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Statistical Process Control and Reduction of Scrap
Negrová, Stefania ; Blecha, Petr (referee) ; Bednář, Josef (advisor)
The aim of the diploma´s thesis is analysis of the scrap of the chosen process, using the tools of statistical process control and proposal of appropriate containment to reduce the scrap. The thesis describes all seven basic tools of quality and the greatest attention is aimed to Shewart's control charts. One chapter discusses three methods of problem solving in technical practice, while one of the described methods is used in the practical part of the thesis.
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Scrap Analysis in Manufacturing Process
Buriánková, Alena ; Blecha, Petr (referee) ; Bednář, Josef (advisor)
The master’s thesis is focused on the reduction of rejection rate in production of plastic bowls with the use of statistic methods. The theoretical part of this thesis describes among others Statistical Process Control, Process capability and types regulatory diagrams. The basis for the practical part is data collection over a certain period of production, from which the percentage of the rejection rate is evaluated. Experiments and corrective actions are designed to improve the process and thereby reduce scrap.
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Implementation of SPC into the manufacturing process
Simandl, Martin ; Nikodým, Lukáš (referee) ; Bartes, František (advisor)
The diploma thesis focuses on the introduction of statistical process control in selected manufacturing company XYZ. It is divided into a theoretical and a practical part, while the theoretical part deals with theoretical knowledge of SPC methodology and quality management. The content of the practical part is the design and implementation of the measuring and evaluation station, which will be used for statistical control of the SPC process, into the emerging production of chip machining.
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Quality management tools
Zachová, Zuzana ; Levek, Vladimír (referee) ; Novotný, Radovan (advisor)
This bachelor thesis deals with methods, and above all with quality management tools. It consists of four parts. In the first part of the thesis is briefly presented the history of approaches to quality management. In the second part, a basic overview of the seven basic tools for quality control is elaborated and in the case of those tools, which are statistical, the procedure of their construction in Minitab is outlined. In the third part are processed advanced statistical tools with a focus on the analysis of the measurement system. In the fourth, practical part, selected methods of analysis of the measurement system are analyzed by case studies.
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Quality evaluation of the connection of low-voltage control circuit cables
Chabiniok, Pavel ; Prostredník, Daniel (referee) ; Jankových, Róbert (advisor)
This master’s thesis deals with evaluation of quality of the connection of low-voltage control circuit cables, with the emphasis on quality assurance of crimps. An analysis of possible quality control methods, including a map of the crimping process, was created. Further, the thesis includes proposals for improvement of the original system. Furthermore, a proposal of non-destructive inspection system was produced. The conclusion summarizes the knowledge gained in quality control of crimping, including practical recommendations.
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Usage of Statistical Methods to Assure Capability of Production Process
Kuthanová, Dominika ; Baranová, Zuzana (referee) ; Doubravský, Karel (advisor)
The aim of bachelor´s the thesis is to evaluate the quality of production using tools of statistical process control and to propose possible measures leading to its improvement. The thesis uses the following statistical tools: control charts, normality tests and capability indexes. The bachelor´s thesis also clarifies the principle of Six Sigma methodology. The output of the thesis is the proposed application of following tools: target control carts and the Cpm index for statistical process control of the researched company.
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Usage of Statistical Methods to Assure Capability of Production Process
Peroutka, Michal ; Pelánek, David (referee) ; Doubravský, Karel (advisor)
The diploma thesis deals with usage of statistical methods to assure capability of production process. The theoretical part includes the definition of quality management, basic statistical concepts and statistical process control. The practical part presents basic information about the company P & L, spol. s r. o. and analyzes the production process of selected parts. The tools of statistical process control are applied and measures to assure capability of production process are proposed.
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Statistical Process Control
Hudečková, Eva ; Fiala, Alois (referee) ; Koška, Petr (advisor)
The master´s thesis deals with the problem of statistical process control. The theoretical part describes the basic quality tools and new quality tools, as a tool for collecting, recording, classifying, and analyzing data. The knowledge gained from the theoretical part are used to describe processes in the company Heat Transfer Systems s.r.o., analyze sticking points, control plans updating and to statistical process control in the organization.
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Stability of the production process of railway base plates.
Szmek, Tomáš ; Fiala, Alois (referee) ; Koška, Petr (advisor)
The master’s thesis is focused on process monitoring using statistical process control SPC tools. It is designed as a guide for the implementation and use of control charts in the manufacturing process of the base plates, which would ultimately be conducive to improving and stabilizing the process. The theoretical parts are the basic attitudes and practices methodology of SPC, especially classical Shewhart control charts. The next section describes the current status in Strojírny Třinec, a.s. and the manufacturing process of the base plates. Followed by application of control charts for a given quality features and analysis using statistical software. Based on the evaluation are findings and recommendations for long-term monitoring of the defined quality features.
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