National Repository of Grey Literature 516 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Suggestion for rationalization of injection mould part production
Kamenická, Eva ; Kalivoda, Milan (referee) ; Sedlák, Josef (advisor)
The diploma thesis deals with suggestion for rationalization of production of an injection mould cavity plate and of a part responsible for cooling of the final plastic product. The main objective is to reduce the production time while meeting the high requirements for dimensional and geometric accuracy and surface integrity of the manufactured parts. The thesis starts with a theoretical analysis of the production of mould parts. This is followed by an analysis of the initial state of production, which consists of the characteristics of the previously mentionned manufactured parts, the available production means and a description of the original technological process. The experimental part of the thesis explains the procedures and justifies the choices made in the creation of new programmes within the CAM software Cimatron. Several possible variations of tools and cutting parameters have been experimentally tested and their final choice is justified in the thesis. The output of the thesis is a new manufacturing process for the production of both components, which has been applied in practice and evaluated on the basis of the results of testing the quality of the components and the plastic product itself. In the conclusion of the thesis can be found an evaluation of the output of the thesis and a time comparison of the previous process with the new suggestion. All experiments and measurements, including the production of the components themselves, were carried out in the toolroom of ITW PRONOVIA, s.r.o. in Veľká Bíteš, which is also the creator of the topic of this thesis.
Use of water jet technology in a company
Faltus, Tomáš ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This thesis focuses on water jet technology. In the theoretical part of the thesis, the principle and classification of this technology, the quality of the cut surfaces after water jet cutting, the types of bevels, and the equipment needed for this technology are described and analyzed. It also describes the use of an abrasive water jet in machining and summarizes the advantages and disadvantages of this technology. Additionally, the thesis presents the machinery of the company with which the author of the diploma thesis worked, as well as its production range. The practical part of the work is devoted to the experiment, which consists in selecting a component for the production of samples using two abrasive nozzles, with subsequent assessment of the quality of the machined surfaces in relation to the size of the diameter of the abrasive nozzles as well as in relation to the materials and their thickness. Two materials of two different thicknesses were used for the samples. The quality of the machined surfaces was measured using two roughness meters. The average arithmetic deviation of the profile Ra and the largest height of the profile Rz were measured. At the end of the thesis, the deflection of the beam is measured using a microscope, and the consumption and the price of the abrasive for individual sample components were also calculated.
Design of production technology for a bearing pin
Bocek, Bogdan ; Kalivoda, Milan (referee) ; Sliwková, Petra (advisor)
The bachelor's thesis deals with the production of a rotary component – a bearing pin. First, the component itself, its dimensions and material are solved, and then a suitable semi-finished product is selected. The research focuses on the production technologies used. In the next part, the production technology of the bearing pin is proposed. The technological process consists of selected production machines and tools, production process and production control of component, including gauges used.
Rationalisation of electrospark machining
Janhuba, Tomáš ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
The diploma thesis deals with rationalization of EDM in the Schaeffler plant. The introductory part discuss about this type of machining, while its main purpose is the explanation of material removel process and conditions that the process must meet. It’s a summary of information that needs to be known before implementation of rationalization. The following part of the work describes an initial state of electroerosive workshop. It explains operation of the workshop or what machines are used there. In this part are also written the problems that the workshop have. After that there is part which is focused on the suggestion of solution and testing of that suggestions. The conclusions of that and whether the processess were racionalized are summarized in the technical-economic evaluation chapter and in conclusion chapter.
Analysis and use of wire cutting technology
Patočka, Josef ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
The diploma thesis focuses on the topic of electroerosive machining with greater emphasis on wire cutting technique. The first part clearly describes the principle of electroerosive discharge and its subsequent effects that cause material removal in the given working conditions. This includes the individual methods of electroerosion and the individual accessories that aid the process. The second part is a theoretical analysis of the cutting process using a wire electrode. It describes the machining method, machining strategy and a complete overview of the accessories that accompany the cutting process. The third part of the thesis includes a practical demonstration of the production of a typical representative for wire cutting and then there is evaluation from an economic point of view. Furthermore, there is clear analysis of the surface quality and the final evaluation of the condition of the component.
Machining of components for hydraulics
Piroš, Viktor ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
The main motivation of this final thesis is the draft and verification of the interchangeability of grinding technology for a more efficient machining method, namely the technology of precise turning. The aim is to reduce the production costs of one of the components of the hydraulic assembly. The introductory chapter is devoted to the analysis of the manufactured component and its application, the analysis of the current manufacturing process and the justification of the proposed interchangeability. The subsequent theoretical part is designed so that the summarized knowledge can be used in the practical part. Its content is the design of the machine tool, cutting tools, cutting and process conditions, the method of clamping the semi-finished product, the machining cycle and the time standard. At the end of the practical part there is a technical and economic evaluation of the precision turning process, focusing on the quality of the machined surface, dimensional stability, roundness stability and evaluation of time and cost savings. The conclusion of the thesis is a brief summary of the findings and results of the proposed process and its subsequent implementation.
Production design of a component for aerospace industry
Kunst, Ondřej ; Kupčák, Radim (referee) ; Kalivoda, Milan (advisor)
Master's thesis deals with the design of the production of a component from the aviation industry. The first part contains an analysis of the solved part and its production variant. The second part is devoted to the theoretical analysis of the operations that were used for the production of the given part. The third part deals with the design of production technology. Here, the choice of suitable semi-finished product, CNC machines and cutting tools, the creation of a production procedure and the compilation of NC programs are solved. At the end of the thesis, a technical-economic evaluation is prepared.
Production of a stamp for leather using 3D printing
Vrána, Pavel ; Kalivoda, Milan (referee) ; Zemčík, Oskar (advisor)
The thesis focuses on the possibilities of using 3D printing technology for the production of leather stamps and describes the influences affecting the stamping process, such as the amount of water contained, the hardness of individual areas of the leather or the effect of the thickness of the leather. In order to describe the behaviour of the leather and the stamp during the embossing process on a hydraulic press, an experiment was designed to determine regression curves describing the skin deformation area and the stamp buckling area. The individual curves of stamps made from materials designed for FDM and DLP printing were compared with conventionally manufactured brass stamps. By comparing the curves, the suitability of the material for embossing was determined. PLA and Resin - Basic materials achieve the required parameters and can be used. The use of 3D printing technology opens up the possibility of producing both large and highly detailed stampings, at a significant reduction in product cost.
Application of GibbsCAM software for machining
Gerbel, Jakub ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
The main subject of this thesis is the application of GibbsCAM software in machining. In this thesis, a system analysis of the problem solved is carried out, especially concerning CAD/CAM systems, machining of deep pocket corners and the distribution of touch probes. From a practical point of view, the work is realized with the company JHV - GROUP s.r.o. The goal of the work is to design the actual component and create a 3D model in the CAD system CREO Parametric. Programming of its production with application of in-process measurement was performed in GibbsCAM software. The proposed procedure is verified in Vericut software. Subsequently, the production of the part is realized on a selected CNC machine tool and then the measurement on a 3D coordinate measuring machine. The application of in-process measurement on the selected CNC machine with a FANUC control system, is realized by Renishaw Inspection Plus measurement cycles. The obtained results are evaluated and discussed in the final chapter. From the results drawn, recommendations and suggestions for the industrial enterprise are made.
Production process for a replica of a historic firearm
Čech, Jakub ; Chladil, Josef (referee) ; Kalivoda, Milan (advisor)
This thesis deals with the production of a prototype pistol with a wheel mechanism. In the theoretical part the history is described together with the terminology focused on firearms up to the 17th century. This is followed by a demonstration of the design of the gun in the software version and a demonstration of the machines that were used for the production of the prototype. The practical part describes the production process of some components needed to make the pistol mechanism, together with the overall evaluation of the final product.

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See also: similar author names
1 Kalivoda, Maroš
1 Kalivoda, Michal
2 Kalivoda, Miroslav
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