Correlating nano-scale surface replication accuracy and cavity temperature in micro-injection moulding using in-line process control and high-speed thermal imaging
dc.contributor.author | Baruffi, F. | |
dc.contributor.author | Gülçür, Mert, | |
dc.contributor.author | Calaon, M. | |
dc.contributor.author | Romano, J.-M. | |
dc.contributor.author | Penchev, P. | |
dc.contributor.author | Dimov, S. | |
dc.contributor.author | Whiteside, Benjamin R. | |
dc.contributor.author | Tosello, G. | |
dc.date.accessioned | 2019-11-13T08:25:22Z | |
dc.date.available | 2019-11-13T08:25:22Z | |
dc.date.issued | 2019-11 | |
dc.date.issued | 2019-11 | |
dc.identifier.citation | Baruffi F, Gülçür M, Calaon M et al (2019) Correlating nano-scale surface replication accuracy and cavity temperature in micro-injection moulding using in-line process control and high-speed thermal imaging. Journal of Manufacturing Processes. 47: 367-381. | en_US |
dc.identifier.uri | http://hdl.handle.net/10454/17436 | |
dc.identifier.uri | http://hdl.handle.net/10454/17436 | |
dc.description | Yes | en_US |
dc.description.abstract | Micro-injection moulding (μIM) stands out as preferable technology to enable the mass production of polymeric components with micro- and nano-structured surfaces. One of the major challenges of these processes is related to the quality assurance of the manufactured surfaces: the time needed to perform accurate 3D surface acquisitions is typically much longer than a single moulding cycle, thus making impossible to integrate in-line measurements in the process chain. In this work, the authors proposed a novel solution to this problem by defining a process monitoring strategy aiming at linking sensitive in-line monitored process variables with the replication quality. A nano-structured surface for antibacterial applications was manufactured on a metal insert by laser structuring and replicated using two different polymers, polyoxymethylene (POM) and polycarbonate (PC). The replication accuracy was determined using a laser scanning confocal microscope and its dependence on the variation of the main μIM parameters was studied using a Design of Experiments (DoE) experimental approach. During each process cycle, the temperature distribution of the polymer inside the cavity was measured using a high-speed infrared camera by means of a sapphire window mounted in the movable plate of the mould. The temperature measurements showed a high level of correlation with the replication performance of the μIM process, thus providing a fast and effective way to control the quality of the moulded surfaces in-line. | en_US |
dc.description.sponsorship | MICROMAN project (“Process Fingerprint for Zero-defect Net-shape MICRO MANufacturing”, http://www.microman.mek.dtu.dk/) - H2020 (Project ID: 674801), H2020 agreement No. 766871 (HIMALAIA), H2020 ITN Laser4Fun (agreement No. 675063) | en_US |
dc.language.iso | en | en_US |
dc.rights | © 2019 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/) | en_US |
dc.subject | Micro-injection moulding | en_US |
dc.subject | Flow visualisation | en_US |
dc.subject | Surface replication | en_US |
dc.subject | In-line quality assurance | en_US |
dc.title | Correlating nano-scale surface replication accuracy and cavity temperature in micro-injection moulding using in-line process control and high-speed thermal imaging | en_US |
dc.status.refereed | Yes | en_US |
dc.date.application | 2019-10-22 | |
dc.type | Article | en_US |
dc.type.version | Accepted manuscript | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.jmapro.2019.08.017 | |
refterms.dateFOA | 2019-11-13T08:28:44Z | |
dc.date.accepted | 2019-08-20 |