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Design and realization of CO2 laser with power up to 100W
Šrenk, Jakub ; Dvořák, Jaromír (referee) ; Slaný, Martin (advisor)
This work is focused on the problematics of small CO2 lasers and their possible use for commercial production. The first part describes devices available on the market and evaluation of their parameters. The practical part specifies the parameters that arise from the potential use of technology. Based on these parameters, design of the machine and its complete mechanical design are elaborated. Furthermore, the experimental part deals with the design of structural components, control system, electrical systems and in general a complex technical-technological solution of the equipment, including economic evaluation of the design. Part of the work is also the construction of the machine itself, including activation, adjustment and debugging for the considered production. The constructed machine was subject to testing to ensure required quality of production.
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Laser micromachining
Láznička, Pavel ; Daněk, Ladislav (referee) ; Mrňa, Libor (advisor)
This thesis deals with lasers, their general theory and application. Then a theoretical part describes laser micromachining and engraving. Experimental part of thesis deals with several experiments performed by powered fibre laser which is not primarily intended for the field of micromachining. Experiments were mainly evaluated by several types of microscopes where the amount of removed material was appraised. By particular experiments removed material was in accordance with used working parameters of laser and a significant role plays machining material. It emerges from the experiments that for the field of laser micromachining and engraving shorter pulses are more suitable (minimal pulse duration was 1 ms in experiment) and it is connected even with a way of removing material. Applied powered laser can be used for micromachining in specific fields of production.
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Design of an engraving LED laser
Kasík, Martin ; Sliwková, Petra (referee) ; Dvořáková, Jana (advisor)
This thesis is focused on the search of unconventional machining methods, especially on the technology of laser beam machining. It deals with the area of laser cutting and engraving and examines the influence of individual technological parameters on the given process. Furthermore, there is proposal of design of hobby LED engraving machine, its supporting structure, HW and other electronic components. The prototype of the device is physically assembled and its functionality is verified in the form of several engraving tests of raster and vector formats of graphic materials, and some several shape cuts are made also. The technical evaluation of the assembled equipment, evaluation of tests performed and cost calculation is part of the work too.
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Project of Engraving device for graphics creation
Hložek, Vojtěch ; Richter, Miloslav (referee) ; Horák, Karel (advisor)
The objective of this master's thesis is to design and implement a system which would be able to transfer a picture (either a bitmap or a vector image) on a foundational material. The main part of the apparatus consists of a plotter controlled by two stepping motors. The engraving itself is provided by a marker mounted to a movable part of engraving head. There was a PCB created for controlling the entire system. It contains power supplies, a microcontroller and motor and engraving head controlling circuits. The second part of the thesis shows a microcontroller program and a user interface in a PC. The image is trasfered from the PC into the microcontroller where it is processed and, based on the controlling program, engraved to the material.
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Design and manufacture of an engraving LED laser
Adam, Tomáš ; Slaný, Martin (referee) ; Dvořák, Jaromír (advisor)
The thesis deals with the evaluation of achieved parameters of unconventional machining methods and their current use in practice. In addition, the design and construction of the prototype of the laser engraving device is carried out. Several tests are performed on the device and are compared with similar devices after evaluation. The entire construction is designed so that no special equipment is needed and the construction could be done in each workshop.
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Design and manufacture of an engraving LED laser
Vodička, Jiří ; Slaný, Martin (referee) ; Dvořák, Jaromír (advisor)
The thesis deals with the current state, principle and use of unconventional machining technologies. It also includes the design and assembly of a engraving laser prototype, with an emphasis on simplicity and functionality. It was an effort to acquaint not only those interested in this activity with the engraving procedure, but also to make the prototype and its use accessible to everyone with a basic awareness of CNC control. Upon completion, a test was performed on the basic materials and the resulting engraving quality is evaluated in the thesis.
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Design of Technology for Cutting and Engraving of Rotary Semi-finished Products for the CO2 Laser
Šrenk, Vojtěch ; Dvořák, Jaromír (referee) ; Slaný, Martin (advisor)
The thesis deals with the design and implementation of a rotary axis in a CO2 laser cutter for the ability to cut and engrave rotary workpieces. The thesis is focused on identifying several similar available known competitive solutions, for which the pros and cons were evaluated. Based on the findings, suitable parameters were selected to achieve maximum versatility of the proposed system. Versatility in this respect is related to the ability to cut and engrave the widest possible range of rotary workpieces. The thesis also describes the design solution, axis assembly procedure, production design and production of individual components using 3D printing technology (FFF), selection of suitable standardized components and the actual implementation. The conclusions then focus on the proposed solution from an economic and technical point of view.
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3D engraving milling machine
Bosák, Daniel ; Vetiška, Jan (referee) ; Bradáč, František (advisor)
This thesis deals with rebuilding of a laboratory manipulator to 3D engraving machine. First part of the thesis describes the engraving technology and lists the most common types of engraving machines. Next, the initial state of the machine is analysed and modifications of mechanical and electrical equipment are suggested. Design, realisation of a control system and human machine interface are described. The Beckhoff TwinCAT programming environment is used. The last part of the thesis deals with practical realisation and commissioning of the machine. The results of the thesis can be used as an addition for lessons of Automation of Production Machines.
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Production of the lightsaber handle
Bršťák, Ondřej ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
This bachelor’s thesis focuses on the design and construction of a lightsaber. Film and industrial variants have been discussed in order to create authorial designs. Out of those, one variant has been selected for further processing. Engraving has been added to the main component. This thesis describes in further detail the process of manufacture and the machines used for it with the calculation of cutting parameters. Three NC programs have been developed and implemented via the selected methods and tools. The documentation and the estimated cost of the process in context of the industrial versions have been included.
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Design for Manufacturing of an Assistant Facility for CO2 Laser
Okřina, Lukáš ; Kalivoda, Milan (referee) ; Slaný, Martin (advisor)
The main point of this thesis is a design of an assistant facility for low power CO2 lasers with a focus on a manufacturing process of the supporting metallic parts. The theoretical part of the thesis summarises the general subject-matter of CO2 laser technology, their types and industry utilisation. The thesis includes a review of main characteristics of the available assistant facilities. Main task is to design a construction of a new facility with the consecutive technological manufacturing process. The next part of this design is technical and economic evaluation in connection with mass production.
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