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Rationalization of production to improve roughness of a selected surface of rectilinear hydraulic motors
Urban, Jan ; Píška, Miroslav (referee) ; Sliwková, Petra (advisor)
In this paper, the influence of cutting parameters, machining strategies and material properties on the resulting surface roughness of a selected surface of a groove for a seal on the cover of a straight-line hydraulic motor are investigated. Based on the analysis of the results of the initial experiments of the existing production, specific measures are proposed to rationalize the manufacturing process. The effectiveness of the proposed measures is verified by further experiments carried out on real workpieces under industrial production conditions under the same manufacturing conditions. Subsequently, the results of the methods are compared with each other. The inclusion of a time delay between radial and axial feed during the finishing operation of the grooving had a very positive effect on the surface quality. The surface roughness values not only came within the prescribed tolerance but well below it. The economic evaluation shows that the rationalised production process does not have a noticeable effect on the overall cost of production and hence the results of this thesis are recommended for implementation in practice.
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The Rationalization of Production Part of Injection Pump
Havel, Marian ; Prokop, Jaroslav (referee) ; Osička, Karel (advisor)
This thesis focuses on the rationalization of the production process of plungers and elements of injection pumps in relation to improving the quality of the final products. Today’s technology, which mainly uses single-purpose machines where the production quality markedly depends on the abilities and activities of the operator, will replaced by modern machining centres and CNC machines for grinding all functional parts of the plungers, coupled with modern measuring devices. These production machines with the support of measuring devices will improve the productivity of production and the general quality of the produced components.
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Optimization in conveyer rollers production
Veverka, Štěpán ; Heinl, Zdeněk (referee) ; Rumíšek, Pavel (advisor)
Presented document deals with optimization in conveyer rollers production in accordance with rationalizing project for Transroll – CZ, s.r.o. company. With consideration of available literature from section of technological projection and technology of machining, the industrial process is analyzed with focus on material flow and layout solution of factory shop. Consecutively the options of possible machines allocation are designed, which eliminate some disadvantages of default position. Selection of suitable option, its evaluation and technical-economic evaluation of whole project are also parts in this document.
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Production logistic
Susko, Petr ; Maxa, Jiří (referee) ; Špinka, Jiří (advisor)
This thesis deals with the production logistics, organization of production in the company and its management as well as using software tools to control it. The work begins with a theoretical study of a given topic, which contains a description of the basic goals and tasks of a production logistics, technology design principles, a description of production planning and control . In the last part of theoretical study deals with the application of various software tools to a logistics control an plannig. The second part focuses on the practical concerns of the thesis and includes a complete description and data collected from current production, evaluation and summary. In the third part of the bachelor’s thesis we deal with manufacturing errors, the redeployment and optimization of production processes. In the last part is the overall comparison of current layout and proposed production layout.
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The grinding of valves
Stránský, Michal ; Bumbálek, Bohumil (referee) ; Osička, Karel (advisor)
This diploma thesis deals with grinding of parts of valves. In the first part is theoretically described valve and its manufacturing. Another part focuses on the analysis of existing grinding technology. In last part of this diploma thesis is written about choosing of suitable places for rationalization, design of rationalization and technical-economic evaluation of performed rationalization.
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Production logistic
Susko, Petr ; Maxa, Jiří (referee) ; Špinka, Jiří (advisor)
This thesis deals with the production logistics, organization of production in the company and its management as well as using software tools to control it. The work begins with a theoretical study of a given topic, which contains a description of the basic goals and tasks of a production logistics, technology design principles, a description of production planning and control . In the last part of theoretical study deals with the application of various software tools to a logistics control an plannig. The second part focuses on the practical concerns of the thesis and includes a complete description and data collected from current production, evaluation and summary. In the third part of the bachelor’s thesis we deal with manufacturing errors, the redeployment and optimization of production processes. In the last part is the overall comparison of current layout and proposed production layout.
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The grinding of valves
Stránský, Michal ; Bumbálek, Bohumil (referee) ; Osička, Karel (advisor)
This diploma thesis deals with grinding of parts of valves. In the first part is theoretically described valve and its manufacturing. Another part focuses on the analysis of existing grinding technology. In last part of this diploma thesis is written about choosing of suitable places for rationalization, design of rationalization and technical-economic evaluation of performed rationalization.
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The Rationalization of Production Part of Injection Pump
Havel, Marian ; Prokop, Jaroslav (referee) ; Osička, Karel (advisor)
This thesis focuses on the rationalization of the production process of plungers and elements of injection pumps in relation to improving the quality of the final products. Today’s technology, which mainly uses single-purpose machines where the production quality markedly depends on the abilities and activities of the operator, will replaced by modern machining centres and CNC machines for grinding all functional parts of the plungers, coupled with modern measuring devices. These production machines with the support of measuring devices will improve the productivity of production and the general quality of the produced components.
|
|
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Optimization in conveyer rollers production
Veverka, Štěpán ; Heinl, Zdeněk (referee) ; Rumíšek, Pavel (advisor)
Presented document deals with optimization in conveyer rollers production in accordance with rationalizing project for Transroll – CZ, s.r.o. company. With consideration of available literature from section of technological projection and technology of machining, the industrial process is analyzed with focus on material flow and layout solution of factory shop. Consecutively the options of possible machines allocation are designed, which eliminate some disadvantages of default position. Selection of suitable option, its evaluation and technical-economic evaluation of whole project are also parts in this document.
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