Construction Of Hybrid Geometric Modelling For Injection Mould Using Cadcam System
This project describes a procedure for automatic feature recognition to help in mould designing. Hybrid representation approach is used in automatic feature recognition to extract the geometric information of the feature in order to identify the undercut features. Boundary representation(B-rep...
| Main Author: | |
|---|---|
| Format: | Monograph |
| Language: | English |
| Published: |
Universiti Sains Malaysia
2019
|
| Subjects: | |
| Online Access: | http://eprints.usm.my/58286/ http://eprints.usm.my/58286/1/Construction%20Of%20Hybrid%20Geometric%20Modelling%20For%20Injection%20Mould%20Using%20Cadcam%20System.pdf |
| Summary: | This project describes a procedure for automatic feature recognition to help in
mould designing. Hybrid representation approach is used in automatic feature
recognition to extract the geometric information of the feature in order to identify the
undercut features. Boundary representation(B-rep) is applied in the shape
representation by using the topology and geometry. The proposed approach that used
the Face Adjacency Hypergraph describes the shape of the undercut features by
representing the relationships among the faces of the features. The Face-to-Face
Composition is applied to study the relationship between the main feature and undercut
features. Part A, Part B and Part C were created and used the automatic feature
recognition to classify the depression and protrusion feature. The algorithms based on
the heuristic rule is used to determine the best parting line and parting direction of the
parts by comparing their geometric information of the feature. These automatic feature
recognition identified their shape of concave and convex feature according their
depression or protrusion faces and their face adjacency relationship. These approaches
are helpful in creating the core and cavity automatically. It will help to simplify the
process of mould designing and reduce the time of moulding designing. Therefore,
these approaches will have significant effect on increasing the productivity in
manufacturing industry. |
|---|