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Sinumerik tools for programming of CNC machines
Kulenda, Martin ; Sámelová, Vendula (referee) ; Polzer, Aleš (advisor)
The master’s thesis incorporates the control system Sinumerik 840D to the most widely used control systems of CNC machine tools. In the first thesis part are analyzed the NC programming methodics, which are relative only to the control system Sinumerik 840D and an essentials necessary to understand the issue in the area of CNC machine tools. Next part of the thesis includes design of the technology and processing of the NC program for machined component (gearbox cover). The NC program is made by ShopMill that is focused on a workshop area. During the program creation is combined a ShopMill and parametric programming, with using of a conditional jump instructions and repetitions. The final part of the thesis includes verification of the selected component production process by simulation and technical-economic evaluation of the designed technology.
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Machining of hard-to-machine materials
Varhaník, Matúš ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
General perspective of this diploma thesis was aimed at machining of hard-to-machine materials. Theoretical part contains division and specification of these types of materials. Ways of classification and evaluation were also listed. Causes of worsened machinability were defined with the design of possible technological solutions, which eliminates these features. The main target of experimental part was turning nickel-based superalloy Inconel® 718 with the purpose of increase process productivity. Knowledge about appropriate types of cutting tool material and his coating were necessary for process optimization. It was achieved by replacing reference cutting tool material (coated carbide inserts) with SiAlON ceramic. Cutting tool edge was tested with an intention to discover appropriate deal between tool life and volume of material removed. Measured cutting forces, generated by machining of reference and optimize technology, were processed by using simulation software. Total deformation of workpiece material was statistically evaluated. The conclusion of diploma thesis is technical-economic evaluation of both options.
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Modern manufacturing trends in chip machining - milling and micromachining
Tkadlec, Jiří ; Trčka, Tomáš (referee) ; Polzer, Aleš (advisor)
The thesis is focused on the research on micro-milling with the aim to specify the latest findings and trends in milling and micro-milling. The introduction consists of the specification of micro-milling and its comparison with conventional milling. The main goal of the thesis is to interpret modern trends in micro-milling technology, such as machine modernization, advanced machining strategies and the latest CAD/CAM software. The second part deals with the influence of cutting parameters on the overall workpiece quality. The final part is devoted to the application and use of micro-milling technology.
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Modular outputs from exhaust canals
Dostoupil, Jiří ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
The project aims to design the ideal, fully functional version of a modular outlet for the ABB company, residing in Brno, Vídeňská street. After designing the modular outlet, I will proceed to draw up bills of materials for individual segments. A bill of materials will be drawn up based on previous considerations and corporate conventions. Furthermore, I prepared the grandwork for an SAP configurator and I also established the technological procedure in accordance with the machines used in the ABB company.
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Application of the SinuTrain 4.93 software in milling
Bartuněk, Martin ; Osička, Karel (referee) ; Polzer, Aleš (advisor)
This diploma thesis is focused on the design and preparation of the production of a single front mountain bike chainring, using computer software SinuTrain 4.93. The work has several parts. The first part discusses the possibilities of NC programming and measurement. The next part deals with the design of a chainring, material selection and strength analysis. In the third part of the work, the technological conditions of milling are proposed and the machine is chosen. Next step is creation of NC program including inprocess measurement by workpiece probe and design of postprocess measurement by optical system SOL165. Finally, the work outputs obtained in the form of SinuTrain software simulation are evaluated.
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Measurement of surface temperatures in mechanical engineering
Stránský, Marek ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
This work deals with contact and non-contact methods of surface temperature measurement. The work contains a list and formulations of basic terms and laws of thermodynamics. Furthermore, the work deals with the description and comparison of the properties and use of certain devices for contact and non-contact surface temperature measurement. The experimental part is focused on dependence of the turning speed on the turning knife thermal stress. Subsurface thermocouples, surface thermocouples and thermovision were used for the temperature detection. The subsurface temperatures were afterwards used (as data inputs) for the inverse calculation of surface temperatures. All results obtained were then compared to each other.
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Superhard cutting materials and theirs effective use
Martincová, Zdeňka ; Polzer, Aleš (referee) ; Humár, Anton (advisor)
Diploma thesis is intended on a polycrystalic diamond and a pocrystalic cubic boron nitride from the standpoint of their description, physical, mechanical and cutting properties, use and contemporary trends of development at renowned producers of tools and tool materials. The aim of the work was a complex working of conditions (type of cutting material, cutting conditions), which are recommended by choice producers for the effective turning applications their kind of superhard tool materials.
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On the digitizing and modeling of real surfaces for machining
Šnejdar, Martin ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
This bachelor thesis deals with the procedures of the digitizing and modeling of real surfaces for machining. The work includes technological procedures and individual phases of the process leading to acquisition of resultant surface. The aim of this work is familiar with the procedures and phases in reverse engineering, which is demonstrated on a particular example using the Mathematica software.
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Design of machining technology for production of the camera base
Trčka, Vojtěch ; Polzer, Aleš (referee) ; Sedlák, Josef (advisor)
This thesis deals with streamlining of the process of machining parts Basis of camera in cooperation with PEVOT Products Ltd. The first part focuses on the analysis of existing machining technology in terms of technology, as well as an analysis of time consumed for assessing the effectiveness of the current machining process. The second part of the thesis focuses on the design of innovative technology machining of components and design postprocessor for manufacturing equipment VMC ZPS 560. In conclusion, both variants of production are evaluated. They developed the analyses of time consumed for the production of components and production costs.
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Technical preparation for the production of label carriers and RFID inlays
Blažek, David ; Sliwková, Petra (referee) ; Polzer, Aleš (advisor)
This bachelor thesis deals with the development and production of end effectors for the transmission of labels and RFID inlays using robots. The first part of it describes the RFID technology, robots and their end effectors, then compares the materials for the design of the end effector and its subsequent production. Then follows the preparation of a practical implementation, where the analyses examining the channels inside the effector are described. Furthermore, this work describes the testing of suction cups, production control by graphical simulation, production of individual prototypes of end effectors and their testing.
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