Publicação
Effect of Laser Parameters on Through-Thickness Local Hardness of Polypropylene Plates
| dc.contributor.author | Guimarães, André | |
| dc.contributor.author | Gomes, Daniel | |
| dc.contributor.author | Vieira, André | |
| dc.contributor.author | Oliveira, Serafim M. | |
| dc.date.accessioned | 2026-02-27T10:26:51Z | |
| dc.date.available | 2026-02-27T10:26:51Z | |
| dc.date.issued | 2025-06-04 | en_US |
| dc.date.updated | 2026-02-12T23:03:23Z | |
| dc.description.abstract | Laser technology is widely regarded as a highly effective method for welding thermoplastic polymers due to its precision, cleanliness, and versatility. This study investigates the effects of laser power and scanning speed on the through-thickness hardness of polypropylene plates, analyzing the heat-affected zone (HAZ) and hardness variations along the depth of the weld bead. Using the Trumpf Trudisk 6602 laser source, multiple polypropylene passes were made with different power levels (200 W and 300 W) and scanning speeds (5, 10, 20, 30, 40, and 50 mm/s). The results indicate a direct correlation between laser power and scanning speed in the final width and depth of the weld bead. Furthermore, results indicate that higher scanning speeds and lower power promote a more uniform distribution of hardness across the thickness. This study contributes to understanding laser-assisted welding processes in polymeric materials, providing information on the influence of different laser parameters on weld quality and resulting material properties. | eng |
| dc.description.version | info:eu-repo/semantics/publishedVersion | |
| dc.identifier.citation | Guimarães, A.; Gomes, D.; Vieira, A.; Oliveira, S.M. Effect of Laser Parameters on ThroughThickness Local Hardness of Polypropylene Plates. Materials 2025, 18, 2638. https://doi.org/10.3390/ ma18112638 | |
| dc.identifier.doi | 10.3390/ma18112638 | en_US |
| dc.identifier.issn | 1996-1944 | en_US |
| dc.identifier.slug | cv-prod-4181932 | |
| dc.identifier.uri | http://hdl.handle.net/10400.19/9710 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.relation | 10.54499/UIDB/05583/2020 | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | polypropylene | |
| dc.subject | laser processing | |
| dc.subject | polymer welding | |
| dc.subject | bead characteristics | |
| dc.title | Effect of Laser Parameters on Through-Thickness Local Hardness of Polypropylene Plates | en_US |
| dc.type | research article | en_US |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 11 | en_US |
| oaire.citation.startPage | 2638 | |
| oaire.citation.title | Materials | en_US |
| oaire.citation.volume | 18 | en_US |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Guimarães | |
| person.givenName | André | |
| person.identifier.ciencia-id | AE12-CE94-82B0 | |
| person.identifier.orcid | 0000-0001-6346-5719 | |
| rcaap.cv.cienciaid | AE12-CE94-82B0 | André Guimarães | |
| rcaap.rights | openAccess | en_US |
| relation.isAuthorOfPublication | 6d7402ff-c1c5-44bd-845c-a8300b11da5c | |
| relation.isAuthorOfPublication.latestForDiscovery | 6d7402ff-c1c5-44bd-845c-a8300b11da5c |