scholarly journals ELECTROMAGNETIC FIELD OF W-SHAPED INDUCTOR FOR MAGNETIC-PULSE PROCESSING OF MATERIALS

2019 ◽  
Vol 2019 (6) ◽  
pp. 5-12 ◽  
Author(s):  
A.P. Rashchepkin ◽  
◽  
I.P. Kondratenko ◽  
A.N. Karlov ◽  
R.S. Kryshchuk ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Magnetic Pulse ◽  
Pulse Processing

scholarly journals Specific features of thermal deforming of composite inductors during magnetic-pulse processing of materials

2021 ◽  
pp. 127-130
Author(s):  
Galina Ottovna Anishchenko ◽  
Vladimir Ivanovich Konokhov ◽  
Denis Vladimirovich Lavinsky
Keyword(s):  
Electromagnetic Field ◽  
Temperature Field ◽  
Strain State ◽  
Nonlinear Effects ◽  
Magnetic Pulse ◽  
The Finite Element Method ◽  
Stress Strain ◽  
Pulse Processing ◽  
Stress Strain State ◽  
Field Temperature

The problem of taking into account a non-stationary inhomogeneous temperature field in the analysis of the stress-strain state of inductor systems for magnetic-pulse processing of materials is considered. It follows from the analysis of open information sources that the problem of analyzing a non-stationary temperature field arising from the presence of a non-uniform electromagnetic field and its effect on deformation has been sufficiently studied in relation to induction heating. At the same time, during other operations of magnetic-pulse processing of materials, heating of equipment can cause additional deformations of a significant magnitude, which, in turn, can lead to a loss of equipment performance due to destruction or irreversible deformation. A general approach to the analysis of such problems is proposed, which involves the determination of the spatial-temporal distributions of the quantitative characteristics of the electromagnetic field, temperature field and stress-strain state. The necessity of using numerical methods for carrying out such an analysis has been substantiated. The most effective numerical method is the finite element method, which makes it possible to analyze the unsteady electromagnetic field, temperature field, and stress-strain state within the same calculation scheme. In this case, within the framework of the finite element method, iterative schemes can be created that allow taking into account nonlinear effects. Here, nonlinear effects can be due to the dependence of the mechanical and electro-physical properties of the material on temperature, the plastic nature of deformation, and the need to take into account contact phenomena. The results of complex analysis for a composite single-turn inductor with a dielectric band are presented. The features of contact interaction were taken into account by introducing layers of contact finite elements. The stress-strain state of the inductor is estimated for two variants of the materials used: copper and non-magnetic steel.    

scholarly journals Heat generation in devices for magnetic-pulse processing of materials

2021 ◽  
pp. 123-126
Author(s):  
Galina Ottovna Anishchenko ◽  
Vladimir Ivanovich Konokhov ◽  
Denis Vladimirovich Lavinsky
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Temperature Field ◽  
Heat Generation ◽  
Magnetic Pulse ◽  
The Finite Element Method ◽  
Stationary Temperature Field ◽  
Pulse Processing ◽  
Uniform Electromagnetic Field

The problem of analysis of non-stationary heat generation due to the flow of electric current in devices for magnetic-pulse processing of materials is considered. An analysis of the available information sources led to the conclusion that a large number of studies in this area are devoted to the study of heat transfer processes during technological operations of induction heating. In other technological operations of magnetic-pulse processing of materials, heat release is also significant. In this case, a non-stationary inhomogeneous temperature field can lead to significant temperature deformations. This, in turn, can cause a loss in the performance of the device due to destruction or irreversible deformation. Adequate modeling of non-stationary temperature propagation in this case is an obligatory step in carrying out computational analysis in the process of designing technological devices. A general strategy is proposed for determining the propagation of a non-stationary temperature field in the presence of a non-stationary non-uniform electromagnetic field. The proposed strategy presupposes a general solution of the problems of the propagation of the electromagnetic field and the temperature field within the framework of a unified design scheme. The use of the finite element method is proposed as a numerical method. The finite element method, when used in such problems, allows one to draw up iterative procedures that can be used to take into account the nonlinear effects associated with the influence of temperature on the electro-physical properties of materials. The problem of sequential determination of a non-stationary, non-uniform electromagnetic field and a non-stationary temperature field in composite matrices intended for electromagnetic pressing of powders of super-strong refractory materials is considered. The distribution of some quantitative characteristics of the electromagnetic field, as well as the dependence of temperature on time are presented.    

scholarly journals MAGNETIC FORCES AND CURRENTS OF THE INDUCTOR FOR MAGNETIC-PULSE PROCESSING OF OF WELDING JOINTS OF NON-MAGNETIC THIN SHEET METALS

2020 ◽  
Vol 2020 (5) ◽  
pp. 74-79
Author(s):  
A.P. Raschepkin ◽  
◽  
I.P. Kondratenko ◽  
O.N. Karlov ◽  
R.S. Kryshchuk ◽  
...  
Keyword(s):  
Thin Sheet ◽  
Magnetic Pulse ◽  
Sheet Metals ◽  
Magnetic Forces ◽  
Pulse Processing ◽  
Welding Joints

The efficiency of backward magnetic-pulse processing

2017 ◽  
Vol 43 (1) ◽  
pp. 92-94 ◽  
Author(s):  
Yu. B. Kudasov ◽  
D. A. Maslov ◽  
O. M. Surdin
Keyword(s):  
Magnetic Pulse ◽  
Pulse Processing

scholarly journals Magnetic-pulse processing of seeds of berry crops 

2018 ◽  
Vol 64 (No. 4) ◽  
pp. 181-186 ◽  
Author(s):  
Andrey Izmailov ◽  
Igor Smirnov ◽  
Dmitriy Khort ◽  
Rostislav Filippov ◽  
Alexey Kutyrev
Keyword(s):  
Magnetic Field ◽  
Control Sample ◽  
Low Frequency ◽  
Magnetic Pulse ◽  
Pulse Processing ◽  
Berry Crops ◽  
Frequency Magnetic Field ◽  
Irradiation Frequency ◽  
Pulsed Electromagnetic ◽  
Maximum Increment

The effect of a pulsed low-frequency magnetic field on the seed germination and the growth of seedlings of strawberry garden under different conditions of processing and functioning of the apparatus magnetic-pulse processing of plants (MPP) developed by us has been established experimentally. The research has shown that the value of the germination energy of seeds treated with a pulsed magnetic field varied from 29 to 47 percent, of germination from 34 to 48 percent. The highest value of their germination corresponds to an irradiation frequency of 16 Hz and an exposure time of 360 seconds with an induction value in the treatment zone of 5 mT. The maximum increment in the germination of irradiated seeds was 14 percent compared to the control sample. The positive effect of pulsed electromagnetic fields on linear dimensions of germs has been revealed. The increase in the biometric parameters of strawberry shoots affected their weight, compared to the control it increased by 33.3 percent.

Magnetic-pulse processing at micropropagation and cleaning up of fruit and small fruit crops from viruses

2021 ◽  
pp. 105-110
Author(s):  
M.T. Upadyshev ◽  
I.M. Kulikov ◽  
V.I. Donetskich ◽  
A.D. Petrova ◽  
K.V. Metlitskaya ◽  
...  
Keyword(s):  
Magnetic Pulse ◽  
Fruit Crops ◽  
Pulse Processing ◽  
Small Fruit

scholarly journals Improving the Accuracy and Quality of the Surface Layer of Products by Local Magnetic Pulse Processing

2021 ◽  
Vol 346 ◽  
pp. 01029
Author(s):  
Vasily Gritsyuk ◽  
Evgeny Smolentsev ◽  
Dmitriy Krokhin ◽  
Aleksandr Pechagin
Keyword(s):  
Heat Treatment ◽  
Surface Layer ◽  
Mechanical Engineering ◽  
Magnetic Pulse ◽  
Surface Layers ◽  
Processing Methods ◽  
Pulse Processing ◽  
Accuracy And Stability

This article discusses development of technological modes and the process of stabilizing the properties of surface layers of large-sized parts, ensuring accuracy and stability of the products’ shape during their manufacture and operation, while using combined processing methods that replace costly heat treatment at mechanical engineering enterprises.

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