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3D metal printing
Vrána, Pavel ; Herčík, Tomáš (referee) ; Řiháček, Jan (advisor)
The work presents a literature search of current technologies for 3D metal printing. In the introduction, the individual methods are divided according to the forms of material into powder, wire, and string. The methods using metal powder are SLS, EBM, and DED. Other methods are ADAM, PMD, and WAAM. For each technology are described the principle, printable materials, usage, and example of the product. For methods using electric arc are described possible metal transfers and their limitations.
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Workability study 3D metal printing as technology for prototype plastic parts manufacturing
Kovář, Tomáš ; Herčík, Tomáš (referee) ; Sigmund, Marian (advisor)
This bachelor thesis is focused on the feasibility of metallic 3D printing. The 90MnCrV8 tool steel die is time consuming and expensive to manufacture by conventional methods. When considering the use of a die for a maximum of 50 pieces of moldings, it is possible to choose a material other than tool steel. From the offered possibilities of metal 3D printing, 2 suitable methods were selected, namely SLM and WAAM, where the WAAM method appears to be cheaper. Available materials for steel replacement 90MnCrV8 are metal wire G4Si1 for WAAM method and stainless steel X2CrNiMo17-12-2 for the SLM method. After listing all the options and evaluations, it can be seen that the feasibility of metallic 3D printing as a replacement for conventional tool production is possible.
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The design of extruding devioce and experimental material for semi-melt alloy printing
Slezák, Tomáš ; Řehořek, Lukáš (referee) ; Jan, Vít (advisor)
This bachelor thesis deals with the possibilities of using metallic materials for FDM 3D printing. An overview of the available metallic 3D printing methods is presented in the theoretical part of this thesis. In addition, attention is paid to alternative 3D printing methods based on thixocasting and rheocasting. The first experimental part focuses on the design of suitable alloys that could be used for semi-solid 3D printing. The alloys were subjected to analyses that provide more detailed information on the microstructure, chemical composition and processes that take place during the cooling of the melt of each alloy. The results of these analyses led to the selection of the alloy used in the FDM 3D printing trial. According to information obtained from the research work of other authors, an extruder was designed in the second part of the thesis. The design of the 3D printer was derived from the extruder. The results of the experimental print were only partially successful, However, this provided valuable information for further extruder design modifications and more material analysis data about the printed material.
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Workability study 3D metal printing as technology for prototype plastic parts manufacturing
Kovář, Tomáš ; Herčík, Tomáš (referee) ; Sigmund, Marian (advisor)
This bachelor thesis is focused on the feasibility of metallic 3D printing. The 90MnCrV8 tool steel die is time consuming and expensive to manufacture by conventional methods. When considering the use of a die for a maximum of 50 pieces of moldings, it is possible to choose a material other than tool steel. From the offered possibilities of metal 3D printing, 2 suitable methods were selected, namely SLM and WAAM, where the WAAM method appears to be cheaper. Available materials for steel replacement 90MnCrV8 are metal wire G4Si1 for WAAM method and stainless steel X2CrNiMo17-12-2 for the SLM method. After listing all the options and evaluations, it can be seen that the feasibility of metallic 3D printing as a replacement for conventional tool production is possible.
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3D metal printing
Vrána, Pavel ; Herčík, Tomáš (referee) ; Řiháček, Jan (advisor)
The work presents a literature search of current technologies for 3D metal printing. In the introduction, the individual methods are divided according to the forms of material into powder, wire, and string. The methods using metal powder are SLS, EBM, and DED. Other methods are ADAM, PMD, and WAAM. For each technology are described the principle, printable materials, usage, and example of the product. For methods using electric arc are described possible metal transfers and their limitations.
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