New Planning Algorithm of Tool Path for Long Turbine Blades Machining with Twin-Cutters

doi:10.7652/xjtuxb201309011

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New Planning Algorithm of Tool Path for Long Turbine Blades Machining with Twin-Cutters

更新时间：2025-07-09

- New Planning Algorithm of Tool Path for Long Turbine Blades Machining with Twin-Cutters
- Vol. 47, Issue 9, Pages: 65-71(2013)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201309011
  CLC： O121.8;G558
- Online First：10 September 2013，
  
  Published：2013
- 稿件说明：
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New Planning Algorithm of Tool Path for Long Turbine Blades Machining with Twin-Cutters[J]. 2013, 47(9): 65-71.
DOI：

New Planning Algorithm of Tool Path for Long Turbine Blades Machining with Twin-Cutters[J]. 2013, 47(9): 65-71. DOI： 10.7652/xjtuxb201309011.

摘要

为改善汽轮机长叶片型面加工中的变形问题

提出了2种优化目标下的叶片型面双铣刀对刀加工刀位轨迹规划算法。首先建立了牛鼻刀的切削力与切削参数、刀具姿态的关系模型

在此基础上分别以最小径向切削合力和最小切削合力矩为优化目标计算了2把铣刀的切削刀位点和刀具姿态。采用有限元分析方法对比了传统单铣刀切削加工路径、未优化双刀切削加工路径和2种双铣刀切削加工路径下的叶片加工变形情况

结果显示:在一组给定的常用切削参数下

径向切削合力优化轨迹算法和切削合力矩优化轨迹算法可分别将叶片的平均加工变形减小约31%和55%; 沿优化后的双刀切削加工路径加工能够有效改善叶片整体受力情况

减小叶片的加工变形

提高加工精度和效率。

Abstract

In order to solve the deformation problem during the manufacturing process of the long turbine blades

a tool path planning algorithm of the twin-cutters was proposed based on two optimization strategies

i.e.

minimization of the radial cutting resultant force and minimization of the cutting resultant moment. An analytic cutting force model of the bullnose cutter was presented to predict the cutting force value of a single cutter. The cutting locations and cutters' orientation were then calculated in order to satisfy the two optimization strategies. The results show that with certain milling parameters

the tool path planning with the two optimization strategies can help to reduce the blade's process deformation by 31% and 55%

respectively. The optimized tool path can effectively compensate the cutting force and eventually reduce the blades' manufacturing deformation.

关键词

Keywords

references

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