Lateral Vibrations in Deep Hole Drilling Due to Land Width Variation
Lateral Vibrations in Deep Hole Drilling Due to Land Width Variation
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DOI：
10.3390/jmmp4020028
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发表时间：
2020-06-01
影响因子：
3.2
通讯作者：
Weigold, Matthias
中科院分区：
文献类型：
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作者：
Volz, Marcel;Abele, Eberhard;Weigold, Matthias
在钻削过程中，自激振动对可实现的钻削质量和刀具寿命具有负面影响。低频径向振动的特征在于刀具尖端的振荡运动和在钻孔中产生叶状孔。本文着重研究了扭转钻具刃带宽度对这些振动的参与和影响。因此，使用具有不同刃带宽度和12的长径比的钻孔工具，并且在钻出过程中改变不同的参数，例如进给速率、切削速度、冷却剂压力、预孔直径和卡盘选择。研究结果表明，槽脊宽度对横向振动的形成和裂孔的产生有显著的影响。
In drilling processes, self-excited vibrations have a negative influence on the achievable drilling qualities and tool life. Low-frequency radial vibrations are characterised by oscillating movements of the tool tip and the generation of lobed holes in drilling. This study focuses on the participation and influence of the land widths of twisted drilling tools on these vibrations. Therefore, drilling tools with different land widths and a length-to-diameter ratio of 12 are used, and different parameters, such as feed rate, cutting speed, coolant pressure, pre-hole diameter, and chuck selection, are varied in a drill-out process. The results show that the land widths have a statistically significant influence on the formation of lateral vibrations and the generation of lobed holes.