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Design of a chamber for storing metal powders
Jeleček, Petr ; Červinek, Ondřej (referee) ; Koutný, Daniel (advisor)
Additive manufacturing from metallic materials is a continously evolving branch of the engineering industry, where correct material storage is a crucial aspect. The main objective of this bachelor’s thesis is to create a structural design of a chamber for storing barrels containing metal powders. A survey of commercially available storage systems highlighted a gap in the market, specifically of fully or partialy automated storage systems that could also be used in a laboratory environment. The conceptual designs are inspired by commercially available storage systems and include a new, unconventional solution. After the evaluation of conceptual designs a specific structural design was developed that met the project criteria. The final design enables storing barrels containing metal powders in an inert atmosphere and partialy automates the transport of barrels between the storage and the work space.
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Oxidative passivation of metal powder
Kuna, Petr ; Solný, Tomáš (referee) ; Šoukal, František (advisor)
This thesis deals with the study of the effect of the oxide layer on the surface of metal powder on selected properties of fuel-oxidizer pyrotechnic system. Research includes finding optimal thickness of the oxide layer with using XPS and SEM methods, its conditions of formation and its influence on pressure-time curve and to resistance to ESD.
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The construction of the magnetic metal powder separator
Papaj, Lukáš ; Suchý, Jan (referee) ; Paloušek, David (advisor)
This thesis deals with the design of construction for recyclation metal powder, which is used in multi-material 3D printing with SLM technology. More specifically it is separation of mixed metal powders by magnetic separator, which is capable of separating two powders with the same distributions. Based on knowledge from industrial separators and successful experiment method of separating with magnetic drum was chosen, on which is equally driven metal powder from vibrating feeder. In executed experiment was discovered, that the method is appropriate for separating non-magnetic powder but for high quality separation of magnetic powder must be adjusted speed of feeding. Next was processed drawing documentation for this variant. By this documentation can be separator assembled and used in laboratory for separating metal powders.
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Review of materials used for the manufacturing by the Selective Laser Melting technology
Skalický, Petr ; Vrána, Radek (referee) ; Koukal, Ondřej (advisor)
This bachelor thesis aims to provide an overview of metallic materials (powders), which are used in the manufacture of parts and models with SLM (Selective Laser Melting) technology. It contains basic information about Rapid Prototyping (RP) technology and more detailed description of basic methods of RP, especially SLM. Next is a description of manufacture powders methods and its properties. The last section contains an overview of powdery materials as powders made of pure metal (one kind of metal material) and powders produced from metal alloys. This review focuses on the most important and most widely used materials for the manufacture of parts using SLM.
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Design of storage containers for powdered metal materials
Vaverka, Ondřej ; Koukal, Ondřej (referee) ; Koutný, Daniel (advisor)
This bachelor’s thesis deals with design of storage container for powdered metal materials used in 3D printer. It contains a short overview of possibilities in metal powders storage, SLM workplace’s requirements and analysis of this problem. Based on this, the goals are specified. The work deals with various solutions and their assessments. In the last part the final version is described, including neccessary calculations and drawings.
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Oxidative passivation of metal powder
Kuna, Petr ; Solný, Tomáš (referee) ; Šoukal, František (advisor)
This thesis deals with the study of the effect of the oxide layer on the surface of metal powder on selected properties of fuel-oxidizer pyrotechnic system. Research includes finding optimal thickness of the oxide layer with using XPS and SEM methods, its conditions of formation and its influence on pressure-time curve and to resistance to ESD.
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The construction of the magnetic metal powder separator
Papaj, Lukáš ; Suchý, Jan (referee) ; Paloušek, David (advisor)
This thesis deals with the design of construction for recyclation metal powder, which is used in multi-material 3D printing with SLM technology. More specifically it is separation of mixed metal powders by magnetic separator, which is capable of separating two powders with the same distributions. Based on knowledge from industrial separators and successful experiment method of separating with magnetic drum was chosen, on which is equally driven metal powder from vibrating feeder. In executed experiment was discovered, that the method is appropriate for separating non-magnetic powder but for high quality separation of magnetic powder must be adjusted speed of feeding. Next was processed drawing documentation for this variant. By this documentation can be separator assembled and used in laboratory for separating metal powders.
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