科研之友
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摘要
A novel, on-machine method applying the adaptive triangular mesh sampling measuring process on automotive parts mold was elaborated in order to obtain the processing errors of free-form surfaces. This process has firstly generated a triangular mesh through the advancing front method. This has allowed us to extract the coordinate data corresponding to the mesh nodes. Subsequently, the processed surfaces were fitted by the mean of NURBS surface reconstruction. The final stage has employed the determination of the normal distance between the reconstructed and theoretical surfaces using the generalized Newtonian method, which has eventually allowed us to obtain the free-form surface machining errors as well as the model surface profile errors corresponding to the experimental process. Therefore, we have effectively determined the free-form surface processing errors by using the processing surface reconstruction methodology based on the adaptive triangular mesh sampling.
- 出版日期2017-5
- 单位哈尔滨学院
