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Development of SLM process parameters for thin-walled nickel superalloy components
Kafka, Richard ; Dočekalová, Kateřina (referee) ; Koutný, Daniel (advisor)
The diploma thesis deals with the development of process parameters of SLM technology for the material IN718. The main goal is an experimental development of a set of parameters for the production of thin-walled parts with regard to material density, surface roughness and tightness. The essence of the development of parameters is an experimental explanation of the influence of laser power and scanning speed on the morphology of single tracks, which are used for the production of a thin wall. Together with walls of larger widths and volume samples, it is possible to create an intersection of parameters by which is possible to create components formed by a combination of thin-walled and volume geometry. The performed research created a material set, where the parameters of thin walls are used for the area of contours of bulk samples. We managed to produce a wall with an average width of 0.15 mm and roughness of 6 m, which meets the requirement for the tightness. The meander scanning pattern achieved a relative material density of 99.92%, which is more than with the supplier's parameters. Based on the acquired knowledge, it was possible to apply a set of parameters to components combining both geometries.
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Design of experimental 3D printer for concrete
Kafka, Richard ; Hurník, Jakub (referee) ; Koutný, Daniel (advisor)
This bachelor thesis deals with a structural design of 3D printer for concrete used for printing building elements which cannot be made by traditional methods. Printer allows testing new building materials and their structure in a part of 3D printing. In the thesis, the research was conducted into existing 3D concrete printing methods and kinds of printers. Next follows description of main parts of printer and their types. In the second chapter is analysed knowledge described in the previous chapter and based of the findings is chosen the most appropriated solution. The design part of the thesis specifies three types of conceptual solutions which are compared with multiple aspects and one of them is selected. The following chapter contains a detailed design of the selected conceptual solution, where positioning systems, linear guides and drives chosen based on the forces and moments arising during printing. The result is a frame printer design using a portal system of three mutually perpendicular axes. Due to its size, the printer can be placed outdoors or in a production hall.
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Development of SLM process parameters for thin-walled nickel superalloy components
Kafka, Richard ; Dočekalová, Kateřina (referee) ; Koutný, Daniel (advisor)
The diploma thesis deals with the development of process parameters of SLM technology for the material IN718. The main goal is an experimental development of a set of parameters for the production of thin-walled parts with regard to material density, surface roughness and tightness. The essence of the development of parameters is an experimental explanation of the influence of laser power and scanning speed on the morphology of single tracks, which are used for the production of a thin wall. Together with walls of larger widths and volume samples, it is possible to create an intersection of parameters by which is possible to create components formed by a combination of thin-walled and volume geometry. The performed research created a material set, where the parameters of thin walls are used for the area of contours of bulk samples. We managed to produce a wall with an average width of 0.15 mm and roughness of 6 m, which meets the requirement for the tightness. The meander scanning pattern achieved a relative material density of 99.92%, which is more than with the supplier's parameters. Based on the acquired knowledge, it was possible to apply a set of parameters to components combining both geometries.
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|
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Design of experimental 3D printer for concrete
Kafka, Richard ; Hurník, Jakub (referee) ; Koutný, Daniel (advisor)
This bachelor thesis deals with a structural design of 3D printer for concrete used for printing building elements which cannot be made by traditional methods. Printer allows testing new building materials and their structure in a part of 3D printing. In the thesis, the research was conducted into existing 3D concrete printing methods and kinds of printers. Next follows description of main parts of printer and their types. In the second chapter is analysed knowledge described in the previous chapter and based of the findings is chosen the most appropriated solution. The design part of the thesis specifies three types of conceptual solutions which are compared with multiple aspects and one of them is selected. The following chapter contains a detailed design of the selected conceptual solution, where positioning systems, linear guides and drives chosen based on the forces and moments arising during printing. The result is a frame printer design using a portal system of three mutually perpendicular axes. Due to its size, the printer can be placed outdoors or in a production hall.
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