Št. zadetkov: 21
Kratki znanstveni prispevek
Oznake:
nodular cast iron;residual stresses;laser surface remelting;
The measurement of residual stresses is very important in exacting dynamically loaded machine parts which have been subjected to different kinds of heat treatment. In designing parts designers very frequently demand the presence of compressive residual stresses after heat treatment and finish grindi ...
Leto:
2000
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Izvirni znanstveni članek
Oznake:
laser cutting;surface roughness;macroanalysis;microhardness;
Studies on the surface macrostructure and microstructure and the subsurface of the cut, indicate that by measuring various roughness parameters, the laser cutting process can be optimized very successfully. Different energy inputs and various modes of laser beam operation allowed us to ascertain tha ...
Leto:
2001
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Izvirni znanstveni članek
Oznake:
Leto:
2007
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Diplomsko delo
Oznake:
kompoziti;polimerni kompoziti;ogljikova vlakna;štiri-točkovni test;viskoelastičnost;lezenje;
Polimerni kompozitni materiali so eni izmed najbolj razširjenih materialov v industriji in v splošni uporabi. V sklopu zaključne naloge bomo merili vpliv različnih tehnoloških postopkov izdelave in orientacije vlaken na splošne mehanske lastnosti materiala ter njihov vpliv na viskoelastične lastnost ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Kratki znanstveni prispevek
Oznake:
quenching agent;microhardness;cooling rate;cooling intensity;
The paper presents results of cooling intensities of some oils of domestic production and of polymer water solutions. Numerous temperature measurements on heat-treatment steel samples with different masses were made providing very important information on cooling rates for a material when using diff ...
Leto:
2000
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Izvirni znanstveni članek
Oznake:
magnetic Barkhausen noise;microstructure analysis;cold deformation;
The magnetic Barkhausen effect is a phenomenon occurring during magnetisation of ferromagnetic materials and related to movements of magnetic domains under the influence of an alternating magnetic field. Behaviour of magnetic domains is dependent on microstructure characteristics such as grain size ...
Leto:
2001
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Izvirni znanstveni članek
Oznake:
quenching process;steel 42CrMo4;residual stresses;relaxation method;strain gauge method;
Increasing demands of users regarding ensurance of the specified mechanical properties and working order of machine parts and products require a search of relations between the composition and microstructure and certain knowledge of residual stresses present based on good knowledge of the quenching ...
Leto:
2001
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Doktorska disertacija
Oznake:
optimizacija;procesni parametri;robustno vodenje;injekcijsko brizganje;skrčki;zvijanje;umetna inteligenca;neporušitveno testiranje;akustična emisija;valčna transformacija;
V doktorski disertaciji je predstavljena metoda za optimiziranje procesnih parametrov v procesu injekcijskega brizganja termoplastičnih materialov, ki je implementirana v razvitem inteligentnem sistemu %C-3. Predlagana metoda optimizacije procesnih parametrov temelji na kombiniranem pristopu treh me ...
Leto:
2014
Vir:
Fakulteta za elektrotehniko, računalništvo in informatiko (UM FERI)
Doktorska disertacija
Oznake:
neporušne preiskave;akustična emisija;analiza signalov;kaljenje;mehanske lastnosti;
Direktno potopno kaljenje se uporablja za izboljšanje mehanskih lastnosti različnih jeklenih strojnih delov. Postopek poteka na način, da se obdelovance segreje na temperaturo avstenitizacije in nato ohladi z gašenjem v gasilnem sredstvu. V okviru disertacije je razvita neporušna metoda nadzora kalj ...
Leto:
2019
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
lasersko udarno utrjevanje;rast utrujenostne razpoke;aluminijeve zlitine;zaostale napetosti;lomna žilavost;laser shock processing;fatigue crack growth;aluminium alloys;residual sresses;fracture toughness;
The effects of laser shock processing without protective coating on high-cycle fatigue crack growth and fracture toughness were investigated. Laser shock peening treatment was performed on compact tension specimens from both sides perpendicular to the crack growth direction, followed by subsequent g ...
Leto:
2016
Vir:
Fakulteta za strojništvo (UL FS)