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Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 6 z 6
Smazalová, Eva , Houdková-Šimůnková, Šárka
Potenciál snímání EA při hodnocení indentační lomové houževnatosti.

In this study, an attempt is made to characterize the brittleness of the material by crack formation with the Vickers indenter. To assess the critical load, the sensor of AE signal was used. After preliminary tests on a silica glass, the methodology was applied to HVOF&#x...

Moskal, Denys , Martan, Jiří , Kučera, Martin , Houdková-Šimůnková, Šárka , Kromer, Robin
Pikosekundové laserové čištění povrchu AM1 superslitiny

Laser scanning processing of nickel-based superalloy AM1 surfaces by ultra-short pulses (10 ps) is introduced as a cleaning and deoxidation postprocess. The laser cleaning is investigated with two-directional surface scanning by a laser beam with several frequencies of pulse generation. The ...

Vostřák, Marek , Hruška, Matěj , Houdková-Šimůnková, Šárka , Smazalová, Eva
Coaxial laser cladding of internal diameter

The paper summarizes the result of laser cladding experiments design to observe the influence of the mutual angle of the cladding head and treated sample. The system, combining solid state disc laser with power up to 5.3 kW and cladding head with coaxial powder feeding, w...

Hruška, Matěj , Tesař, Jiří , Vostřák, Marek , Smazalová, Eva
Vliv změny optických vlastností povrchu na absorpci laserového záření

This study examines the relation between surface condition and its response to interaction with a laser. The surface character is modified by the creation of oxide layer. The oxide layers were created by solid state pulsed laser that is mostly used for industrial marking. The&...

Houdková-Šimůnková, Šárka , Vostřák, Marek , Česánek, Zdeněk
Vliv procesních paramerů na mikrostrukturu WC-NiCrBSi laserového návaru

Laser cladding is a progressive technology enabling to deposit coatings in thickness higher than 1 mm. In comparison with the conventional overwelds it offers the advantage of thinner heat-affected zone in the substrate material and lower and better controlled inner residual stress and&...

Moskal, Denys , Martan, Jiří , Smazalová, Eva , Houdková-Šimůnková, Šárka
Vliv stavu povrchu na výsledek laserového povrchového texturovaní

Laser surface texturing (LST) is one of the methods for obtaining surfaces with specific properties. In this paper the influence of initial surface state of sliding bearing steel on laser texturing of this material was studied. Initial surface with roughness R_a = 0.13 µm was&...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 6 z 6