|
|
Manufacturing processes of components with a minimum number of tools
Zábojník, Zdeněk ; Drbal, Martin (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis focuses on manufacturing components with a minimal number of tools on a CNC lathe. To demonstrate the production of components with a minimal number of tools, manufacturing procedures for two components, A and B, were designed. Component A is a typical component of simple shape that can be manufactured with a low number of tools. Component B is more complex in shape, and two production variants were proposed for it: one with a higher number of tools and one with a reduced number of tools. For both components were were selected tools, proposed manufacturing procedures and time calculations were carried out. In conclusion, a technical – economic evaluation and comparison of both variants for component B were conducted.
|
|
|
Motorcycle engine cylinder repair
Pinďák, Ivo ; Drbal, Martin (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis deals with the technology of a cylinder reboring. The working principle of the internal combustion engine and the wear that appears by its use is described first. The repair options of a concrete wear are stated next. The chosen concrete situation of the repair process includes TPP data and the final evaluation.
|
|
|
3D printing of a non-dismantling assembly
Halíř, Jan ; Drbal, Martin (referee) ; Kalivoda, Milan (advisor)
The bachelor's thesis deals with 3D printing of prototype non-disassemble assemblies. In the theoretical part, the individual most used printing technologies, the types of plastic and metal materials used, printers, 3D scanners, and their use in medicine, construction and engineering was described. In the practical part, FDM technology was used to print the ball joint, the french key, and the rolling bearing, the functionality of which were tested. In the last part, the results of the prints were evaluated based on the selected parameters and material about their functionality.
|
|
|
Evaluation of the machinability of material produced by additive manufacturing
Bílek, Richard ; Drbal, Martin (referee) ; Kolomý, Štěpán (advisor)
This bachelor thesis evaluates the machinability of high strength maraging steel M300, which is produced in three types of samples. Two samples were additively manufactured by Selective Laser Melting, one of which was subsequently heat treated. The third sample was produced by conventional rolling. Testing was carried out by milling under different cutting conditions. In the practical part the resulting chips were taken and hardness of individual samples, then the individual cutting forces during machining, surface roughness and the flank wear were measured. The measured data and chips morphology were further analysed and evaluated. The output of the work is a recommendation of the appropriate cutting speed for machining the additively manufacturing maraging steel M300.
|
|
| |
|
|
Wear analysis of replaceable inserts in parting of structural steels
Drbal, Martin ; Vítek, Jiří (referee) ; Sedlák, Josef (advisor)
This thesis deals with the analysis of wear of replaceable cutting inserts in turning technology. For the experiment three variants of replaceable cutting inserts were used, all from the manufacturer Dormer Pramet s.r.o. These cutting inserts were used for the successive lapping of two different materials. These were bearing steel ČSN 14 109 and stainless steel ČSN 17 349. The thesis contains a theoretical part which is devoted to turning technology and wear theory. The experimental part describes the cutting test procedure, measurements and analysis of the data obtained. At the end of this thesis, additional analyses are performed to reveal the reasons for the variability of some results.
|
|
| |
guest ::
RSS feed.