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| Laser Micro-Holes Machining Technology and Its Application |
| YANG Lijun, KONG Xianjun, WANG Yang, DING Ye, ZHANG Hongzhi, CHI Guanxin |
| (School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China) |
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Abstract With rapid development of high quality and sophisticated equipment, the demand of high quality, high
depth/radius radio micro-holes is more and more urgent. Femtosecond laser and water-jet guided laser drilling technologies
are introduced. Firstly, the principles of two kinds of micro-holes machining technologies are discussed and two kinds
of micro-holes drilling technology research status are reviewed; Then, the effects of processing mode, laser process parameters,
processing environment (vacuum, gas, liquid, chemical environment) and laser beam coupling with water on the
micro-hole drilling quality are discussed; Finally, aerospace application of two kinds of micro-hole machining technologies
and current problems which we face are summed up.
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2016, 
