Πλοήγηση ανά Συγγραφέα "Petropoulos, G."
Αποτελέσματα 1-20 από 26
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ADVANCES IN MICRO-MANUFACTURING APPLYING TRIBOLOGICAL PRINCIPLES
(2010)Micro-manufacturing is a cover term for manufacturing processes applied to products possessing micro- and nano-scopic features. Due to the scaling of surface phenomena, the tribological aspects of such processes are much ... -
Analysis and optimization of dynamically loaded porous metal sliding bearings under conditions of elastohydrodynamic lubrication
(2007)Purpose - This paper aims to develop a simulating model of a journal porous metal bearing under elastohydrodynamic conditions and combined (radial, friction and thermal) load distribution and to carry out structural ... -
An ANN approach on the optimization of the cutting parameters during CNC plasma-arc cutting
(2010)The objective of the present study is to develop an Artificial Neural Network (ANN) in order to predict the bevel angle (response variable) during CNC plasma-arc cutting of St37 mild steel plates. The four (4) input ... -
Application of Taguchi design for quality characterization of abrasive water jet machining of TRIP sheet steels
(2012)In the present paper, the influence of sheet thickness, nozzle diameter, standoff distance, and traverse speed during abrasive water jet machining (AWJM) of transformation-induced plasticity (TRIP) sheet steels on surface ... -
Artificial neural networks modeling of surface finish in electro-discharge machining of tool steels
(2006)Electro-Discharge machining (EDM) is a thermal process with a complex metal removal mechanism that involves the formation of a plasma channel between the tool and the workpiece electrodes and the melting and evaporation ... -
Characterization and tribological properties of boride coatings of steels in a fluidized bed reactor
(2008)Purpose - The aim of the current research is to characterize boride coatings on steels and steel alloys produced in a CVD fluidized bed reactor. Design/methodology/approach - Heat treatments of alloys in fluidized bed ... -
Considering bearing curves of roughness on face milled surfaces of steel
(2001)The present contribution describes the statistical analysis of bearing (Abbott) curves of surface roughness produced by face milling of steel. Bearing curves parameters are found to closely correlate with feed rate and ... -
Evaluating the real profile length in turning of carbon steels
(2003)The real profile length constitutes a hybrid parameter in surface metrology which is rather neglected in literature, albeit it affects or controls sometimes surface functional properties like corrosion resistance, adhesibility, ... -
Finite elements analysis of cylindrical copper shelled SLA electrodes
(2010)A cylindrical copper shelled SLA electrode was modelled and analysed using the finite element method. The thickness of the silver paint is assumed to be uniform and constant around the SLA epoxy core with a value of 15 ... -
The impact of FEM modeling parameters on the computed thermo-mechanical behavior of SLA copper shelled electrodes
(2011)In this study, the authors use the finite element method to model and analyse a cylindrical copper shelled SLA electrode for EDM operations, which is investigated experimentally in literature. A uniform silver paint thickness ... -
Influence of local soil conditions on mouldboard ploughshare abrasive wear
(2008)A major problem related to use of tillage equipment is ploughshare wear due to abrasion by soil hard particles, as it seriously affects tillage quality and agricultural production economy. In the present study it is attempted ... -
Influence of surface topography on corrosion of stainless steel AISI 304 turned surfaces with different cutting conditions
(2007)In this study, the correlation between corrosion behaviour and formations, and topographic characteristics of machined surfaces of stainless steel AISI 304 is investigated. Face turning was performed for combinations of ... -
Modeling of surface finish in electro-discharge machining based upon statistical multi-parameter analysis
(2004)A multi-parameter analysis of surface finish imparted to Ck60 steel plates by electro-discharge machining (EDM) is presented. The interrelationship between surface texture parameters and process parameters is emphasized. ... -
Models of reliability for cutting tools: Examples in manufacturing and agricultural engineering
(2008)Reliability of machining systems depends to a great extent on the reliability of cutting tool performance with the latter being the weak link due to wear. Soil processing systems have many in common with machining systems ... -
Multi-parameter modeling of surface texture in EDMachining using the design of experiments methodology
(2006)This study concerns the formulation of a multi-parameter surface texture model in EDMachining of AISI D2 tool steel. The model is developed in terms of pulse current and pulse-on time which are the dominant machining ... -
POSTULATED MODELS FOR THE FRACTAL DIMENSION OF TURNED METAL SURFACES
(2009)Fractal geometry has been introduced to describe the roughness of machined surfaces for providing evaluation by one or two parameters. The present contribution is aimed at modelling the interactions of cutting conditions ... -
Predicting machinability parameters on drilling Glass Fibre Reinforced Plastics using Response Surface Methodology
(2008)Glass Fibre Reinforced Plastics (GFRPs) are new composite materials rapidly introduced in the manufacturing of industrial structures. The present study investigates the impact of cutting conditions, namely feed and cutting ... -
Prediction of surface roughness in turning using orthogonal matrix experiment and neural networks
(2010)A neural network modeling approach is presented for the prediction of surface texture parameters during turning of a copper alloy (GC-CuSnl2). Test specimens in the form of near-to-net-shape bars and a titanium nitride ... -
Statistical study of surface roughness in turning of peek composites
(2008)The present paper is aimed at studying the impact of cutting conditions on surface roughness in turning of polyethertherketone (PEEK) composites. The latter are widely used in manufacturing industry and possess excellent ...