Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/73562
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dc.titleInvestigation on the shrinkage behaviour of direct laser sintering Cu-based metallic powder
dc.contributor.authorZhu, H.
dc.contributor.authorFuh, J.Y.H.
dc.contributor.authorLu, L.
dc.date.accessioned2014-06-19T05:36:36Z
dc.date.available2014-06-19T05:36:36Z
dc.date.issued2004
dc.identifier.citationZhu, H.,Fuh, J.Y.H.,Lu, L. (2004). Investigation on the shrinkage behaviour of direct laser sintering Cu-based metallic powder. ICMA 2004 - Proceedings of the International Conference on Manufacturing Automation: Advanced Design and Manufacturing in Global Competition : 811-817. ScholarBank@NUS Repository.
dc.identifier.isbn1860584683
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/73562
dc.description.abstractInaccuracy in direct laser sintering of metallic powder is caused by many factors. It is a severe issue that restricts the application of this process. Theoretical analysis and experimental study on shrinkage behaviour of direct laser sintering Cu-based metallic powder is reported in this paper. It was found that shrinkage is anisotropic; the shrinkage in the z (height) direction as well as the dimensional changes in-plane (x, y directions) are a combination of three sources: thermal shrinkage, sintering shrinkage, and expansion caused by the metal particles falling down during the sintering. A hypothesis 2-D model is proposed to explain the expansion phenomenon . The experimental results strongly support the hypothesis. Since the shrinkage in z direction can be compensated by the later deposited powder, the dimension can be controlled to high precision if the shrinkage in plane can be controlled well.
dc.sourceScopus
dc.subjectDirect laser sintering
dc.subjectMetallic powder
dc.subjectShrinkage behaviour
dc.typeConference Paper
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.sourcetitleICMA 2004 - Proceedings of the International Conference on Manufacturing Automation: Advanced Design and Manufacturing in Global Competition
dc.description.page811-817
dc.identifier.isiutNOT_IN_WOS
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