Five-axis rough machining for impellers

doi:10.1007/s11465-009-0010-4

Front Mech Eng Chin

2009, Vol. 4

Issue (1) : 71-76 https://doi.org/10.1007/s11465-009-0010-4

RESEARCH ARTICLE

Five-axis rough machining for impellers

Ruolong QI(

), Weijun LIU, Hongyou BIAN, Lun LI

Laboratory of Advanced Manufacture Technology, Shenyang Institution of Automation, Chinese Academy of Sciences, Shenyang 10016, China

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Abstract

The most important components used in aerospace, ships, and automobiles are designed with free form surfaces. An impeller is one of the most important components that is difficult to machine because of its twisted blades. Rough machining is recognized as the most crucial procedure influencing machining efficiency and is critical for the finishing process. An integrated rough machining course with detailed algorithms is presented in this paper. An algorithm for determining the minimum distance between two surfaces is applied to estimate the tool size. The space between two blades that will be cleared from the roughcast is divided to generate CC points. The tool axis vector is confirmed based on flank milling using a simple method that could eliminate global interference between the tool and the blades. The result proves that the machining methodology presented in this paper is useful and successful.

Keywords five-axis impeller tool-path planning flank milling ruled surface

Corresponding Author(s): QI Ruolong,Email:qiruolong@sia.cn

Issue Date: 05 March 2009

Cite this article:

Ruolong QI,Weijun LIU,Hongyou BIAN, et al. Five-axis rough machining for impellers[J]. Front Mech Eng Chin, 2009, 4(1): 71-76.

URL:

https://academic.hep.com.cn/fme/EN/10.1007/s11465-009-0010-4
https://academic.hep.com.cn/fme/EN/Y2009/V4/I1/71

Fig.1 Impeller modeling (splitter type)

Fig.2 Flank milling on ruled surface

Fig.3 Equidistant surfaces from the hub surface. (a) Non-splitter type; (b) splitter type

Fig.4 Equal parameter curves on layer. (a) Non-splitter type; (b) splitter type

Fig.5 Section of widest edge

Fig.6 Tool path generation verification. (a) Tool path planning of non-splitter type; (b) tool path planning of splitter type

Tab.1 Machining parameter of simulation

Fig.7 Impeller model in experiment

Fig.8 Actual rough machining. (a) In machining; (b) after machining

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