ASSIST GAS GENERATION APPARATUS FOR LASER PROCESSING MACHINE
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app pub date -
Oct 22, 2013
filing date -
Oct 26, 2012
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Abstract
There is provided an assist gas generation apparatus for a laser processing machine that is capable of dross-free cutting by using a nitrogen-rich gas and of reducing the cutting cost. An assist gas supply portion in a laser processing machine includes an air compressor for taking in air and compressing the air to a prescribed pressure, an oxygen separation device having an oxygen separation membrane for separating an oxygen gas from the air compressed by the air compressor and generating a nitrogen-rich gas, and a booster for compressing the nitrogen-rich gas generated by the oxygen separation device. A throttle portion is provided between the air compressor and the oxygen separation device or between the oxygen separation device and the booster.
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