AN EXAMINATION OF THE CONDITION OF WORKING SURFACES OF CRANKSHAFT CRANKPINS AND JOURNALS BASED ON THE MATERIAL FRACTION CURVES
Journal Title: Tribologia - Year 2016, Vol 265, Issue 1
Abstract
The paper focuses on the significance of the microgeometry of the working surfaces of crankpins and the main bearing journals on the durability and reliability of farm tractor engines. Alternative surface roughness parameters for the quantitative description of the material fraction curve are suggested to be applied as factors facilitating the evaluation of the performance properties of the working surfaces of the crankpins and main bearing journals. The results of graphometric profile examination of new crankshafts, the crankshafts recognized as run-in, and reworked ones have been provided and the assessment of the results concerned was basis for the evaluation of the proposed methodology for the examination of the microgeometry of the surfaces concerned. The results confirmed the suitability of slope indicators of straight lines describing the behaviour of material fraction as the evaluation parameters of performance properties of the working surfaces of the crankpins and main bearing journals.<br/><br/>
Authors and Affiliations
Tomasz STAWICKI, Paweł SĘDŁAK
Keywords
Related Articles
- EP ID EP248234
- DOI 10.5604/01.3001.0010.7586
- Views 62
- Downloads 0
WPŁYW SPIRALNEGO ROWKA NA CHARAKTERYSTYKI STATYCZNE ŁOŻYSK ŚLIZGOWYCH
Hydrodynamiczne łożyska ślizgowe pracujące w zanieczyszczonym środowisku narażone są na poważne uszkodzenia powodujące awarie maszyn. W trudnych warunkach pracy można zastosować łożyska ślizgowe ze spiralnym rowkiem na p...
Metody badań łożysk tocznych w aspekcie współczesnych wymagań wyrobów o wyższych parametrach eksploatacyjnych
Rozwój konstrukcji urządzeń mechanicznych wymusza intensywny postęp w produkcji łożysk tocznych. Kryteria, jakie muszą spełniać łożyska narzucają konieczność oferowania produktów dedykowanych dla konkretnych aplikacji. W...
THERMAL, MECHANICAL, AND TRIBOLOGICAL PROPERTIES OF PTFE COMPOSITE WITH 20% GRAPHITE CONTENT IRRADIATED WITH AN ELECTRON BEAM
The paper investigated the effect of irradiation with an electron beam of energy 10MeV in doses of 26-156 kGy on polytetrafluoroethylene with a 20% graphite additive. The tests have shown that changes in thermal properti...
AN INFLUENCE OF MECHANICAL PROPERTIES OF THE AlCrTiN COATINGS DEPOSITED BY CATHODIC ARC METHOD ON THEIR WEAR RESISTANCE AT AN ELEVATED TEMPERATURE
The paper presents the results of research on an effect of selected properties of multicomponent coatings AlCrTiN (i.e. the defectiveness ratio, hardness, Young modulus, adhesion), deposited by cathodic arcvacuum method,...
RESEARCH ON FRICTION RESISTANCE IN THE CONCENTRATED CONTACT STEEL – ON-MAGNESIUM ALLOY