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Investigations on the limitations of rapid experimental determination of stability boundaries during milling

机译：碾磨过程中稳定边界快速实验确定局限性的研究

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摘要

Stability boundaries in milling operations can be determined either analytically or experimentally. Since analytical determination depends on several assumptions and approximations, experimental methods offer a realistic alternative. This however, requires numerous milling trials with different process parameters the results of which are then illustrated in a stability lobe diagram. Although the methods for rapid experimental determination of stability boundaries such as continuously increasing depth of cut and continuously increasing cutting speed have been suggested in literature, they have not been adequately evaluated for their accuracy and limitations. In the current paper, the method of continuously increasing depth of cut is analysed. For this, a Poincare-section based real time chatter detection algorithm was firstly calibrated. Subsequently, this algorithm was run along with milling trials with continuously increasing depth of cut by inclining the work piece. The influence of the inclination angle on the stability boundary could then be analysed.
机译：可以在分析或实验中确定铣削操作中的稳定性边界。由于分析确定取决于若干假设和近似，因此实验方法提供了一种现实的替代方案。然而，这需要许多具有不同工艺参数的铣削试验，然后在稳定性叶片图中示出了该结果。虽然在文献中提出了用于快速实验稳定性边界的方法，但在文献中提出了连续增加和不断增加的切削速度的延长率，但它们没有得到充分评估其准确性和限制。在目前的纸张中，分析了连续增加切割深度的方法。为此，首先校准了一个基于庞的剖面剖面颤动检测算法。随后，通过倾斜工件，使用铣削试验以及连续增加切割深度的铣削试验。然后分析倾斜角对稳定性边界的影响。

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