Experimental investigations on longitudinal-torsional vibration-assisted milling of Ti-6Al-4V
Experimental investigations on longitudinal-torsional vibration-assisted milling of Ti-6Al-4V
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DOI：
10.1007/s00170-020-05392-w
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发表时间：
2020-06
期刊：
影响因子：
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通讯作者：
Philipp M. Rinck;Alpcan Gueray;Robin Kleinwort;M. Zaeh
中科院分区：
文献类型：
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作者：
Philipp M. Rinck;Alpcan Gueray;Robin Kleinwort;M. Zaeh
在振动辅助铣削（VAM）中，附加的高频振荡叠加在常规加工过程的运动学上。这会产生切削刃在几微米范围内的振荡，从而导致切削速度和/或进给的高频变化。因此，可以减少切削力，增加刀具寿命，并改善工件质量。分析和比较了Ti-6Al-4V铣削时纵向振动和纵向扭转振动对切削力、刀具寿命和表面质量的影响。与传统铣削工艺相比，在铣削过程中引入超声振动可显著降低切削力，提高工件表面光洁度。纵向-扭转振动辅助整体工艺性能优于单纯的纵向振动辅助。
In vibration-assisted milling (VAM), an additional high-frequency oscillation is superimposed on the kinematics of a conventional machining process. This generates oscillations of the cutting edge in the range of a few micrometers, thereby causing a high-frequency change in the cutting speed and/or the feed. Consequently, a reduction of cutting forces, an increase of the tool life, and an improvement of the workpiece quality can be achieved. This paper shows and compares the effects of longitudinal and longitudinal-torsional (L-T) vibrations on the cutting force, the tool life, and the surface quality when milling Ti-6Al-4V. In comparison with the conventional milling process, the cutting forces are significantly reduced and the surface finish of the workpiece can be improved by introducing ultrasonic vibrations to the milling process. Longitudinal-torsional vibration assistance showed better overall process performance than the pure longitudinal vibration assistance.