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An Experimental Study of the Impact of Passive Forces of Cutting on a Machined Surface
Slaný, Martin ; Janáč, Alexander (referee) ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This dissertation thesis focuses on the evaluation of modern machine tools, especially tools for finishing operations, with which the effect of the passive force components on the machining process is evaluated. The thesis will examine the analysis of creating chips and circumstances that accompany this process and substantially involve the formation of a new surface. The analysis of the process of the recording of the power load of the MT3 tool takes place in the experimental part of the thesis. MT3 is a reaming head intended for finishing holes at high cutting speeds (100-200 m.min-1) with removal of small cross section AD (0.024 mm2) chips. Particular attention is paid to the newly created profile from the surface after machining and evaluation of changes in geometry and loading of the cutting edge, which is significantly reflected in the establishment and the development of passive forces.
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Can the adverse complications of foot drop be prevented by endoprosthesis: design and development of a prototype device
El-Osta, Bassel ; Trč, Tomáš (advisor) ; Douša, Pavel (referee) ; Burget, Filip (referee)
Can the adverse complications of foot drop be prevented by an endoprosthesis: design and development of a prototype device Abstract Foot drop is a very old problem since Jacob from the bible was limping when he was wrestling with the angels. Foot drop occurs very often, and it is a very common condition in trauma, after surgery, and neurological diseases. The aim of this project is to identify an endo-prosthesis and test it bio-mechanically and bio- medically in order to resolve the problem. This endo-prosthesis must improve the quality of life for patients suffering from foot drop due to the injury to the common peroneal nerve. The device that must be created should be small and surgically will be attached to the muscle internally and work as if the muscles and nerve were intact. The device would be tested outside the human body. It is important to throw light on that the device should be made of a material that is accepted by the human body and should have a stiffness that is close to the weight of the foot to ensure a normal motion. The intent of this bio-mechanical device is to help patients suffering from foot drop to restore normal motion. An endo-prosthesis that is implanted in the foot might be the solution to foot drop disease. The endo-prosthesis has a major role to do the opposite movement and...
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An Experimental Study of the Impact of Passive Forces of Cutting on a Machined Surface
Slaný, Martin ; Janáč, Alexander (referee) ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This dissertation thesis focuses on the evaluation of modern machine tools, especially tools for finishing operations, with which the effect of the passive force components on the machining process is evaluated. The thesis will examine the analysis of creating chips and circumstances that accompany this process and substantially involve the formation of a new surface. The analysis of the process of the recording of the power load of the MT3 tool takes place in the experimental part of the thesis. MT3 is a reaming head intended for finishing holes at high cutting speeds (100-200 m.min-1) with removal of small cross section AD (0.024 mm2) chips. Particular attention is paid to the newly created profile from the surface after machining and evaluation of changes in geometry and loading of the cutting edge, which is significantly reflected in the establishment and the development of passive forces.
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An experimental study of the impact of passive forces of cutting on a machined surface
Slaný, Martin ; Píška, Miroslav (advisor)
This dissertation thesis focuses on the evaluation of modern machine tools, especially tools for finishing operations, with which the effect of the passive force components on the machining process is evaluated. The thesis will examine the analysis of creating chips and circumstances that accompany this process and substantially involve the formation of a new surface. The analysis of the process of the recording of the power load of the MT3 tool takes place in the experimental part of the thesis. MT3 is a reaming head intended for finishing holes at high cutting speeds (100-200 m.min-1) with removal of small cross section AD (0.024 mm2) chips. Particular attention is paid to the newly created profile from the surface after machining and evaluation of changes in geometry and loading of the cutting edge, which is significantly reflected in the establishment and the development of passive forces.
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