The role of tool geometry in process damped milling
The role of tool geometry in process damped milling
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DOI：
10.1007/s00170-010-2586-6
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发表时间：
2010-03
期刊：
影响因子：
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通讯作者：
A. Yusoff;S. Turner;Chris M. Taylor;N. Sims
中科院分区：
文献类型：
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作者：
A. Yusoff;S. Turner;Chris M. Taylor;N. Sims
机械加工结构系统和切削过程之间的复杂相互作用导致了机械加工的不稳定性，即所谓的颤振。在某些铣削场景中，过程阻尼是一种有用的现象，可以用来减轻颤振，从而提高生产率。在本研究中，实验进行评估的过程阻尼铣削考虑不同的刀具几何形状（边缘半径，前角和后角和可变螺旋/间距）的性能。结果清楚地表明，可变螺旋/螺距角最显着地增加过程阻尼性能。此外，增加切削刃半径适度地改善了过程阻尼性能，而前角和后角具有较小且紧密耦合的效果。
The complex interaction between machining structural systems and the cutting process results in machining instability, so-called chatter. In some milling scenarios, process damping is a useful phenomenon that can be exploited to mitigate chatter and hence improve productivity. In the present study, experiments are performed to evaluate the performance of process damped milling considering different tool geometries (edge radius, rake and relief angles and variable helix/pitch). The results clearly indicate that variable helix/pitch angles most significantly increase process damping performance. Additionally, increased cutting edge radius moderately improves process damping performance, whilst rake and relief angles have a smaller and closely coupled effect.