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Construction of a Hybrid Geometric Model for an Injection Mould Using CAD/CAM System

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Advances in Manufacturing Engineering

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

The design of a mould, which is manually performed, is time-consuming and quite complicated. This research presents a study on the procedures for automatic feature recognition to help in mould design. A hybrid representation approach is used in automatic feature recognition to extract geometric information from a feature to identify undercut features. Boundary representation is applied in the shape representation using topology and geometry. The proposed approach uses a face adjacency hypergraph to describe the shape of the undercut features by representing the relationships amongst the feature faces. Face-to-face composition is applied to represent the relationship between the main and the undercut features. Parts A, B, and C are created, and automatic feature recognition is used to classify the depression and protrusion features. Algorithms based on a heuristic rule are adopted to determine the optimal parting line and direction of the parts by comparing their feature’s geometric information. The automatic feature recognition approach identifies the shape of concave and convex features in accordance with the depression or protrusion of faces and the face adjacency relationship. This approach can be helpful in automatically creating the core and cavity. The proposed approach will help simplify the process and reduce the time for mould design. Therefore, this approach will significantly affect the increase in productivity in the manufacturing industry.

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Acknowledgements

This research is supported by the Ministry of Higher Education Malaysia and Universiti Sains Malaysia under the Fundamental Research Grant Scheme (FRGS) (Reference No. 6071369).

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Authors and Affiliations

  1. School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300, Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia

    Jian Xin Tan & Mohd Salman Abu Mansor

Authors
  1. Jian Xin Tan
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  2. Mohd Salman Abu Mansor
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Corresponding author

Correspondence to Mohd Salman Abu Mansor .

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Editors and Affiliations

  1. Department of Mechanical Engineering, University of Malaya, Kuala Lumpur, Selangor, Malaysia

    Seyed Sattar Emamian

  2. Department of Mechanical Engineering, Universiti Teknologi Petronas, Seri Iskander, Perak, Malaysia

    Mokhtar Awang

  3. Department of Mechanical Engineering, University of Malaya, Kuala Lumpur, Selangor, Malaysia

    Farazila Yusof

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Tan, J.X., Abu Mansor, M.S. (2020). Construction of a Hybrid Geometric Model for an Injection Mould Using CAD/CAM System. In: Emamian, S.S., Awang, M., Yusof, F. (eds) Advances in Manufacturing Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-5753-8_30

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  • DOI: https://doi.org/10.1007/978-981-15-5753-8_30

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-5752-1

  • Online ISBN: 978-981-15-5753-8

  • eBook Packages: EngineeringEngineering (R0)

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