scholarly journals AUTOMATED EFFECTIVENESS CONTROL SYSTEM OF TOOL HOUSE FOR TOOL STRENGTHENING IN GLOW DISCHARGE

2021 ◽  
Vol 2021 (1) ◽  
pp. 19-27
Author(s):  
Vladimir Logvin ◽  
Tatyana Karlova
Keyword(s):  
Glow Discharge ◽  
Plasma Generator ◽  
Automated System ◽  
Time Duration ◽  
Technological Environment ◽  
Tool Materials ◽  
Investigation Methods ◽  
Wide Range ◽  
Control And Management ◽  
Plasma Generators

The work purpose consists in the increase of effectiveness and quality in the engineering process control of the tool house ensuring strengthening a wide range of different tools and tool materials in plasma-generators of a glow discharge. Investigation methods. The application of computer systems is for the simulation of real production object operation with the purpose of quality and effectiveness increase in these objects control as a method of investigations consisting in operation computer imitation of a tool house equipped with plasma-generators of a glow discharge both at separate stages of processing and in the course of the whole industrial process. It will allow developing an optimum system of quality control of engineering processes for processing a wide range of tools with different profiles and tool materials in plasma-generators of a glow discharge. The essence of a modeling method consists in the development of such algorithms and programs which imitate the behavior of the tool house equipped with plasma-generators of a glow discharge its properties necessary for investigations, amount and field of technological parameter changes Investigation results. Plasma formed in consequence of explosive emission has in its structure the whole essential spectrum of ions for the formation of specified physical-mechanical properties on working surfaces of tools under strengthening. It contributes to the formation of the essential structure of bombarding ion flow with the wide range of frequencies and energy. The state and value of the layer strengthened located under an oxide film and formed at the stage of previous working operations at manufacturing tools and their working parts. This layer is characterized with the increased density of dislocations in depth and micro-crack presence not only within grains but between them. The uniformity of force impact depending upon current strength stability in a discharge and voltage upon electrodes in the plasma-generator is to be adjusted at constant pressure by the rate of technological environment pumping through a plasma-generator. Conclusions. The application of some quickly reset plasma-generators in tool production ensures work effectiveness increase of the tool house at the expense of optimization of tool machining in different engineering processes and with different time duration carrying out pre-production operations in the course of the plasma-generators operation and carrying out their charging from the automated area of waiting. The simulation algorithm developed at the formation of the automated system for control and management of effectiveness and quality in tool house work in different tool strengthening in plasma-generators of a glow discharge with stages different in character of plasma impact, duration and sequence of their realization allowed optimizing tool house equipment. The development of the automated system for control and management of effectiveness and quality of the working operation of plasma-generators of a glow discharge allowed optimizing the formation of the stage sequence with quick-acting processes during processing tools with different shape ensuring the formation of specified properties in neighboring layers which meets the requirements of automated technological environment.

AUTOMATED SYSTEM FOR QUALITY CONTROL OF TOOL PROCESSING IN GLOW DISCHARGE BASED ON NEURAL NETWORK MONITORING

2021 ◽  
Vol 2021 (3) ◽  
pp. 16-24
Author(s):  
Vladimir Logvin ◽  
Tatyana Karlova
Keyword(s):  
Neural Network ◽  
Glow Discharge ◽  
Continuous Monitoring ◽  
Network Monitoring ◽  
Plasma Generator ◽  
Automated System ◽  
Quality Of Control ◽  
Investigation Methods ◽  
Wide Range

Work purpose: improving effectiveness and quality in the control of engineering processes of tool working in the plasma generator of a glow discharge based on neural network monitoring. Investigation methods: use of nature and regularities of human thought at the development of the computer model of a neural network allowed realizing a cybernetic approach at real production object work modeling with the purpose of increasing effectiveness and quality of control at the management based on neural network monitoring. The essence of the modeling method consists in the development of such algorithms and programs which imitate the behavior of the plasma generator of a glow discharge, its characteristics in the structure, volume and field of technological parameter use essential for the research. Investigation results: the system offered for the control of effectiveness and quality of realizable engineering processes during plasma generator work based on neural network monitoring allows ensuring good repeatability of the results on tool strengthening. The defined sequence of engineering process operations of product working in the plasma generator of a glow discharge ensures the formation of specified structure and micro-hardness on the surface of products under processing. In the system offered control and management are formed on the basis of a neural network approach and imitate system behavior at all machining steps of processing. The results of continuous monitoring are shown with the essential discontinuity in on-line modes in the form of values and deviations of controlled technological parameters of the working process on the display of an electronic control unit. The generality and simultaneous uniqueness of the properties of continuous monitoring systems on applicability for real technological object control and range extension of problems solved with their help transforms them into compulsory means for complex automated device equipment. The modeling algorithm offered at the formation of an automated system to control effectiveness and quality in functioning plasma generator of a glow discharge for strengthening a wide range of tools with different profiles with machining steps differed in character of plasma impact, duration and their realization priority allowed optimizing the repeatability of results in ensuring specified properties in surface-bounded layers that satisfies conditions of the automated technological environment.

The impact of the workability of an automated technological system on the effective implementation of the production program when processing tools in glow discharge plasma generators

2021 ◽  
pp. 58-65
Author(s):  
V.A. Logvin ◽  
◽  
S.A. Sheptunov ◽  
Keyword(s):  
Glow Discharge ◽  
Discharge Plasma ◽  
Functional Dependence ◽  
Plasma Generator ◽  
Glow Discharge Plasma ◽  
Optimal Time ◽  
Time Interval ◽  
Production Program ◽  
The Impact ◽  
Plasma Generators

The conditions for the hardening of tools in accordance with the author’s technological routes in the optimal time interval are considered using the functional dependence of the serviceability of plasma generators. This dependence takes into account the workability of the technical devices involved in processing the laying batch of tools in the speci ed time interval. The probability of performing the production process in the estimated time is represented by the product of the trouble-free operation of each glow discharge plasma generator involved in the nishing processing of tools that require a different type of plasma exposure in a certain sequence and duration.

scholarly journals MONITORING OF AUTOMATED TECHNOLOGICAL ENVIRONMENT FOR TOOL WORKING IN PLASMA-GENERATOR OF GLOW DISCHARGE BASED ON NEURONET APPROACH

2020 ◽  
Vol 2020 (12) ◽  
pp. 31-37
Author(s):  
Vladimir Logvin ◽  
Tatyana Karlova
Keyword(s):  
Glow Discharge ◽  
Plasma Generator ◽  
Current Strength ◽  
Engineering Process ◽  
Pumping Rate ◽  
Working Volume ◽  
Investigation Methods ◽  
Considerable Impact ◽  
Gas Environment ◽  
The Stability

The work purpose is to increase effectiveness and quality of engineering process control of tool working in a plasma-generator of a glow discharge based on a neuronet approach. Investigation methods: use of computer technologies based on an artificial neuronet system for the creation of control systems as an investigation method consisting in computer imitation of the process of plasma-generator operation at separate stages of processing. It will allow developing an optimum system for quality control and management of engineering processes performed for tool working in the plasma-generator of a glow discharge. The essence of the modeling method when using an artificial neuronet approach consists in the development of such algorithms and programs which imitate the behavior of the plasma-generator, its properties and characteristics in the composition essential for investigations, volume and field of technical parameter changes. Investigation results: the operation sequence of the engineering process for product working in the plasma-generator of a glow discharge ensures the formation of the specified structure and micro-hardness on the surface of products worked. A considerable impact upon working quality is made by the structure of technological gas environment and a rate of its pumping at constant pressure in a vacuum chamber for the formation of the essential flux of bombarding ions with the specified value of kinetic energy before a hit on a surface. During the development of working stage sequence there is taken into account a state and magnitude of the defected layer formed at the stages of previous working and ageing. The effectiveness of force impact is defined with the stability of current strength in the discharge and electrode voltage in the plasma-generator of a glow discharge. The fluctuations of current strength and voltage at discharge burning depends upon the stability of structure, pressure and a pumping rate of technological gas environment through a working volume of the plasma-generator.

Fully Automated System for Air Velocity Profile Measurement

2012 ◽  
Vol 59 (4) ◽  
pp. 435-451 ◽  
Author(s):  
Mirosław Kabacinski ◽  
Roland Pawliczek
Keyword(s):  
Velocity Profile ◽  
Virtual Instrument ◽  
Automated System ◽  
Stepper Motor ◽  
Profile Measurement ◽  
Air Velocity ◽  
Time Duration ◽  
Wide Range ◽  
Velocity Profile Measurement ◽  
Linear Module

The paper presents the idea of a system for controlling the movement of a flowmeter for air velocity profile measurement. In such a system, due to massive amount of data and limitations of the Data Acquisition Equipment, it is necessary to use moveable sensors. The flowmeter sensor is moved with the use of a linear module with a stepper motor and a tooth-belt drive. The location and speed of the sensor are controlled by a program based on the idea of virtual instrument. The proposed structure allows the user to control operation of the stand and provides automatic measurement. A wide range of velocity and step increments of the stepper motor drive, and flexibility of the virtual instrument software, allow one to create effective measurement systems ensuring sufficiently precise location with optimal time duration of measurement. It is shown that the linear module with tooth-belt is an effective alternative for similar modules with micro-screw drives.

The influence of the automation level of glow discharge plasma generators on the effective use of their technical capabilities for strengthening tools

2021 ◽  
pp. 46-52
Author(s):  
V.A. Logvin ◽  
◽  
S.A. Sheptunov ◽  
Keyword(s):  
Glow Discharge ◽  
Discharge Plasma ◽  
Combined Cycle ◽  
Operating Conditions ◽  
Automated System ◽  
Glow Discharge Plasma ◽  
Chemical Compositions ◽  
Effective Use ◽  
Selection Of ◽  
Plasma Generators

The conditions for increasing the efficiency of using the technical capabilities of glow discharge plasma generators, depending on the level of their automation, are considered. A dependence with a variable share of costs in the form of automation parameters and rationality is obtained, which allows us to evaluate the operating conditions of an automated system for pumping sets of combined-cycle gas media with reference to automation conditions. The ratio of downtime associated with failures in the automated system of pumping combined-cycle gas media to the corresponding planned indicators is a simple and convenient indicator for assessing the optimality of the conditions for stabilizing the occurrence of downtime and vehicle shutdowns. An algorithm for solving the problem of forming a minimum nomenclature of sets of steam-gas media and the selection of their chemical compositions for technological transitions when processing tools of complex shape and consisting of working parts of different materials is proposed.

scholarly journals SCHROEDINGER EQUATION USE FOR INVESTIGATIONS OF PHENOMENA TAKING PLACE IN PLASMA GENERATOR OF GLOW DISCHARGE

2020 ◽  
Vol 2020 (9) ◽  
pp. 19-27
Author(s):  
Sergey Sheptunov ◽  
Vladimir Logvin ◽  
Lyudmila Uvarova ◽  
Tatyana Karlova
Keyword(s):  
Wave Function ◽  
Charged Particle ◽  
Glow Discharge ◽  
Schroedinger Equation ◽  
Plasma Generator ◽  
High Energy ◽  
Glow Discharge Plasma ◽  
Closed Volume ◽  
Technological Environment ◽  
Particle Flows

The work purpose is development of the theory ensuring creation of an efficient system of fast process control in the plasma generator of a glow discharge and contributing to the development of new techniques and equipment for their realization under conditions of controllable automated tool production. There are used regulations of quantum mechanics lying in that any system can be described by setting in a general case a complex wave function of the kind of . A possibility to find out a charged particle at the time t in some point of the near-cathode area of the closed volume of the plasma generator with the radius-vector was defined by probability density which is presented by a module square of the wave function of . In the course of the investigation carried out there are obtained the following results. The formation of charged particle flows in the plasma generator of a glow discharge has a probabilistic character. The Schroedinger equation use to obtain analytical dependences describing the processes of charged particle flows formation in the plasma generator of a glow charge is the most corresponding as it allows defining a value of their energy depending on the gas technological environment used. The rate change of gas technological environment pumping allows forming a corresponding volume of ions having specified energy and frequency, in the flow taking into account their mass and energy according to the adopted exponential distribution of ion mass in the flow. In automated technological environment having changed a kind of gas technological environment and a rate of its pumping it is possible to obtain predictable results of the impact of glow discharge plasma upon a surface of products worked explaining the effect of defect generation. As a result of high-energy ion bombardment of the surface of products under processing in the plasma generator of the glow discharge there is discovered the presence of a dissipative process with the elements of self-organization. The low-energy ion presence in the flow ensures an ion current transfer which results in the change of chemical and phase structure in the surface volume of material, its modification and reduction of a crystalline structure and also in amorphism on the surface.

scholarly journals SCHROEDINGER EQUATION USE FOR INVESTIGATIONS OF PHENOMENA TAKING PLACE IN PLASMA GENERATOR OF GLOW DISCHARGE

2020 ◽  
Vol 2020 (9) ◽  
pp. 19-28
Author(s):  
Sergey Sheptunov ◽  
Vladimir Logvin ◽  
Lyudmila Uvarova ◽  
Tatyana Karlova
Keyword(s):  
Wave Function ◽  
Charged Particle ◽  
Glow Discharge ◽  
Schroedinger Equation ◽  
Plasma Generator ◽  
High Energy ◽  
Glow Discharge Plasma ◽  
Closed Volume ◽  
Technological Environment ◽  
Particle Flows

The work purpose is development of the theory ensuring creation of an efficient system of fast process control in the plasma generator of a glow discharge and contributing to the development of new techniques and equipment for their realization under conditions of controllable automated tool production. There are used regulations of quantum mechanics lying in that any system can be described by setting in a general case a complex wave function of the kind of . A possibility to find out a charged particle at the time t in some point of the near-cathode area of the closed volume of the plasma generator with the radius-vector was defined by probability density which is presented by a module square of the wave function of . In the course of the investigation carried out there are obtained the following results. The formation of charged particle flows in the plasma generator of a glow discharge has a probabilistic character. The Schroedinger equation use to obtain analytical dependences describing the processes of charged particle flows formation in the plasma generator of a glow charge is the most corresponding as it allows defining a value of their energy depending on the gas technological environment used. The rate change of gas technological environment pumping allows forming a corresponding volume of ions having specified energy and frequency, in the flow taking into account their mass and energy according to the adopted exponential distribution of ion mass in the flow. In automated technological environment having changed a kind of gas technological environment and a rate of its pumping it is possible to obtain predictable results of the impact of glow discharge plasma upon a surface of products worked explaining the effect of defect generation. As a result of high-energy ion bombardment of the surface of products under processing in the plasma generator of the glow discharge there is discovered the presence of a dissipative process with the elements of self-organization. The low-energy ion presence in the flow ensures an ion current transfer which results in the change of chemical and phase structure in the surface volume of material, its modification and reduction of a crystalline structure and also in amorphism on the surface.

scholarly journals Wear Resistance of (Ti,Al)N Metallic Coatings for Extremal Working Conditions

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 157
Author(s):  
Jarosław Mikuła ◽  
Daniel Pakuła ◽  
Ludwina Żukowska ◽  
Klaudiusz Gołombek ◽  
Antonín Kříž
Keyword(s):  
Wear Resistance ◽  
Functional Properties ◽  
Tool Life ◽  
Cutting Tools ◽  
Hard Coatings ◽  
Metallographic Analysis ◽  
Process Conditions ◽  
Tool Materials ◽  
Coated Materials ◽  
Wide Range

The article includes research results for the functional properties achieved for a wide range of sintered tool materials, including sintered carbides, cermets and three types of Al2O3 oxide tool ceramics ((Al2O3 + ZrO2, Al2O3 + TiC and Al2O3 + SiC(w)) with (Ti,Al)N coating deposited in the cathodic arc evaporation (CAE-PVD) method and comparison with uncoated tool materials. For all coated samples, a uniform wear pattern on tool shank was observed during metallographic analysis. Based on the scanning electron microscope (SEM) metallographic analysis, it was found that the most common types of tribological defects identified in tested materials are: mechanical defects and abrasive wear of the tool side, crater formation on the tool face, cracks on the tool side, chipping on the cutting edge and built-up edge from chip fragments. Deposition of (Ti,Al)N coating on all tested substrates increases the wear resistance and also limits the exceeding of critical levels of permanent stresses. It even increases the tool life many times over. Such a significant increase in tool life results, among other things, from a large increase in microhardness of PVD coated materials compared to uncoated samples, increased resistance to thermal and chemical abrasion, improved chip formation and removal process conditions. Use of hard coatings applied to sintered tool materials is considered to be one of the most important achievements in improving the functional properties of cutting tools and can still be developed by improving the coating structure solutions (sorted and nanocrystalline structures) and extending the range of coating applications (Ti,Al)N in a variety of substrates.

AUTOMATED SYSTEM OF TAX AUTHORITIES AS AN EXAMPLE OF A SYSTEM FOR ORGANIZING CONTROL ACTIVITIES BASED ON INFORMATION TECHNOLOGIES OF GOVERNMENT AUTHORITIES

2021 ◽  
Vol 2 (4) ◽  
pp. 37-41
Author(s):  
M. E. BUBNOVA ◽  
Keyword(s):  
Information Systems ◽  
Russian Federation ◽  
Information Technologies ◽  
Automated System ◽  
Digital Society ◽  
Modern Development ◽  
The Russian Federation ◽  
Control And Management

The modern development of automated information systems has given a huge impetus to the organization of control and management activities of the authorities of the Russian Federation. The most stable today is the IT system of the Federal Tax Service of Russia. There is an opportunity to analyze the work of the automated system of the authorities. This will allow us to further implement the strategy for the development of the digital society in Russia, reduce the risks and costs of systems that allow the authorities to carry out their duties.

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