When machining a large-scale aerospace part, the part is normally located and clamped firmly until a set of features are machined. When the part is released, its size and shape may deform beyond the tolerance limits due to stress release. This paper presents the design of a new fixing method and flexible fixtures that would automatically respond to workpiece deformation during machining. Deformation is inspected and monitored on-line, and part location and orientation can be adjusted timely to ensure follow-up operations are carried out under low stress and with respect to the related datum defined in the design models.
Bibliographical noteFunding Information:
The results presented in this paper were outcome of the research project funded by the National Natural Science Foundation of China (Ref. 51375239 ) and Jiangsu Province Outstanding Youth Fund (Ref. BK20140036 ) which support significant industrial and international collaboration. The authors also gratefully acknowledge the support of K.C. Wong Education Foundation, Hongkong.
© 2015 CIRP.
- Computer aided design (CAD)
- In-process measurement
- Precision machining
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering