Abstract
As a typical thin-walled workpiece, the machining performance of jet-engine rotor blade was affected very much by its positioning errors when held by fixtures. Aiming at the error control problem in keeping-aerofoil machining of jet-engine blade's near-net shaped formed, the dimensional errors accumulative process was modeled and its numerical calculation method was proposed based on 3D point cloud model of rotor workpiece. A Monte-Carlo random simulation method was presented to evaluate the positioning tolerance of rotor workpiece. A rotor blade in a jet-engine low pressure compressor was milled precisely, and the effectiveness of proposed method was validated by analyzing, evaluating and verifying the positioning error of workpieces.
| Original language | English |
|---|---|
| Pages (from-to) | 2118-2126 |
| Number of pages | 9 |
| Journal | Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS |
| Volume | 22 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 Sep 2016 |
| Externally published | Yes |
Keywords
- Jet-engine
- Near-net shaped formed rotor
- Numerical simulation
- Positioning error
- Precision machining
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