Fibre laser joining of dissimilar materials: Commercially pure Ti and PET hybrid joint for medical device applications

Hdl Handle:
http://hdl.handle.net/10034/608633
Title:
Fibre laser joining of dissimilar materials: Commercially pure Ti and PET hybrid joint for medical device applications
Authors:
Chan, Chi-Wai; Smith, Graham C.
Abstract:
Laser transmission joining (LTJ) is growing in importance, and has the potential to become a niche technique for the fabrication of hybrid plastic-metal joints for medical device applications. The possibility of directly joining plastics to metals by LTJ has been demonstrated by a number of recent studies. However, a reliable and quantitative method for defining the contact area between the plastic and metal, facilitating calculation of the mechanical shear stress of the hybrid joints, is still lacking. A new method, based on image analysis using ImageJ, is proposed here to quantify the contact area at the joint interface. The effect of discolouration on the mechanical performance of the hybrid joints is also reported for the first time. Biocompatible polyethylene terephthalate (PET) and commercially pure titanium (Ti) were selected as materials for laser joining using a 200 W CW fibre laser system. The effect of laser power, scanning speed and stand-off distance between the nozzle tip and top surface of the plastic were studied and analysed by Taguchi L9 orthogonal array and ANOVA respectively. The surface morphology, structure and elemental composition on the PET and Ti surfaces after shearing/peeling apart were characterized by SEM, EDX, XRD and XPS.
Affiliation:
Queen's University Belfast; University of Chester
Citation:
Chan, C-W., & Smith, G. C. (2016). Fibre laser joining of dissimilar materials: Commercially pure Ti and PET hybrid joint for medical device applications. Materials and Design, 103, 278-292. DOI: 10.1016/j.matdes.2016.04.086.
Publisher:
Elsevier
Journal:
Materials and Design
Publication Date:
Apr-2016
URI:
http://hdl.handle.net/10034/608633
DOI:
10.1016/j.matdes.2016.04.086
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0264127516305706
Type:
Article
Language:
en
EISSN:
0264-1275
Appears in Collections:
Natural Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorChan, Chi-Waien
dc.contributor.authorSmith, Graham C.en
dc.date.accessioned2016-05-09T08:51:10Zen
dc.date.available2016-05-09T08:51:10Zen
dc.date.issued2016-04en
dc.identifier.citationChan, C-W., & Smith, G. C. (2016). Fibre laser joining of dissimilar materials: Commercially pure Ti and PET hybrid joint for medical device applications. Materials and Design, 103, 278-292. DOI: 10.1016/j.matdes.2016.04.086.en
dc.identifier.doi10.1016/j.matdes.2016.04.086en
dc.identifier.urihttp://hdl.handle.net/10034/608633en
dc.description.abstractLaser transmission joining (LTJ) is growing in importance, and has the potential to become a niche technique for the fabrication of hybrid plastic-metal joints for medical device applications. The possibility of directly joining plastics to metals by LTJ has been demonstrated by a number of recent studies. However, a reliable and quantitative method for defining the contact area between the plastic and metal, facilitating calculation of the mechanical shear stress of the hybrid joints, is still lacking. A new method, based on image analysis using ImageJ, is proposed here to quantify the contact area at the joint interface. The effect of discolouration on the mechanical performance of the hybrid joints is also reported for the first time. Biocompatible polyethylene terephthalate (PET) and commercially pure titanium (Ti) were selected as materials for laser joining using a 200 W CW fibre laser system. The effect of laser power, scanning speed and stand-off distance between the nozzle tip and top surface of the plastic were studied and analysed by Taguchi L9 orthogonal array and ANOVA respectively. The surface morphology, structure and elemental composition on the PET and Ti surfaces after shearing/peeling apart were characterized by SEM, EDX, XRD and XPS.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0264127516305706en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectMaterials joiningen
dc.subjectPlastics to metal joiningen
dc.subjectImage Analysisen
dc.subjectSEM-EDXen
dc.subjectXPSen
dc.subjectXRDen
dc.titleFibre laser joining of dissimilar materials: Commercially pure Ti and PET hybrid joint for medical device applicationsen
dc.typeArticleen
dc.identifier.eissn0264-1275en
dc.contributor.departmentQueen's University Belfast; University of Chesteren
dc.identifier.journalMaterials and Designen
dc.date.accepted2016-04-27en
or.grant.openaccessYesen
rioxxterms.funderUnfundeden
rioxxterms.identifier.projectUnfundeden
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2018-05-05en
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