高温合金轴向超声振动钻削减摩机理
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摘要
针对高温合金钻削困难、钻削过程中摩擦力大等问题,采用超声振动技术加工.首先,分析了超声振动减摩机理,构建了平均摩擦力与振动参数之间的关系,并得出了平均摩擦力与振幅之间的变化趋势.建立轴向超声振动钻削系统,利用该系统对高温合金进行钻削加工.结果表明:振动振幅对孔壁表面质量的影响符合超声振动钻削的减摩特性.利用优化后的振幅超声振动钻削,与普通钻削相比,切屑形态更加规整,孔壁表面粗糙度值更小,表面质量更好.
In viewof difficulties in drilling high-temperature alloys and large friction during drilling,ultrasonic machining was used. Firstly,the reducing friction mechanism of ultrasonic vibration was analyzed, the relationship between the average friction force and vibration parameters was constructed,and then the correlation between the average friction force and amplitude was obtained. An axial ultrasonic vibration drilling system was established,which was used to drill the superalloy. The results showed that the effect of amplitude on the surface quality of hole wall is consistent with anti-friction characteristics of ultrasonic vibration. Compared with that of the ordinary drilling,the production of optimized amplitude ultrasonic vibration drilling yields more regular chip morphology,smooth hole wall surface roughness,and better surface quality.
In viewof difficulties in drilling high-temperature alloys and large friction during drilling,ultrasonic machining was used. Firstly,the reducing friction mechanism of ultrasonic vibration was analyzed, the relationship between the average friction force and vibration parameters was constructed,and then the correlation between the average friction force and amplitude was obtained. An axial ultrasonic vibration drilling system was established,which was used to drill the superalloy. The results showed that the effect of amplitude on the surface quality of hole wall is consistent with anti-friction characteristics of ultrasonic vibration. Compared with that of the ordinary drilling,the production of optimized amplitude ultrasonic vibration drilling yields more regular chip morphology,smooth hole wall surface roughness,and better surface quality.
引文
[1]徐英帅,邹平,王伟,等.超声振动辅助车削高温合金和铝镁合金研究[J].东北大学学报(自然科学版),2017,38(1):95-100.(Xu Ying-shuai,Zou Ping,Wang Wei,et al. Investigation on ultrasonic vibration assisted turning of Ni-based superalloy and Al-Mg alloy[J]. Journal of Northeastern University(Natural Science),2017,38(1):95-100.)
[2]陈硕,邹平,吴高勇,等. 45钢超声振动钻削加工机理及其试验研究[J].电加工与模具,2017,330(1):48-51.(Chen Shuo,Zou Ping,Wu Gao-yong,et al. Drilling mechanism and experimental study on ultrasonic vibration machining of 45 steel[J]. Electromachining&Mould,2017,330(1):48-51.)
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[7]肖子英.超声振动钻削系统设计及其试验研究[D].福州:福建农林大学,2010.(Xiao Zi-ying. Ultrasonic vibration drilling system design and experimental research[D]. Fuzhou:Fujian Agriculture and Forestry University,2010.)
[8] Babitsky V I,Kalashnikov A N,Meadows A,et al.Ultrasonically assisted turning of aviation materials[J].Journal of Materials Processing Technology,2003,132(1):157-167.
[9] Koshimizu S. Ultrasonic vibration-assisted cutting of titanium alloy[J]. Key Engineering Materials,2009,389(1):277-282.
[10] Adachi K,Kato K,Sasatani Y. The micro-mechanism of friction drive with ultrasonic wave[J]. Wear,1996,194(2):137-142.
[11] Zhang B,Yang F L,Wang J X. Fundamental aspects in vibration-assisted tapping[J]. Journal of Materials Processing Technology,2003,132(3):345-352.
[2]陈硕,邹平,吴高勇,等. 45钢超声振动钻削加工机理及其试验研究[J].电加工与模具,2017,330(1):48-51.(Chen Shuo,Zou Ping,Wu Gao-yong,et al. Drilling mechanism and experimental study on ultrasonic vibration machining of 45 steel[J]. Electromachining&Mould,2017,330(1):48-51.)
[3] Jin T,Cai G. Analysis of ultrasonic-assisted drilling of Ti6Al4V[J]. Journal of Manufacturing Science and Engineering,2001,12(2):185-190.
[4] Pujana J,Rivero A,Celaya A,et al. Analysis of ultrasonicassisted drilling of Ti6Al4V[J]. Tools Manufacture,2009,49(3):500-508.
[5] Patil S,Joshi S,Tewari A,et al. Modeling and simulation of effect of ultrasonic vibrations on machining of Ti6Al4V[J].Ultrasonics,2014,54(2):694-705.
[6] Muhammad R,Hussain MS,Maurotto A,et al. Analysis of a free machiningα+βtitanium alloy using conventional and ultrasonically assisted turning[J]. Journal of Materials Processing Technology,2014,214(4):906-915.
[7]肖子英.超声振动钻削系统设计及其试验研究[D].福州:福建农林大学,2010.(Xiao Zi-ying. Ultrasonic vibration drilling system design and experimental research[D]. Fuzhou:Fujian Agriculture and Forestry University,2010.)
[8] Babitsky V I,Kalashnikov A N,Meadows A,et al.Ultrasonically assisted turning of aviation materials[J].Journal of Materials Processing Technology,2003,132(1):157-167.
[9] Koshimizu S. Ultrasonic vibration-assisted cutting of titanium alloy[J]. Key Engineering Materials,2009,389(1):277-282.
[10] Adachi K,Kato K,Sasatani Y. The micro-mechanism of friction drive with ultrasonic wave[J]. Wear,1996,194(2):137-142.
[11] Zhang B,Yang F L,Wang J X. Fundamental aspects in vibration-assisted tapping[J]. Journal of Materials Processing Technology,2003,132(3):345-352.