首页|Process in laser drilling of deep microholes without taper on metal materials

Process in laser drilling of deep microholes without taper on metal materials

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Deep microhole machining is currently a prominent research area within the aerospace field,encompassing blade film cooling and fuel injection control technologies.However,taper defects in metal materials may lead to performance degradation or even structural damage over a component's lifetime.Trepanning and helical drilling,facilitated by ultrashort pulse lasers,have proven more suitable for achieving high-precision,deep holes in metal materials.Nonetheless,excessive repetition rates can also result in severe thermal damage.Various methods are commonly employed for controlling taper,including parameter optimization,assistance,and secondary modification.Tilted laser beam drilling is widely utilized and has been integrated into relevant machining systems for commercial applications.Typical deep microholes include film cooling holes and injection microholes.Laser drilling is a potential machining method for new materials in the aerospace field.Although laser drilling processing has been studied,numerous related scientific challenges and technical difficulties must be addressed before practical im-plementation.

aerospacelaser drillingdeep microholetaper control

FAN RunZe、MEI XueSong、CUI JianLei

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State Key Laboratory for Manufacturing Systems Engineering,Xi'an Jiaotong University,Xi'an 710054,China

Science Center for Gas Turbine ProjectNational Natural Science Foundation of ChinaShaanxi Provincial Key Research and Development Programfind of the State Key Laboratory of Solidification Processing in NPU

P2022-A-Ⅳ-002-003520220782021ZDLGY10-02SKLSP202203

2024

10.1007/s11431-023-2557-x

中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子：1.056
ISSN：1674-7321
年,卷(期)：2024.67(1)
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