Ivan Čorný
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View article: Assessment of Surface Integrity in Precision Electrical Discharge Machining of HSS EN HS6-5-2C
Assessment of Surface Integrity in Precision Electrical Discharge Machining of HSS EN HS6-5-2C Open
The integrity of the machined surface in precision wire electrical discharge machining (WEDM) of electrically conductive materials is one of the most important quality indicators. The integrity parameters of the machined surface are primar…
View article: Prediction and Multiparametric Optimization of the Machined Surface Quality of Tool Steels in Precise Wire Electrical Discharge Machining
Prediction and Multiparametric Optimization of the Machined Surface Quality of Tool Steels in Precise Wire Electrical Discharge Machining Open
This article describes a proposed procedure for multiparametric optimization of the quality of machined surfaces, including mathematical models that can predict the high quality of a precisely machined surface and, at the same time, the hi…
View article: Simulation and Optimization of Surface Roughness and Process Performance during Machining of HSS by Micro-WEDM Technology
Simulation and Optimization of Surface Roughness and Process Performance during Machining of HSS by Micro-WEDM Technology Open
When machining high-speed steels (HSS) with micro-wire electrical discharge machining (micro-WEDM), high surface quality is achieved as standard. The value of the roughness parameter Ra is less than 0.2 μm. However, the problem is the perf…
View article: Modeling of Heat Flux in a Heating Furnace
Modeling of Heat Flux in a Heating Furnace Open
Modern heating furnaces use combined modes of heating the charge. At high heating temperatures, more radiation heating is used; at lower temperatures, more convection heating is used. In large heating furnaces, such as pusher furnaces, it …
View article: Adjustment of Wire Vibrations in Order to Improve Geometric Accuracy and Surface Roughness at WEDM
Adjustment of Wire Vibrations in Order to Improve Geometric Accuracy and Surface Roughness at WEDM Open
Although WEDM is one of the most precise finishing technologies, deviations from the required geometric shapes and surface roughness occur in the production of parts with rotary surfaces. Even though these shortcomings have only a minimal …
View article: Pulse width modulation modeling for efficient pneumatic artificial muscle control
Pulse width modulation modeling for efficient pneumatic artificial muscle control Open
The aim of the article is to analyze the properties of artificial muscle system and effectiveness evaluation of the application of pulse width modulation in terms of improving the dynamic properties. In terms of dynamic properties, pneumat…
View article: Aspects of Determination of Convective Coefficients
Aspects of Determination of Convective Coefficients Open
The paper deals with selected aspects in the determination of convective coefficients and the formation of air convection models on solid surfaces. The goal is to assess the suitability of individual approaches for application in specific …
View article: Prediction of the Geometrical Accuracy of the Machined Surface of the Tool Steel EN X30WCrV9-3 after Electrical Discharge Machining with CuZn37 Wire Electrode
Prediction of the Geometrical Accuracy of the Machined Surface of the Tool Steel EN X30WCrV9-3 after Electrical Discharge Machining with CuZn37 Wire Electrode Open
The geometrical accuracy of the machined surface can generally be understood mainly as accuracy of shape, orientation, position and run-out. As a general rule; it is quantified by the corresponding deviations from the nominal area. The siz…
View article: Statistical Approach to Optimize the Process Parameters of HAZ of Tool Steel EN X32CrMoV12-28 after Die-Sinking EDM with SF-Cu Electrode
Statistical Approach to Optimize the Process Parameters of HAZ of Tool Steel EN X32CrMoV12-28 after Die-Sinking EDM with SF-Cu Electrode Open
The paper describes the results of the experimental research of the heat affected zone (HAZ) of an eroded surface after die-sinking electrical discharge machining (EDM). The research was carried out on chrome-molybdenum-vanadium alloyed to…
View article: Overview of Progressive Evaluation Methods for Monitoring of Heat Production and Distribution
Overview of Progressive Evaluation Methods for Monitoring of Heat Production and Distribution Open
The contribution describes the specific approach to the monitoring and evaluation of heat production and supply/distribution. The approach is based on application of progressive evaluation methods such as computational intelligence techniq…
View article: Properties Evaluation of Thin Microhardened Surface Layer of Tool Steel after Wire EDM
Properties Evaluation of Thin Microhardened Surface Layer of Tool Steel after Wire EDM Open
This paper describes results of experimental research on the thin microhardened surface layer of a machined surface that occurs in materials using wire electrical discharge machining (WEDM) with brass wire electrode. The direct influence o…