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.
- computer aided design
- in-process measurement
- precision machining
Li, Y., Liu, C., Hao, X., Gao, J. X., & Maropoulos, P. G. (2015). Responsive fixture design using dynamic product inspection and monitoring technologies for the precision machining of large-scale aerospace parts. CIRP Annals, 64(1), 173-176. https://doi.org/10.1016/j.cirp.2015.04.025