|
|
Technological, economical and ecological aspects of dry machining
Vostřel, Josef ; Csölle Putzová, Ildikó (referee) ; Píška, Miroslav (advisor)
Using of process liquids improves the procedure and results of machining, on the other hand, increases costs and raises some ecological and hygienic issues. In the work there is gradually analyzed mechanism of chip formation, progress and distribution of heat and thermal fields as well as economic and ecological aspects of dry machining and influence of dry machining on durability of tools. In the experimental part there are evaluated data which were measured during the drilling of cylindrical workpiece with regards to progress of workpiece thermal fields while using various kind of tool coating. In the final part there are stated recommendations for practice.
|
|
|
Analysis of chip forming mechanism with a high-speed digital camera
Tichý, Vojtěch ; Sliwková, Petra (referee) ; Polzer, Aleš (advisor)
This thesis covers matters related to high-speed digital cameras and their usage in various spheres of human activities, mainly in research of chip forming. Thesis summarises important knowledge needed for creation of high-speed recordings and choice of suitable lenses. Focus is taken on creation of high-speed recordings of chip forming process in turning operation outside grooving by using of different types of chipformers. Main goal is to verify its functionality in specific value range of feed per revolution.
|
|
|
Morphology of defects and wear of coated cutting tools
Forejt, Miloslav ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
The thesis focuses on the morphology of defects and cause of wear in coat cutting tools, the description of the chip formation and its effects on the machined area. The experiment drala with the description of the chip form in connection with the cutting properties, type of tools, wear in removable parting cutting tips and the comparison of cutting tips from two leading manufacturers.
|
|
|
Analysis of chip forming mechanism with a high-speed digital camera
Frňka, Václav ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
This thesis is focused on possibilities of high-speed digital cameras and their use in different fields of industry. It describes the mechanism of chip forming in orthogonal turning. Subsequently experiments focused on comparison and select the right lens and method of illumination are implemented. These findings are then used in obtaining the record of chip forming by using high-speed digital camera. Key words
|
|
|
Analysis of chip forming mechanism with a high-speed digital camera
Kopřiva, Antonín ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
The aim of the diploma thesis is to present the main theory concerning high-speed cameras, their usefullness in industry and to present the cameras available at the market. A few experiments have been done focused on the right choice of an objective, lighting of the scene or setting of the cameras. A special equipment has been invented for a better process of measuring followed by experiment aimed at boring a cutter in materials chosen beforehand. The speed and the acceleration of the cutter was ana-lyzed by means of MotionMeasure software in another experiment.
|
|
|
Efficiency improvement proposal of machining specific components of pneumatic cylinders
Židlický, Ondřej ; Chladil, Josef (referee) ; Sedlák, Josef (advisor)
This Master thesis aims to increase the effectivity of the machining of pneumatic cylinders specific components. In the first chapter, the concurrent approach to the manufacture of corrosion resistant austenitic piston rod. This approach consists of the technological procedure, the analysis of the cutting tools used in the process and the cutting conditions. The machining process deals with low durability of cutting tools and the necessity of continual supervision by the operator. Therefore, an alternate design of cutting tools and cutting conditions is suggested in the next chapter. The new design has been tested in manufacture process. In the last chapter, the concurrent and the innovative approach are compared. By choosing the proper cutting tools and cutting conditions it was managed to increase the durability of cutting tools and to increase the effectivity of the whole manufacture process.
|
|
| |
|
|
Efficiency improvement proposal of machining specific components of pneumatic cylinders
Židlický, Ondřej ; Chladil, Josef (referee) ; Sedlák, Josef (advisor)
This Master thesis aims to increase the effectivity of the machining of pneumatic cylinders specific components. In the first chapter, the concurrent approach to the manufacture of corrosion resistant austenitic piston rod. This approach consists of the technological procedure, the analysis of the cutting tools used in the process and the cutting conditions. The machining process deals with low durability of cutting tools and the necessity of continual supervision by the operator. Therefore, an alternate design of cutting tools and cutting conditions is suggested in the next chapter. The new design has been tested in manufacture process. In the last chapter, the concurrent and the innovative approach are compared. By choosing the proper cutting tools and cutting conditions it was managed to increase the durability of cutting tools and to increase the effectivity of the whole manufacture process.
|
|
|
Analysis of chip forming mechanism with a high-speed digital camera
Tichý, Vojtěch ; Sliwková, Petra (referee) ; Polzer, Aleš (advisor)
This thesis covers matters related to high-speed digital cameras and their usage in various spheres of human activities, mainly in research of chip forming. Thesis summarises important knowledge needed for creation of high-speed recordings and choice of suitable lenses. Focus is taken on creation of high-speed recordings of chip forming process in turning operation outside grooving by using of different types of chipformers. Main goal is to verify its functionality in specific value range of feed per revolution.
|
|
|
Analysis of chip forming mechanism with a high-speed digital camera
Kopřiva, Antonín ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
The aim of the diploma thesis is to present the main theory concerning high-speed cameras, their usefullness in industry and to present the cameras available at the market. A few experiments have been done focused on the right choice of an objective, lighting of the scene or setting of the cameras. A special equipment has been invented for a better process of measuring followed by experiment aimed at boring a cutter in materials chosen beforehand. The speed and the acceleration of the cutter was ana-lyzed by means of MotionMeasure software in another experiment.
|
guest ::
