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Research on the cutting dynamics for face-milling of spiral bevel gears

机译：螺旋锥齿轮面铣削切割动力学研究

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摘要

For an efficient and precise machining of spiral gear, the special face-milling process for spiral bevel gear is developed and widely used, exhibiting great difference from the general milling process in cutting machine, cutter and cutting kinematics. The un-deformed chip geometry, cutting force model and regenerating mechanism are hence complexly different, bringing great challenge to the modeling of cutting dynamics. In this regard, no relevant work can be found at present. To overcome this problem, through fully investigating the cutting force regenerating mechanism under complicated cutting kinematics, this paper first develops an analytical cutting force prediction model by classifying the chip geometry into 6 cases, and then a simplified dynamic chip model by assuming the chip geometry cases unchanged and ignoring edge alteration. On such basis, the model for prediction of the cutting dynamics and the chatter stability are developed and validated. Besides, the 3D stability lobe for face-milling of spiral bevel gear is presented and the cutting system tends to be stable with high cutter gear ratio and cutting speed.
机译：为螺旋齿轮的有效且精确的机加工，螺旋伞齿轮的特殊面研磨过程开发并广泛使用，显示出在从切割机，切割机和切割运动学的一般研磨过程很大的差别。未变形的芯片几何形状，切削力模型和再生机制是复杂，因此不同，切割动力学建模带来了很大的挑战。在这一点上，没有相关的工作，目前可以找到。为了克服这个问题，通过充分调查切割力的作用下变得复杂切削运动学再生机构，本文首先由芯片几何形状分类成6箱子通过假定芯片几何形状的情况下开发的分析切削力预测模型，然后简化动态芯片模型不变，并忽略边缘改变。在此基础上，用于切削动力学和颤振​​稳定性的预测模型的开发和验证。此外，三维稳定性叶为螺旋伞齿轮的端面铣削被呈现和所述切割系统趋向于具有高切割器的齿轮比和切割速度稳定。

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