outer surface of a front end which is a surface of holding diamond grind grains, and a concave portion formed on a central part in a radial direction of a front surface. The chemical tempered glass having a surface reinforced layer is processed by using the processing device which is rotated around its shaft center and vibrated in a direction of extending the shaft center. The vibration of the processing device is feed-back controlled to the chemical tempered glass to approach an amplitude and a frequency of the processing device to a target amplitude and a target frequency, respectively, and setting the target amplitude at a value in a range from 3 μm to 9 μm and the target frequency at a value in a range from 60 kHz to 64 kHz.
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