--- _id: '4919' abstract: - lang: eng text: "AbstractThe industrial production ofwood-based compo-sites (WBCs) features the core processes in theforming and press line,which are characterisedby densification and the curing of resin-blended furnish materialto obtain a panel from a formed mat in a continuous or batch-wise process.Here, the reliable measurement of process parameters and panel properties is indispensablefor moni-toring and controllingproductionand quality.The in-plane area density(\U0001D70CA)of the mat and the raw density(\U0001D70C)of the panel,along withits vertical rawdensity profile (RDP),aretypically determined through nondestructivemeans of radiometric de-vices.X-ray systems for density \ measurement on WBCsare commonly usedin both industry and research. Theyfollow a similar basic princi-pleof radiation transmissionwith specificsetups depending \ onthe measuring taskat hand. De-tector signalsare evaluated regarding relative radiation transmission, which is well-knownto followBeer’s law of \ exponential attenuation.Note here, particular conditions regarding radia-tion \ (energyand beam geometry) and material properties (consistent and homogeneous) \ are expected. These conditions, however, cannot be consistently achieved in \ applied radiometric in-vestigationson WBCs [...]" - lang: ger text: "AbstractXVIIprovided by the present thesis. The practicalim-plementation, \ however,must consequentlybe performed by the device manufactures. The us-ers of such modern X-raysystems are enabledto obtain enhanced quality of their measuring re-sults, which is relevant for both WBC science(wide range of partly \ new composites) and in-dustry (increasing requirements on reliability and accuracy).Eventually, the properapplication of capable nondestructive evaluation \ methods by valid and precise measuring systems for moni-toring and controllingquality and processparam-etersin WBC production offersthe possibility ofachievingsavings \ in raw materials and energy consumption as well as fundamental \ ap-proaches forimprovingWBC production, thus,to optimise processconditionsand \ materialprop-ertiesin general.\r\nKurzfassungDie industrielle Produktion von plattenförmigen Holzwerkstoffen (HWS) wirdmaßgeblich durchdie Kernprozessein der Form-und Pressen-straßebestimmt. Die Plattenherstellung ist durch die Verdichtung und Aushärtung von geformten Mattenaus beleimtenHolzpartikelngekenn-zeichnet, was in kontinuierlichen oder taktwei-sen Prozessenerfolgt. Dabei ist diezuverlässige Messung von Prozessparametern und Plattenei-genschaften fürdieÜberwachung und \ Steue-rung von Produktion und Qualitätunabdingbar. Die Bestimmung des Flächengewichts(Flächen-dichte \U0001D70CA)der Matte und der Rohdichte(\U0001D70C)der Platte sowie des vertikalen Rohdichteprofils (RDP) erfolgt für gewöhnlich zerstörungsfrei mit-tels \ radiometrischer Geräte. Heute sind sowohl in der Industrie als auch in der Forschung Rönt-gensysteme zur Dichtemessung (Densitometrie) an Holz und Holzwerkstoffen verbreitet. Deren Grundprinzip zur Durchstrahlung ist ähnlich, wo-hingegen sich der jeweilige Aufbau in Abhängig-keit der Messaufgabeund auch in Bezug auf den Geräteherstellerunterscheidet. Die aus den ge-messenen Detektorsignalen ausgewertete \ rela-tive Durchstrahlung kann durch das hinlänglich bekannte Beer’scheGesetzfür die exponentielle Schwächungbeschrieben werden. Die Gültigkeit setzt bestimmte \ Bedingungen in Bezug auf Strahlung (Energie und Strahlgeometrie) und Materialeigenschaften (konsistentund homo-gen) voraus, die bei radiometrischen Untersu-chungen an HWSin der allgemeinen Praxis je-doch nicht angemessen erfüllt \ werden können [...]" alternative_title: - Angewandte Untersuchungen an Holzwerkstoffen im Zusammenhang mit der Dichtemessung mittels Röntgenstrahlung author: - first_name: Konrad full_name: Solbrig, Konrad id: '59789' last_name: Solbrig citation: ama: 'Solbrig K. Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky ; 2019.' apa: 'Solbrig, K. (2019). Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky .' bjps: 'Solbrig K (2019) Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky .' chicago: 'Solbrig, Konrad. Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019.' chicago-de: 'Solbrig, Konrad. 2019. Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky .' din1505-2-1: 'Solbrig, Konrad: Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg  : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019' havard: K. Solbrig, Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry, Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , Hamburg , 2019. ieee: 'K. Solbrig, Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019.' mla: Solbrig, Konrad. Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019. short: K. Solbrig, Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry, Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , Hamburg , 2019. ufg: 'Solbrig, Konrad (2019): Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry, Hamburg .' van: 'Solbrig K. Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky ; 2019. 453 p.' date_created: 2021-02-09T09:31:41Z date_updated: 2023-03-15T13:49:56Z ddc: - '660' keyword: - density measurement - radiation transmission - porous low-Z composite material - true density - elemental composition and ash content - effective atomic number - mass attenuation coefficient - X-ray energy spectrum - law of attenuation - beam hardening and radiation build-up - radiation-physical interdependencies - Dichtemessung - Durchstrahlung - poröser Verbundwerkstoff - Reindichte - elementare Zusammensetzung und Aschegehalt - effektive Ordnungszahl - Massenschwächungskoeffizient - Röntgenspektrum - Schwächungsgesetz - Strahlaufhärtung und Strahlungsaufbau - strahlungsphysikalische Wechselbeziehungen language: - iso: eng main_file_link: - open_access: '1' url: 'https://ediss.sub.uni-hamburg.de/handle/ediss/8756 ' oa: '1' page: '453' place: 'Hamburg ' publication_status: published publisher: 'Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky ' status: public supervisor: - first_name: Jörg full_name: Ressel, Jörg last_name: Ressel - first_name: Heiko full_name: Thömen, Heiko last_name: Thömen title: Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry type: dissertation urn: urn:nbn:de:gbv:18-ediss-89270 user_id: '68554' year: 2019 ... --- _id: '552' abstract: - lang: eng text: 'Since additive manufacturing (AM) is continuously growing, the influence of processing conditions and setup parameters on microstructural and mechanical properties of additively manufacturedcomponents needs to be clarified. The paper discusses an experimental approach for the identification of influencing parameters in Selective Laser Melting; this consists of an evaluation of the mechanical and physical properties of final parts, depending on the chosen process parameters. The Design of Experiments is used to get valid results from a limited number of experiments. The research work focuses on the application of a Definitive Screening Design to identify the most important influencing parameters: Several parameters of the hatch and the contour exposure are varied, as well as the position and orientation of the samples in the build chamber. A maraging steel and a CoCr alloy are used, and the mechanical and physical properties of the samples are evaluated. The interdependencies between the variation of the factors and the observed properties are analyzed.' author: - first_name: F. full_name: Simoni, F. last_name: Simoni - first_name: Andrea full_name: Huxol, Andrea id: '43559' last_name: Huxol - first_name: Franz-Josef full_name: Villmer, Franz-Josef id: '14290' last_name: Villmer citation: ama: 'Simoni F, Huxol A, Villmer F-J. Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: Villmer F-J, Padoano E, Department of Production Engineering and Management, eds. Production Engineering and Management. Lemgo; 2018:43-55.' apa: Simoni, F., Huxol, A., & Villmer, F.-J. (2018). Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In F.-J. Villmer, E. Padoano, & Department of Production Engineering and Management (Eds.), Production Engineering and Management (pp. 43–55). Lemgo. bjps: Simoni F, Huxol A and Villmer F-J (2018) Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In Villmer F-J, Padoano E and Department of Production Engineering and Management (eds), Production Engineering and Management. Lemgo, pp. 43–55. chicago: Simoni, F., Andrea Huxol, and Franz-Josef Villmer. “Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts.” In Production Engineering and Management, edited by Franz-Josef Villmer, Elio Padoano, and Department of Production Engineering and Management, 43–55. Lemgo, 2018. chicago-de: 'Simoni, F., Andrea Huxol und Franz-Josef Villmer. 2018. Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: Production Engineering and Management, hg. von Franz-Josef Villmer, Elio Padoano, und Department of Production Engineering and Management, 43–55. Lemgo.' din1505-2-1: 'Simoni, F. ; Huxol, Andrea ; Villmer, Franz-Josef: Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: Villmer, F.-J. ; Padoano, E. ; Department of Production Engineering and Management (Hrsg.): Production Engineering and Management. Lemgo, 2018, S. 43–55' havard: 'F. Simoni, A. Huxol, F.-J. Villmer, Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts, in: F.-J. Villmer, E. Padoano, Department of Production Engineering and Management (Eds.), Production Engineering and Management, Lemgo, 2018: pp. 43–55.' ieee: F. Simoni, A. Huxol, and F.-J. Villmer, “Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts,” in Production Engineering and Management, Lemgo, 2018, no. 1, pp. 43–55. mla: Simoni, F., et al. “Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts.” Production Engineering and Management, edited by Franz-Josef Villmer et al., no. 1, 2018, pp. 43–55. short: 'F. Simoni, A. Huxol, F.-J. Villmer, in: F.-J. Villmer, E. Padoano, Department of Production Engineering and Management (Eds.), Production Engineering and Management, Lemgo, 2018, pp. 43–55.' ufg: 'Simoni, F. et. al. (2018): Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts, in: Franz-Josef Villmer et. al. (Hgg.): Production Engineering and Management, Lemgo, S. 43–55.' van: 'Simoni F, Huxol A, Villmer F-J. Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: Villmer F-J, Padoano E, Department of Production Engineering and Management, editors. Production Engineering and Management. Lemgo; 2018. p. 43–55.' conference: end_date: 2018-10-05 location: Lemgo name: Proceedings 8th International Conference start_date: 2018-10-04 corporate_editor: - Department of Production Engineering and Management - Hochschule Ostwestfalen-Lippe date_created: 2019-02-13T14:11:15Z date_updated: 2023-03-15T13:50:00Z department: - _id: DEP1306 editor: - first_name: Franz-Josef full_name: Villmer, Franz-Josef last_name: Villmer - first_name: Elio full_name: Padoano, Elio last_name: Padoano issue: '1' keyword: - Additive manufacturing - Process parameters - Design of Experiments - Density measurement language: - iso: eng main_file_link: - open_access: '1' url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM2018_proceedings_web.pdf oa: '1' page: 43-55 place: Lemgo publication: Production Engineering and Management publication_identifier: isbn: - 978-3-946856-03-0 publication_status: published status: public title: Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts type: conference user_id: '45673' year: 2018 ...