|
|
Production Process of Model of Holder Using Additive Technology of Rapid Prototyping
Ivančic, Marek ; Zouhar,, Jan (referee) ; Sedlák, Josef (advisor)
The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
|
|
|
Biomechanical research study of skull plates and implants
Vystrk, Tomáš ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
Cranial implants along with fixators are used to restore the function of the damaged area of the human skull, where due to disease or injury the defect was created. When assessing the suitability of the implant and fixators the mechanical properties are significant. With this the material and shape of implant and fixators are related. The implant must be suitable with human bone tissue and also be able to withstand long-term loading. This paper summarizes the present knowledge regarding the design, manufacture and application of cranial implants. Next the stress-strain analysis of the loaded scull with irregular shaped defect, placed implant and fixation system is provided.
|
|
|
Development of 3D metal printing process parameters for producing of the lattice structure
Jaroš, Jan ; Koutný, Daniel (referee) ; Vrána, Radek (advisor)
Selective laser melting (SLM) in additive technology, which allows production of lattice structures. Lattice structures are very difficult to produce using conventional methods. The main use of lattice structures is in aerospace industry and medicine for bone implants production. In this work influence of processing parameters (laser power, scanning speed) on properties (diameter, surface roughness, porosity) of struts is investigated. The processing parameters selection was based on single tracks test. In the first test, ImageJ was used to determine porosity of struts. In the second test porosity was analyzed with more accurate µCT technology. Both tests used 3D scanning technology to determine dimension accuracy and surface roughness of samples. The measurement results led to the detection of processing parameter „window“ where samles had the best combination of surface roughness and porosity. The best results were achieved with 225-275 W laser power and scanning speed of 1400-2000 mm·s-1.
|
|
|
Design of recoating system for processing of two metal powders using 3D Printing
Guráň, Radoslav ; Němeček, Stanislav (referee) ; Koutný, Daniel (advisor)
The thesis deals with the design, construction and testing of two different metal powder coating equipment, which is able to work with SLM 280HL metal 3D printer. Since the field of multimaterial metal printing by selective laser melting (SLM) has not been significantly investigated yet, an overview of existing patents and possible approaches to the solution has been developed. The device has been successfully designed and a series of tests was carried out defining the issue of applying an improved head that uses a nozzle and an eccentric vibration motor. Based on the experiments performed, the coating parameters of the multimaterial layer of FeAm and 316L materials were defined. A control system for the partial process automation was created for the proposed device. The device was implemented in a printer that demonstrated both the ability to apply a single multimaterial layer of at least 50 m thickness, and the ability to produce a 3D multimaterial component comprised of up to 200 layers and containing material change across all axes.
|
|
|
Testing of parts produced by Bound Metal Deposition technology
Hradil, Antonín ; Vaverka, Ondřej (referee) ; Koutecký, Tomáš (advisor)
Bachelor thesis on the topic Testing of parts produced by Bound Metal Deposition technology. Aim of the work is to obtain mechanical properties of products made by Studio System. We have achieved this by performing tensile test and optical metallography. The results of this thesis are mechanical properties of the tensile test. Re, Rm, E, etc. Another results are microscopic images of microstructure of material. Thanks to this work, we are getting closer to the technology Bound Metal Deposition. We approximate scientifically its mechanical properties and the microstructure of the product surface.
|
|
|
Adjustable Wrist Orthosis
Molinari, Petr ; Gajdoš, Petr (referee) ; Paloušek, David (advisor)
This bachelor‘s thesis is focused on construction of adjustable wrist orthosis using the method of Rapid Prototyping. The first part is devoted to the basic principle of Rapid Prototyping and description of the selected aditive technologies. The common part deals with an overview of upper limb orthotics, division of braces and presentation of some mass-produced models. In the section devoted the construction is described the whole process of designing orthosis.
|
|
|
Vortex tube made by additive technology
Spáčil, Petr ; Šnajdárek, Ladislav (referee) ; Chýlek, Radomír (advisor)
The aim of this bachelor's thesis is designing and 3D printing of a detachable Ranque-Hilsch vortex tube. In the following chapters will be presented basic types of vortex tubes and its usage. Then the thesis deals with parameters, that have an impact on the effectiveness of vortex tube. In the main part, the design of individual parts is described. After 3D printing and assembling, the vortex tube's performance is measured with variations of some parameters.
|
|
|
Analysis of SLM production accuracy of sipes for tire molds
Tomeš, Jan ; Rapant, Martin (referee) ; Koutný, Daniel (advisor)
The first part of the diploma thesis is focused on the analysis and evaluation of the current production of sipes by two SLM devices PXL and M2 Cusing, produced by Phenix Systems and Concept Laser companies. The samples of both machines went through the same manufacturing process and the same process of measurement and evaluation, in order to carry out comparison between individual machines. Geometric accuracy, surface roughness, mechanical properties, and material structure of the samples have been compared. For the sipes it was necessary to create a digital evaluation methodology of geometry. In the second part of the thesis, process parameters are selected on the basis of research and further their influence on surface roughness of manufactured sipes is analyzed.
|
|
|
Use of Additive Technology for the Production Concept of Turbocharger Components
Robl, Jan ; Ňuksa, Petr (referee) ; Sedlák, Josef (advisor)
The thesis deals with possible use of additive technology in heat-resistant aplications. The rapid improvement of additive technology in recent years has brought more advanced materials such as nickel based superalloys, opening new oportunities for the use of this additive technology. First part of the thesis is dedicated to nickel based superalloys processing, precision casting and metal additive manufacturing. Other part analysed the results of mechanical properties and textures of the surface followed by a comprehensive assessment of DMLS technology. Part of the thesis is also the analysis of fracture surfaces on transmission and electron microscopy. Based on acquired nowledge, the conclusion is made about the possible use of DMLS in the future of heat-resistant applications.
|
|
|
The influence of the parameters of stereolithographic 3D printing on the printing time
Kůst, Martin ; Škaroupka, David (referee) ; Zatočilová, Aneta (advisor)
This paper deals with stereolithographic 3D printing (SLA). It describes both upper and lower lighting design and shows the differences between laser light and DLP (Digital Light Processing) projector. Another part is to find the dependence between the time of exposure and the thickness of the layer also known as material profile on the DETAX, gray. So another work and further experiments can be done using this material. These experiments are performed on Way2production's SolFlex650 SLA printer. For ease of use with this printer, parameters affecting print time have been identified and a model is then found to calculate the total print time.
|
guest ::
