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Article: A dynamic priority-based approach to concurrent toolpath planning for multi-material layered manufacturing

TitleA dynamic priority-based approach to concurrent toolpath planning for multi-material layered manufacturing
Authors
KeywordsDynamic priority
Layered manufacturing
Multi-materials
Multi-object motion planning
Toolpath planning
Issue Date2010
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/cad
Citation
Cad Computer Aided Design, 2010, v. 42 n. 12, p. 1095-1107 How to Cite?
AbstractThis paper presents an approach to concurrent toolpath planning for multi-material layered manufacturing (MMLM) to improve the fabrication efficiency of relatively complex prototypes. The approach is based on decoupled motion planning for multiple moving objects, in which the toolpaths of a set of tools are independently planned and then coordinated to deposit materials concurrently. Relative tool positions are monitored and potential tool collisions detected at a predefined rate. When a potential collision between a pair of tools is detected, a dynamic priority scheme is applied to assign motion priorities of tools. The traverse speeds of tools along the x-axis are compared, and a higher priority is assigned to the tool at a higher traverse speed. A tool with a higher priority continues to deposit material along its original path, while the one with a lower priority gives way by pausing at a suitable point until the potential collision is eliminated. Moreover, the deposition speeds of tools can be adjusted to suit different material properties and fabrication requirements. The proposed approach has been incorporated in a multi-material virtual prototyping (MMVP) system. Digital fabrication of prototypes shows that it can substantially shorten the fabrication time of relatively complex multi-material objects. The approach can be adapted for process control of MMLM when appropriate hardware becomes available. It is expected to benefit various applications, such as advanced product manufacturing and biomedical fabrication. © 2010 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/134406
ISSN
2015 Impact Factor: 2.149
2015 SCImago Journal Rankings: 1.078
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChoi, SHen_HK
dc.contributor.authorZhu, WKen_HK
dc.date.accessioned2011-06-17T09:19:47Z-
dc.date.available2011-06-17T09:19:47Z-
dc.date.issued2010en_HK
dc.identifier.citationCad Computer Aided Design, 2010, v. 42 n. 12, p. 1095-1107en_HK
dc.identifier.issn0010-4485en_HK
dc.identifier.urihttp://hdl.handle.net/10722/134406-
dc.description.abstractThis paper presents an approach to concurrent toolpath planning for multi-material layered manufacturing (MMLM) to improve the fabrication efficiency of relatively complex prototypes. The approach is based on decoupled motion planning for multiple moving objects, in which the toolpaths of a set of tools are independently planned and then coordinated to deposit materials concurrently. Relative tool positions are monitored and potential tool collisions detected at a predefined rate. When a potential collision between a pair of tools is detected, a dynamic priority scheme is applied to assign motion priorities of tools. The traverse speeds of tools along the x-axis are compared, and a higher priority is assigned to the tool at a higher traverse speed. A tool with a higher priority continues to deposit material along its original path, while the one with a lower priority gives way by pausing at a suitable point until the potential collision is eliminated. Moreover, the deposition speeds of tools can be adjusted to suit different material properties and fabrication requirements. The proposed approach has been incorporated in a multi-material virtual prototyping (MMVP) system. Digital fabrication of prototypes shows that it can substantially shorten the fabrication time of relatively complex multi-material objects. The approach can be adapted for process control of MMLM when appropriate hardware becomes available. It is expected to benefit various applications, such as advanced product manufacturing and biomedical fabrication. © 2010 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/caden_HK
dc.relation.ispartofCAD Computer Aided Designen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Computer-Aided Design. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computer-Aided Design, 2010, v. 42 n. 12, p. 1095-1107. DOI: 10.1016/j.cad.2010.07.004-
dc.subjectDynamic priorityen_HK
dc.subjectLayered manufacturingen_HK
dc.subjectMulti-materialsen_HK
dc.subjectMulti-object motion planningen_HK
dc.subjectToolpath planningen_HK
dc.titleA dynamic priority-based approach to concurrent toolpath planning for multi-material layered manufacturingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0010-4485&volume=42&issue=12&spage=1095&epage=1107&date=2010&atitle=A+dynamic+priority-based+approach+to+concurrent+toolpath+planning+for+multi-material+layered+manufacturingen_US
dc.identifier.emailChoi, SH:shchoi@hkucc.hku.hken_HK
dc.identifier.authorityChoi, SH=rp00109en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.cad.2010.07.004en_HK
dc.identifier.scopuseid_2-s2.0-77957920849en_HK
dc.identifier.hkuros185669en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77957920849&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume42en_HK
dc.identifier.issue12en_HK
dc.identifier.spage1095en_HK
dc.identifier.epage1107en_HK
dc.identifier.isiWOS:000283962900004-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridChoi, SH=7408119615en_HK
dc.identifier.scopusauthoridZhu, WK=7404232249en_HK

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