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Item type:Publication, Access status: with files , Comparing friction of additively manufactured materials with animal blood vesselsThe replication of blood vessels for training and research purposes is possible with the help of additively manufactured (AM) models. However, a meaningful evaluation of the quality of the haptics, here concentrating on friction characteristics, of additively manufactured blood vessel models compared to human vessels is difficult and often only based on subjective assessments. To enable an objective comparison of friction of different AM materials, tests were performed in which a braided stent was pulled through straight test tubes. The force required to do so was measured. The same test setup was used to examine animal blood vessels so that these results could be compared with the findings of the AM materials. In addition, physicians were asked for their assessment of the haptics concerning friction of different materials. Summarizing the results, for the tested Formlabs materials Flexible 80A and Elastic 50A, it can be stated that Flexible 80A is strongly recommended for the replication of blood vessels - even though it is comparatively smooth. The Elastic 50A should only be used for training with increased difficulty since the models are stickier and a flipping of instruments is possible. Coating the materials only involve effort that is not reflected in the benefits.Publicationtype: Journal ArticleScopus© Citations 1 65 308 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Entwicklung und Anwendung von Sonderprüfständen(Springer, 2020-11); ; ; ; Ein wichtiger Bestandteil der Forschungsarbeiten des PKT stellt das Arbeiten mit verschiedensten Prüfständen dar.Publicationtype: Book Part98 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Transfer von Hochleistungswerkstoffen in die ProduktentwicklungAuf Grund eines grundsätzlich anderen Verhaltens von Werkstoffen, wie Keramiken oder Faserverbundwerkstoffen, muss das werkstoffspezifische Verhalten so beschrieben werden, dass es in der Produktentwicklung zur Verfügung gestellt werden kann.Publicationtype: Book Part95 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Untersuchung des trockenen Reibungs- und Verschleißverhaltens von Keramikwerkstoffen an einem Linearprüfstand für Kolben-Zylinder-LaufpaarungenIn order to retrieve universal but also realistic material characteristics for the development of a dry running ceramic piston-cylinder combination for use in hot-Air motors like stirling machines a test rig was built at PKT Hamburg. With this, first test results were achieved and the ability of the test rig and the evaluation methods to gain the constructively relevant tribologic data is shown. 6 ceramic material combinations were tested and the tribologic data gained reveals differing effects on surface roughness and wear in combina-Tions with silicium nitride versus the other materials. Also there are shown significant differences in wear rate, mainly effected component and variation in time of the wear of the examined material combinations.Publicationtype: Conference Paper125