Paper Title:
Research on the Adaptive Machining Technology of Blisk
  Abstract

Due to different datum position and inevitable distortion from the linear friction welding process, the nominal CAD model from the design stage is no longer suitable for the use of the final NC machining, and that is the main problem for precisely machining complex blisk. In this paper, an adaptive machining approach based on adaptive process model for high precision manufacturing of blisk is proposed and developed. Comparing the nominal model with the inspection result, adaptive process model is reconstructed to describe workpiece localization, allowance distribution and composite error compensation for NC machining of blisk accurately. Firstly, the transformation matrix for allowance optimization is searched fleetly by genetic algorithm with constraint conditions. Secondly, using the cross-section curve blending and deformation compensation method, adaptive model for shape distortion is constructed to solve the part-to-part variation machining problem and to realize precision machining for complex geometry blisk. Finally, based on the adaptive process model, tool paths used for the last NC machining process can then be adaptively generated to implement the different processes work. Example shows that the adaptive machining technology of blisk is feasible and the result is of high precision and efficiency.

  Info
Periodical
Advanced Materials Research (Volumes 69-70)
Edited by
Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen
Pages
446-450
DOI
10.4028/www.scientific.net/AMR.69-70.446
Citation
D. H. Zhang, Y. Zhang, B. H. Wu, "Research on the Adaptive Machining Technology of Blisk", Advanced Materials Research, Vols. 69-70, pp. 446-450, 2009
Online since
May 2009
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Price
$32.00
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