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首页> 外文期刊>International Journal of Production Research >Cutter size optimisation and interference-free tool path generation for five-axis flank milling of centrifugal impellers
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Cutter size optimisation and interference-free tool path generation for five-axis flank milling of centrifugal impellers

机译：离心叶轮五轴侧面铣削的刀具尺寸优化和无干扰刀具路径生成

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摘要

Strategies for cutter size optimisation and interference-free tool path generation are proposed for five-axis flank milling of centrifugal impellers. To increase the material removal rate and provide a stronger tool shank during flank milling, the cutter size is first maximised under a set of geometric constraints. The tool path is then globally optimised in accordance with the minimum zone criterion for the determined optimal cutter size. Aside from the local interference of the cutter with the design surface, the global interferences with the hub surface and the adjacent blade surface are also considered in the optimisation models. Interference is indicated by the signed distance from the sampled point on the blade surface to the tool envelope surface. This distance is calculated without constructing the envelope surface. On the basis of the differential property of the distance function, we choose a sequential linear programming method in implementing the optimisations. This approach applies to generic rotary cutters, such as cylindrical and conical tools. Simulations are conducted to obtain the optimal cutter size and generate an interference-free tool path for a practical impeller. Simultaneously, a software module that can generate tool envelope surfaces and verify geometric errors is used to validate the proposed method.
机译：针对离心叶轮的五轴侧面铣削，提出了刀具尺寸优化和无干扰刀具路径生成的策略。为了提高材料去除率并在侧面铣削过程中提供更坚固的刀柄，首先要在一组几何约束下最大化刀具尺寸。然后根据确定的最佳刀具尺寸的最小区域标准对刀具路径进行全局优化。除了刀具对设计表面的局部干扰之外，优化模型中还考虑了对轮毂表面和相邻刀片表面的整体干扰。干扰通过从刀片表面上的采样点到工具外壳表面的有符号距离表示。在不构造包络面的情况下计算该距离。根据距离函数的微分性质，在实现优化过程中选择顺序线性规划方法。这种方法适用于通用的旋转刀具，例如圆柱形和圆锥形刀具。进行仿真以获得最佳切刀尺寸，并为实际叶轮生成无干扰的刀具路径。同时，可以生成工具包络面并验证几何误差的软件模块用于验证所提出的方法。

著录项

  • 来源
    《International Journal of Production Research》 |2012年第24期|6667-6678|共12页
  • 作者

    Gang Zheng; Limin Zhu; Qingzhen Bi;

  • 作者单位

    State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China;

    State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China;

    State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    flank milling; cutter size optimisation; interference-free tool path generation; centrifugal impeller;

    机译：侧面铣削刀具尺寸优化;无干扰的刀具路径生成;离心叶轮;

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