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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Toolpath Regeneration in Subregional Contour-Parallel Processing Based on Isoscallop Method
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Toolpath Regeneration in Subregional Contour-Parallel Processing Based on Isoscallop Method

机译：基于ISOScallop方法的子区域轮廓 - 并行处理的刀具路径再生

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摘要

Advanced manufacturing technologies have made great progress in the fields of aerospace, resources, and power, and the complex curved surface parts with local rapidly varied geometric feature are increasingly and widely used. On account of the complex geometric feature for this kind of parts, global processing technology cannot meet the requirements of high quality and high-efficiency processing, and the subregional processing method is used. However, the existing methods usually lead to bad machining quality at the boundary and are also prone to form obvious machined trace at the center of machining region in subregional processing. Hence, in this article, a subregional toolpath regeneration method for contour-parallel processing based on the isoscallop method is proposed. First, the initial toolpath generation is finished, which can ensure machining quality at the boundary. Then, establishing the arc length error calculation model for the innermost loop of toolpaths, the arc length error is averaged in the side-step direction and the feeding direction by modifying the cutter contact points. Finally, the toolpath regeneration is realized, which can reduce machined trace at the center of machining region. Experimental results show that with the proposed method, the profile arithmetic average error and the maximum of profile deviation decrease by 32.03% and 53.38%, respectively, at the innermost loop of toolpaths compared with the results of the conventional isoscallop method. For that, the proposed method can improve the machining quality effectively for complex curved surface in subregional contour-parallel processing.
机译：先进的制造技术在航空航天，资源和功率领域取得了很大进展，并且越来越广泛地和广泛地利用了具有局部快速变化的几何特征的复杂曲面部件。由于这种零件的复杂几何特征，全球加工技术不能满足高质量和高效处理的要求，并使用次区域处理方法。然而，现有方法通常导致边界处的加工质量差，并且在次区域处理中的加工区域中心也容易形成明显的机加工轨迹。因此，在本文中，提出了一种基于isoscallop方法的轮廓平行处理的子区域刀具路径再生方法。首先，完成初始刀具路径生成，可以确保边界处的加工质量。然后，建立刀具路径最内部环路的电弧长度误差计算模型，通过修改切割器接触点来在侧向方向和馈送方向上平均电弧长度误差。最后，实现了刀具路径再生，这可以减少加工区域中心的加工迹线。实验结果表明，与常规isoscallop方法的结果相比，通过所提出的方法，轮廓算术平均误差和概况偏差的最大值分别降低了32.03％和53.38％。为此，所提出的方法可以有效地改善加工质量，在次区域轮廓平行处理中有效地有效地用于复杂的弯曲表面。

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