高温合金激光环切打孔技术

发布时间：2018-05-18 11:25

本文选题：激光技术 + 激光环切　；参考：《激光与光电子学进展》2017年01期

【摘要】：采用控制变量法对GH4037高温合金进行了激光环切打孔实验,得到了脉冲能量、离焦量、环切速度、环切圈数对小孔锥度和上下孔径的影响规律。结果表明,脉冲能量和离焦量对小孔孔径和锥度的影响较大,而环切速度和环切圈数主要影响小孔的形貌。离焦量的绝对值越大,热影响区、上孔径和锥度也越大;增加环切圈数及适当的环切速度(3~6mm/min)有助于提升小孔的质量,使孔口堆积物减少,且孔的圆度较好。
[Abstract]:The effect of pulse energy, defocus, circumferential tangent velocity and annulus number on the taper and the upper and lower aperture of GH4037 superalloy were obtained by using the control variable method. The results show that the pulse energy and defocus have great influence on the pore diameter and taper, while the ring cutting speed and the annular circle number mainly affect the morphology of the pore. The larger the absolute value of defocus, the larger the heat affected zone, the larger the aperture and the taper, and the higher the circumferential circle number and the proper annular cutting speed are, the higher the quality of the pore is, the less the accumulation of the hole is, and the better the roundness of the hole is.
【作者单位】：江苏大学机械工程学院;无锡职业技术学院;
【基金】：国家973计划(2011CB013004) 江苏省高校自然科学研究项目(11KJA460003,15KJD460002) 江苏省科技支撑计划(BE2015037) 江苏省高校“青蓝工程”资助江苏省“六大人才高峰”项目(2013-ZBZZ-025)
【分类号】：TN249

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