10 Tube Hydro-Forming Process Design Based …
129
Fig. 10.14 Best matching cases in testing
10.5 Conclusions
As tubular parts for hydro-forming are composed of groups of bending, crushing
and expansions, the process planning is very complicated. A new method to deal
with the geometric and material data to extract information for KBE use as a featurebased representation and Based on this representation, a self-organized map CBR
approach for process design are presented in this paper. The feature-based representation divides a tubular part into several segments with cross sections and local features
so that the retrieval mechanism can index similar cases quickly and accurately. The
SOM algorithm constructs similar cases more similar cases associating with nodes
that are closer in a two-dimension grid, so it is very efficient in high-dimension data
cluster. Using the hybrid methodology, process plans and dies can be designed by
revising a previous case. It can assist engineers in preserving tacit knowledge of tube
hydro-forming and accelerates the parts design and manufacturing.
129
Fig. 10.14 Best matching cases in testing
10.5 Conclusions
As tubular parts for hydro-forming are composed of groups of bending, crushing
and expansions, the process planning is very complicated. A new method to deal
with the geometric and material data to extract information for KBE use as a featurebased representation and Based on this representation, a self-organized map CBR
approach for process design are presented in this paper. The feature-based representation divides a tubular part into several segments with cross sections and local features
so that the retrieval mechanism can index similar cases quickly and accurately. The
SOM algorithm constructs similar cases more similar cases associating with nodes
that are closer in a two-dimension grid, so it is very efficient in high-dimension data
cluster. Using the hybrid methodology, process plans and dies can be designed by
revising a previous case. It can assist engineers in preserving tacit knowledge of tube
hydro-forming and accelerates the parts design and manufacturing.