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Design of support structures for parts made of Inconel 718
Kuhajdik, Matej ; Hutař, Pavel (oponent) ; Koutný, Daniel (vedoucí práce)
This master thesis deals by the design of support structures for the production of parts made of nickel superalloy IN718 using selective laser melting (SLM). The aim of this work is to design a support structure so that technological problems (excessive deformation of the part due to high residual stresses and insufficient heat dissipation) are eliminated and replace the use of massive volume support, which is inefficient in terms of design and production time, consumed material and postprocessing. Mechanical behaviour of residual stresses of built component, design points of selected support structures (perforated block with pins, BCCZ with perforated contour) and design recommendations were quantified by using thermo-mechanical simulations of production and series of experiments. The functional sample was tested by designing specific support structures for the turbine wheel with subsequent production. The support structure ensured safe, successful production without potential problems and met the requirement to minimize material consumption through effective large-scale perforation of the structure.
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Podpůrné struktury pro 3D tisk z kovových materiálů
Hruboš, David ; Vrána, Radek (oponent) ; Koutný, Daniel (vedoucí práce)
Tato bakalářská práce se zabývá aditivní technologií selective laser melting, která umožňuje výrobu 3D objektů z kovových prášků. U toho procesu jsou většinou vyžadovány podpůrné struktury, které odvádějí z vyráběné oblasti teplo a ukotvují součást k základní desce. V práci byly navrženy čtyři nové typy podpůrných struktur. Byla otestována jejich funkčnost a poté byly ve zkoušce tahem porovnány mechanické vlastnosti navržených struktur.
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Design of support structures for parts made of Inconel 718
Kuhajdik, Matej ; Hutař, Pavel (oponent) ; Koutný, Daniel (vedoucí práce)
This master thesis deals by the design of support structures for the production of parts made of nickel superalloy IN718 using selective laser melting (SLM). The aim of this work is to design a support structure so that technological problems (excessive deformation of the part due to high residual stresses and insufficient heat dissipation) are eliminated and replace the use of massive volume support, which is inefficient in terms of design and production time, consumed material and postprocessing. Mechanical behaviour of residual stresses of built component, design points of selected support structures (perforated block with pins, BCCZ with perforated contour) and design recommendations were quantified by using thermo-mechanical simulations of production and series of experiments. The functional sample was tested by designing specific support structures for the turbine wheel with subsequent production. The support structure ensured safe, successful production without potential problems and met the requirement to minimize material consumption through effective large-scale perforation of the structure.
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Podpůrné struktury pro 3D tisk z kovových materiálů
Hruboš, David ; Vrána, Radek (oponent) ; Koutný, Daniel (vedoucí práce)
Tato bakalářská práce se zabývá aditivní technologií selective laser melting, která umožňuje výrobu 3D objektů z kovových prášků. U toho procesu jsou většinou vyžadovány podpůrné struktury, které odvádějí z vyráběné oblasti teplo a ukotvují součást k základní desce. V práci byly navrženy čtyři nové typy podpůrných struktur. Byla otestována jejich funkčnost a poté byly ve zkoušce tahem porovnány mechanické vlastnosti navržených struktur.
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