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Milling of internal threads in Bosch injection unit bodies
Krčál, Petr ; Prokop, Jaroslav (referee) ; Humár, Anton (advisor)
At the beginning of this diploma thesis I describe the production of different types of threads (with special emphasis on the production of internal threads), then I discuss different types of application of abrasion resistant coating by PVD and CVD, I describe their main advantages and disadvantages. Further, this diploma thesis explains particular mechanisms and forms of tool wear on tool with coating. In the second part of this diploma thesis the analysis of the current status of the production of internal threads in the Rail (high-pressure chamber) is made. In the last part I compare six different threads cutters by the use of a scanning electron microscope
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Description of inside and multi-purpose grinding machines
Krčál, Petr ; Opl, Miroslav (referee) ; Blecha, Petr (advisor)
In those bachelor’s thesis there is effected background research and description of inside and universal grinding machines.This thesis contains introduction where you can find history of cutting machines innovative trends for fucture and basic separation this machines. Next chapter describes the most important main parts cutting machines. In next part of thesis own principle grinding as technological operation is described. Theme of main principle of stock removal, main problems and their reduction or remove are spreaded here. Next chapter is devoted one of the most important part of grinding process especially grinding disks. There are introduced the most important properties and characteristics of grinding runner for its use in technical practice. The biggest attention in those baccalaureate work is devoted to grinding machines. In those part there are introduced main requirements for these machines, main principle of their activities and further movement in modernizing, automatization and change from NC controlled machines to CNC machinery including illustrate personal simulation grinding. Follows dividing CNC grinding machines.In part inside grinding machines there is preliminary basic rating and also problems which come on with these grinding machines and their division into grinding machine with revolving workpiece,with dead centre workpiece with planetary movement of grinding runner and nearer description of two of them. The main problem at these grinding machine is high spindle speed at machining, that is why there are also mentioned two basic version of these spindles. About universal grinding machine there is lineation of their activities, using and their constructional design including presentation of concrete grinding machines.At the last part of those work there are mentioned different manufacturers of inside and universal grinding machine including examples of their products, technical parameters of grinding machines and pictorial documentation. Related to the most of the universal grinding machines has special device for grinding inside hole, there isn´t mentioned much producers of inside grinding machines.
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Milling of internal threads in Bosch injection unit bodies
Krčál, Petr ; Prokop, Jaroslav (referee) ; Humár, Anton (advisor)
At the beginning of this diploma thesis I describe the production of different types of threads (with special emphasis on the production of internal threads), then I discuss different types of application of abrasion resistant coating by PVD and CVD, I describe their main advantages and disadvantages. Further, this diploma thesis explains particular mechanisms and forms of tool wear on tool with coating. In the second part of this diploma thesis the analysis of the current status of the production of internal threads in the Rail (high-pressure chamber) is made. In the last part I compare six different threads cutters by the use of a scanning electron microscope
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Description of inside and multi-purpose grinding machines
Krčál, Petr ; Opl, Miroslav (referee) ; Blecha, Petr (advisor)
In those bachelor’s thesis there is effected background research and description of inside and universal grinding machines.This thesis contains introduction where you can find history of cutting machines innovative trends for fucture and basic separation this machines. Next chapter describes the most important main parts cutting machines. In next part of thesis own principle grinding as technological operation is described. Theme of main principle of stock removal, main problems and their reduction or remove are spreaded here. Next chapter is devoted one of the most important part of grinding process especially grinding disks. There are introduced the most important properties and characteristics of grinding runner for its use in technical practice. The biggest attention in those baccalaureate work is devoted to grinding machines. In those part there are introduced main requirements for these machines, main principle of their activities and further movement in modernizing, automatization and change from NC controlled machines to CNC machinery including illustrate personal simulation grinding. Follows dividing CNC grinding machines.In part inside grinding machines there is preliminary basic rating and also problems which come on with these grinding machines and their division into grinding machine with revolving workpiece,with dead centre workpiece with planetary movement of grinding runner and nearer description of two of them. The main problem at these grinding machine is high spindle speed at machining, that is why there are also mentioned two basic version of these spindles. About universal grinding machine there is lineation of their activities, using and their constructional design including presentation of concrete grinding machines.At the last part of those work there are mentioned different manufacturers of inside and universal grinding machine including examples of their products, technical parameters of grinding machines and pictorial documentation. Related to the most of the universal grinding machines has special device for grinding inside hole, there isn´t mentioned much producers of inside grinding machines.
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Ethical aspects of conventional and alternative medicine
KRČÁL, Petr
The Bachelor Thesis deals with an analysis of ethical aspects of conventional and alternative medicine, particularly with ethical dilemmas resulting from application of alternative and scientific medicine and with an insight into possible correspondences and differences between both the treatment methods. The theoretical part contains description of the current problems of the topic, particularly the ethical sources, modern philosophical schools, basic principles of ethical behaviour, explanation of the term alternative medicine and types of alternative treatment methods.
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