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Design of auxetic structures for the 3D print
Sobol, Vítězslav ; Škaroupka, David (referee) ; Červinek, Ondřej (advisor)
Behavior in which the material expands in one direction and in a perpendicular direction under tensile loading is called auxetic and is associated, e. g. with increased indentation resistance. Auxetic behavior is mainly due to the typical geometry of the internal structure. Therefore, it can be achieved by a unique arrangement of inner micro-lattice structure. Through additive technologies such as Selective Laser Melting (SLM), it is possible to manufacture such complex geometry. This bachelor thesis deals with the design of a spatial micro-lattice structure that will exhibit auxetic behavior and can be made by the SLM method. Based on an extensive research on the topic of 2D and 3D auxetic structures, a new type of auxetic structure was designed. The manufacturability was verified by making several samples in different dimensional configurations. Auxeticity and mechanical properties were subsequently tested using a drop test. By evaluating it, it was possible to determine the influence of dimensional parameters on the overall behavior of the structure.
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Design technology for the production of custom advertising article
Konečný, Lukáš ; Dvořáček, Jan (referee) ; Kalivoda, Milan (advisor)
The project worked out in the framework of the Bachelor's study presents a proposal of producing technology of an advertising article in shape of a razor blade made from stainless steel 316L, in jewellery commonly called surgical stainless steel. Expected batch production is 100 pieces. In the thesis is compared technology for the production on a knee-type CNC milling machine with a laser cutting machine. A production drawing of a razor blade is given as a material for manufacture. A part of this project is an economic evaluation and a conclusion of suggested technology.
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Design of auxetic structures for the 3D print
Sobol, Vítězslav ; Škaroupka, David (referee) ; Červinek, Ondřej (advisor)
Behavior in which the material expands in one direction and in a perpendicular direction under tensile loading is called auxetic and is associated, e. g. with increased indentation resistance. Auxetic behavior is mainly due to the typical geometry of the internal structure. Therefore, it can be achieved by a unique arrangement of inner micro-lattice structure. Through additive technologies such as Selective Laser Melting (SLM), it is possible to manufacture such complex geometry. This bachelor thesis deals with the design of a spatial micro-lattice structure that will exhibit auxetic behavior and can be made by the SLM method. Based on an extensive research on the topic of 2D and 3D auxetic structures, a new type of auxetic structure was designed. The manufacturability was verified by making several samples in different dimensional configurations. Auxeticity and mechanical properties were subsequently tested using a drop test. By evaluating it, it was possible to determine the influence of dimensional parameters on the overall behavior of the structure.
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Design technology for the production of custom advertising article
Konečný, Lukáš ; Dvořáček, Jan (referee) ; Kalivoda, Milan (advisor)
The project worked out in the framework of the Bachelor's study presents a proposal of producing technology of an advertising article in shape of a razor blade made from stainless steel 316L, in jewellery commonly called surgical stainless steel. Expected batch production is 100 pieces. In the thesis is compared technology for the production on a knee-type CNC milling machine with a laser cutting machine. A production drawing of a razor blade is given as a material for manufacture. A part of this project is an economic evaluation and a conclusion of suggested technology.
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