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Effect of polymer type on the properties of 3D printed auxetic structures
Zbíral, Roman ; Štaffová, Martina (referee) ; Jančář, Josef (advisor)
This thesis deals with special structures such as optical, acoustic and mechanic metamaterials, which has their own specific properties. Auxetic materials as subgroup of mechanical metamaterials has its own special arrangement of sub-cells, that is bound to negative Poisson’s ratio. With mechanical load auxetic materials change its own density, geometry of structure and in thrust only change its internal structure instead of breaking. Most of these materials are made using additive technologies such as 3D print which allows better quality of produced structure and are made of special polymers which provide expected properties.
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Additive technologies in the automotive industry
Beneš, Petr ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
The deals of this bachelor's thesis are individual technologies of additive manufacturing and their use in the field of automotive production and development of automotive parts. As part of the work, five specific additive manufacturing methods with the greatest benefit to the automotive industry were selected. The technological procedures were described and characterized their essence, possibilities, pros and cons. The following is a detailed description of how the mentioned technologies are currently used in automotive production. The description is supplemented with examples of specific parts and projects where additive manufacturing was used. In conclusion, the possible future direction of the development of additive technologies is evaluated with the aim of expanding their use in automobile production. The thesis gains information mainly from foreign internet portals publishing articles in the field of the automotive industry or production technologies. The websites of 3D printer manufacturers and companies involved in the commercial use of additive manufacturing were also a quality source of information.
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Effect of polymer type on the properties of 3D printed auxetic structures
Zbíral, Roman ; Štaffová, Martina (referee) ; Jančář, Josef (advisor)
This thesis deals with special structures such as optical, acoustic and mechanic metamaterials, which has their own specific properties. Auxetic materials as subgroup of mechanical metamaterials has its own special arrangement of sub-cells, that is bound to negative Poisson’s ratio. With mechanical load auxetic materials change its own density, geometry of structure and in thrust only change its internal structure instead of breaking. Most of these materials are made using additive technologies such as 3D print which allows better quality of produced structure and are made of special polymers which provide expected properties.
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