Μελέτη του συστήματος ελέγχου κίνησης και της προστασίας έναντι της οξείδωσης της κατεργαζόμενης περιοχής σε πρωτότυπη μηχανή SLS/SM

Ιάσων, Σιδέρης; Iason, Sideris

dc.contributor.author	Ιάσων, Σιδέρης	el
dc.contributor.author	Iason, Sideris	en
dc.date.accessioned	2018-09-17T11:18:35Z
dc.date.available	2018-09-17T11:18:35Z
dc.date.issued	2018-09-17
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/47612
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.15793
dc.rights	Αναφορά Δημιουργού-Όχι Παράγωγα Έργα 3.0 Ελλάδα	*
dc.rights.uri	http://creativecommons.org/licenses/by-nd/3.0/gr/	*
dc.subject	SLS/SLM,Motion Control,Oxidation,Additive Manufacturing	el
dc.title	Μελέτη του συστήματος ελέγχου κίνησης και της προστασίας έναντι της οξείδωσης της κατεργαζόμενης περιοχής σε πρωτότυπη μηχανή SLS/SM	el
heal.type	bachelorThesis
heal.secondaryTitle	Study on motion control and on protection of the processed area against oxidation for a prototype SLS/SLM machine	en
heal.classification	Εργαλειομηχανές και παρελκόμενα	el
heal.classificationURI	http://data.seab.gr/concepts/9fcf9a9131e5d049aee10dde671c21b52fabf4c9
heal.language	el
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2018-05-20
heal.abstract	The scope of this thesis is the evolution of the existing control schemes found in the prototype SLS/SLM machine (Selective Laser Sintering { Melting ) of the Manufacturing Technology Laboratory at the School of Mechanical Engineering of NTU of Athens and the design of an innovative apparatus for local chamber insulation. The aim of the study is to create a high precision machine, with the capability of controlling manufacturing parameters and fully harness the advantages of this additive manufacturing technique. The rst subject developed is the design of a robust and precise control scheme driving the movement of the laser head. After proving that controlling each axis separately does not provide su cient accuracy in tracking, three cross-coupled control schemes were tested in both transient and steady state responses for linear and non-linear paths. Selection was based in criteria of response quality. Next in order, is the exploration of an adaptive control architecture used for on-line manipulation of powder temperature. After investigating the physical aspects and the possible solutions concerning this matter, an adaptive scheme is proposed based on the existing equipment of our lab. Finally, we proceeded in the research for means of locally insulating the SLS-SLM machine, by creating an apparatus fastened to laser head. A ventilation system attached to the apparatus prohibits oxygen entering the chamber.	el
heal.advisorName	Βοσνιάκος, Γεώργιος	el
heal.committeeMemberName	Μακρόπουλος, Άγγελος	el
heal.committeeMemberName	Μανωλάκος, Δημήτριος	el
heal.committeeMemberName	Βοσνιάκος, Γεώργιος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Τεχνολογίας των Κατεργασιών	el
heal.academicPublisherID	ntua
heal.numberOfPages	148 σ.
heal.fullTextAvailability	true