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One of the most significant problems encountered in machining is that of burr formation. All edges must be completely defect-free, with generous radius, for operational, safety and aesthetic reasons. The machining operation or CNC grinding process that shapes the component produces burrs and sharp edges. The deburring process is intended to remove these imperfections and produce specific edge profiles...
Hintergrund NOTES („natural orifice transluminal endoscopic surgery“) gewinnt in der Urologie immer mehr an Bedeutung, wofür insbesondere technische Neuerungen verantwortlich sind. Hierzu zählt das HybridKnife®, welches die Technologie einer Hochfrequenz- und Wasserstrahlchirurgie vereint. Ziel der Arbeit war die Etablierung einer transrektalen, flexibel-endoskopischen Retroperitoneoskopie am Schweinemodell...
In this work a laser Doppler velocimetry technique has been implemented in order to evaluate water jet velocity distribution in water-jet and abrasive water-jet cutting plant. The knowledge of the water jet velocity is fundamental in order to determine system efficiency; in particular it allows to determine, in a experimental way, characteristic coefficients of the orifices employed in cutting process...
In this work a set of indexes able to define a suitable "footprint" of a Water jet system has been investigated. A on-line and non-intrusive monitoring and diagnostic system has been designed implementing an algorithm defined on the basis of the proposed indexes.
The problem of the efficiency evaluation of water jet nozzles has been dealt in the present work and a novel Laser Doppler Velocimetry (LDV) technique has been proposed in order to acquire high speed water velocity at the exit of the cutting head nozzles. A standard LDV technique has been implemented for the first experimental trials with the aim of validating the analytical results with directly...
The problem of the efficiency evaluation of water jet nozzles has been dealt in the present work and a novel laser Doppler velocimetry (LDV) technique has been proposed in order to acquire high speed water velocity at the exit of the cutting head nozzles. A standard LDV technique has been implemented for the first experimental trials with the aim of validating the analytical results with directly...
A new water jet tactile display technology is presented in this paper, which use water jet as the pressure stimuli for tactile telepresence. There is an open water jet nozzle connected to pressure water tank at each element of the tactile array, and there is also an electromagnetism valve between the nozzle and the water tank which is used to control the ON/OFF of the water current. When tactile telepresence...
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