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Statistical inspection
Vyškovský, Jaroslav ; Fiala, Alois (referee) ; Pernikář, Jiří (advisor)
This work solving with the statistical inspection verification of big amounts of products imported to Czech Republic. Work it self is designed as general handbook and it will be possible to use it on other products then the model one. This work was elaborated with company which is importing screws for wood industry. We used common standards to define quality requirements of verificated products, and to design statistical inspection plans. The goal of this work is technical and economical evaluation of designed method, which was used on model product.
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Expressing uncertainty of efficiency value
Kňava, Miroslav ; Pernikář, Jiří (referee) ; Koška, Petr (advisor)
The aim of this work is to analyze the methodology for executing examination heat transfer tubes of steam generator by method of eddy currents on EDU, to create the model for the estimate of standard combined uncertainty of efficiency value, quantify the individual components of standard uncertainties, analyse the influence of different components on the expressing of uncertainty, to make the final estimate of standard combined and enlarged uncertainty of efficiency value and as of minor objective to evaluate the suitability of the use of this method .
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Redeployment and verification spindles water supply river armours
Jelínek, Norbert ; Musil, Martin (referee) ; Pernikář, Jiří (advisor)
Solving problems of production and calibration spindles water supply river armours by the help of method SPC. Analysis capability of gauge by the help of methodists MSA-Cg,Cgk. Evaluation capability of machanical abnd digital outside micrometer. Verification limiting deviation of micrometrical screw in among - calibration interval. Attestation capability of machine and of the process. Construction of regulation diagram. Project of new control instruments. Technically-economic evaluation:savings 110 560,00Kč, profitability 764,85%, economic return 0,13 year. Successful application of methodists SPC attested by document about adjustability of the process.
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Quality perfection in trailer manufacture
Vlach, Zdeněk ; Marková, Petra (referee) ; Pernikář, Jiří (advisor)
The diploma work is dealing with solution of concrete problem from the industrial practice. The main aim is to increase the quality in trailer production. The section of state of the art includes the description of selected characteristics about the company AGADOS, analysis of production process including controlling and monitoring activities. The theoretical study introduces processes and methods of planning for continuous improving of quality. The evaluation of monitored results with the support of IS tools was proceeded by construction of recognized divergences by the help of Pareto diagram. After the implementation of corrective proceedings to improve the quality, which was estimated in terms of processing engineering, repeated evaluations have been applied. The effectiveness of proposed proceedings is illustrated by construction of Pareto diagrams, which are presenting the complex examination of changes before and after implementation of corrective proceedings.
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Coordinate measuring machines
Palásek, Vítězslav ; Zachoval, Luboš (referee) ; Zachoval, Luboš (referee) ; Pernikář, Jiří (advisor)
This graduation work is about co-ordinal measuring machines (CMM) with optical reader system and optical CMM. In accordance with submission and in terms of survival well known contactless systems the direction is to make methodology objective classification of rating with granting summary of these systems. The first part contains optical principles for visual scanner in CMM and optical CMM. Ist is described there principle of contactless obtaining steric digital version of measured object with using laser and optical facilities. The second part contains brief makes survey of these contactless systems and their component which are used for co-ordinal measuring. The survey is devided into optical readers, which are put on CMM brake or on mobile measuring brake and on optical CMM, which localize position measuring/sensing head in the space or they read measured object from specific distance – fotogrammetric. Characteristic of offered systems and chart with technical data are mentioned with each maker. The third and fourth part is about submission methodology for objective choice suitable sort of reader, optical CMM in target of characteristic reader system quality. And from this methodology is given the choice of suitable exponent stationary measuring machine with contact and contactless way of reading and their comparison.
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Legislative safeguard metrology engineering running
Horká, Zdeňka ; Marková, Petra (referee) ; Pernikář, Jiří (advisor)
This thesis deals with legislative security scheme of metrology in engineering operation. The introduction includes description of state administration in the area of metrology and the summary of laws and regulations as well as the rights and obligations which result from the documents mentioned above. Practical part is focused on proposal of company regulations for engineering operation.
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Quantification of measurement accuracy of the pressure losses at evaluation of aluminium casting porosity
Velehradský, Petr ; Jelínek, Milan (referee) ; Pernikář, Jiří (advisor)
The diploma thesis deals with a matter of a leak testingo of the Schreiner devices in the company Kovolis Hedvikov a.s. The tested components are the heat exchangers made from alloy of aluminium used for automobiles. Due to the impact of porosity texture created during the components casting there is leaking. The analysis was accomplished to find out the most problematic parts of these components. Subsequently the testing and measuring were performed in order to classify the testing and detect its accuracy. The summary and suggested solutions of how to improve the accuracy of measuring of the aluminium components leaking are presented in the conclusion.
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ANALYZIS OF THE PROCESSING MACHINE CAPABILITY IN BUS PRODUCTION
Gregor, Jaroslav ; Oliva, Zdeněk (referee) ; Pernikář, Jiří (advisor)
The diploma thesis deals with an analysis of the processing machine capability in bus production. The goal is to evaluate the capability of the CNC laser processing machine in conditions of Iveco Czech Republic, Ltd., Vysoke Myto. In the theoretical part, the thesis studies measurements and capability of the processing machine; the practical part describes the present state of production and suggests a solution of the assigned task.
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