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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

Řešení technologie obrábění kulových čepů v podmínkách firmy TRW / Solution of technology of cutting knuckle bolt in conditions of company TRW

Tichánek, Martin January 2008 (has links)
The Thesis deals with the increase in efficiency of the cutting process. The current state analysis of the knuckle bolt cutting. The choice of the alter-natives of the cutting tips and the iron chip former. The evaluation of the iron chip forming. The change of the path of the finishing cutting tip. Time loss when cutting bolts.
162

Technologie CNC výroby součástí z hliníkových slitin / Technology of CNC production of aluminium alloys parts

Věrný, Luděk January 2011 (has links)
This diploma thesis is elaborated on the specific assignment of AB Komponenty Ltd. The core of this thesis features the technology of manufacturing of component BASE CROSSBAR of aluminium alloy EN AW 2017 on the vertical machining center. CNC control program for the suggested technology is developed in the CAM software PowerMill 2010th. To complete the work it also includes a brief introduction to the issues and analysis of aluminum, aluminum alloys and coatings. From the perspective of the practice is probably the most beneficial and interesting final technical economic evaluation of selected solution of the given problem. The suggested technology can be a significant saving in production costs.
163

Konstrukce malého CNC soustruhu / Design of small CNC turning machine

Podloucký, Milan January 2012 (has links)
The aim of this master thesis is construction a small CNC lathe ideal for small series of mostly minor workpieces or for learning needs. In the first part of the work is carried out general literature search containing turning technology, tools for turning and the allocation of turning machines. There is also retrieval of small lathes located not only in our market. Based on research are selected technical parameters of the machine and carried out construction calculations. Also included is a 3D model of the entire assembly and assembly drawings of machine nodes.
164

Návrh technologie součásti "kryt vstřikovače" v podmínkách malé strojírenské firmy / Component technology design "injector cover" in condition of a small firm

Hampl, Petr January 2012 (has links)
Processing completely producting technological documentation for production part “INJECTOR COVER” for firm BM SERVICE (formerly ČKD Hradec Králové), including time schedule production of parts (parts which past welding and machining create demanded component part) and calculation production costs. Solving production process is concepted in two variation (actual and forecast study) for machines which are sorted from existing machinery and from now proposed machines. Estimation is designed for firm conditions introducing to the production with view for qualifications of workers, convention in firm and equipment.
165

Technologie výroby zápustky / Technology production of die

Kubášek, Pavel January 2013 (has links)
The aim of the master´s thesis is to adjust the technology of machining of a die on the CNC lathe so that the total time for the production of a die could be reduced significantly and in this way also the production costs. The analyse of the technology of the machining of the inner part of the die is carried out and a change in the machining of this part is suggested. The new technology is elaborated in two variants when the CAD/CAM system is used for the creation of a programme in a variant and the machining cycles in the other. The technical and economical evaluation is performed at the end of the thesis.
166

Analýza minutové sazby CNC strojů / Analysis of the minute cost rate for CNC machines

Kubiš, Richard January 2013 (has links)
This master’s thesis is focused on analysis of the minute cost rate for CNC machines. It describes cost inputs and a way of including them in the minute cost rate. Further describes creating of mathematical model, minute rates for entire CNC machine and possibilities of using of the minute rate for optimalisation. It points out that no general calculation method is existing and that there are problems with creating certain minute rate and need of individal approach.
167

Počítačem řízená frézka / Milling machine

Homola, Stanislav January 2015 (has links)
This goal of the diploma thesis is to design, to construct and write control program for CNC milling machine designed for machining aluminum, wood and plastic. Entire structure of machine is designed and made of steel. The main table consists of an aluminum plate and aluminum structural profiles. Spindle of milling machine is a high speed motor from ATAS a.s. company. Milling machine is controlled by the program made in TwinCAT environment from Beckhoff Automation GmbH & Co. KG.
168

Možnosti systému Sinumerik při programování rotační strojní součásti / Sinumerik tools for programming of rotational machine part

Slavík, Daniel January 2014 (has links)
This diploma thesis deals with a manufacture of rotating mechanical component on CNC lathe machine with Sinumerik control system. At first the chosen component is briefly described and then NC program is created in Sinutrain Operate 4.5 system. Afterwards the program is verified by simulation. Within the diploma thesis a technological documentation is elaborated that contains a new technological course of manufacture and a manufacture drawing of the component. The final part of this thesis is focused on technical-economic evaluation of newly designed manufacture with verification of cutting conditions and required output of the CNC machine. The outcome of the thesis defines an hour rate of CNC lathe and price of component that regards to newly presented manufacture.
169

Systém Sinumerik při synchronním programování CNC obráběcích strojů / Sinumerik tools for synchronous programming of CNC machines

Toman, Martin January 2015 (has links)
This thesis deals with advanced programming of CNC milling machines in Sinumerik 840D powerline control system. Mostly it is aimed on issues of synchronized actions. These actions can adaptively react on progress of milling process regarding to signal detection from the machine and execute specific action. In the introduction of the thesis there are briefly described basic issues and fundamentals of CNC machines and control systems programming. The problematic regarding the programming of synchronized actions is also described. The examples with evaluation of their function are created in the practical part of thesis.
170

Zefektivnění výroby držáku jehelní tyče / Improvement of Manufacturing Efficiency of Needle Bar Holder

Paděra, Radek January 2016 (has links)
This diploma thesis deals with the manufacturing of the needle bar holder for the company MINERVA BOSKOVICE, a.s. to propose the efficient production. The first part of diploma thesis is dedicated to the analysis of the technologies used for manufacturing the component. The second part of the thesis is focused on the analysis of the component and its current production. The third part suggests a design for a manufacturing process innovation containing the description of a new machine used for manufacturing, tool selection, technological process and mechanical calculations. The last part evaluates the current and a newly designed production and makes a comparison between the two ways.

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