Electrical resistance deposition with a wire and deceleration of the roller electrode

Bulychev, V. V.; Zezyulya, V.V.

doi:10.1080/09507116.2011.554231

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…Authors in [9] proposed the mathematical model of the coating formation on the surface of cylindrical parts with electric contact wire surfacing. In the work of [10], there is a mathematical model of forming of sintered tape reinforced by metal grid for increasing mechanical properties using the electric contact seam welding.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Berezshnaya

Gribkov

Kuznetsov

2016

Advances in Materials Science and Engineering

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The forming of coating at electric contact surfacing is considered. The mathematical model of the coating formation is developed. The method of numerical recurrent solution of the finite-difference form of static equilibrium conditions of the selected elementary volume of coating is used. This model considers distribution of thermal properties and geometric parameters along the thermal deformation zone during the process of electric contact surfacing by compact material. It is found that the change of value of speed asymmetry factor leads to increasing of the friction coefficient in zone of surfacing. This provides the forming of the coating of higher quality. The limitation of the technological capabilities of equipment for electric contact surfacing is related to the size of recoverable parts and application of high electromechanical powers. The regulation of the speed asymmetry factor allows for expanding the technological capabilities of equipment for electric contact surfacing. The nomograms for determination of the stress on the roller electrode and the finite thickness of the coating as the function of the initial thickness of the compact material and the deformation degree are shown.

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Section: Introductionmentioning

confidence: 99%

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Berezshnaya

Gribkov

Kuznetsov

2016

Advances in Materials Science and Engineering

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“…However, the axial deformation in this work was controlled by changing the temperature parameters of the surfacing conditions and this complicates the assessment of the deformation processes impact on the increase in strength of the resulting welded layer. Bulychev and Zezyulya [15] proposed a mathematical model of the process of forming a layer on the surface of cylindrical parts during electrocontact surfacing with wire. e study is aimed at solving the problem of increasing the adhesion strength between the wire being deposited and the part without increasing the heat input and, accordingly, with minimizing the thermal effect on the part.…”

Section: Introductionmentioning

confidence: 99%

“…e study is aimed at solving the problem of increasing the adhesion strength between the wire being deposited and the part without increasing the heat input and, accordingly, with minimizing the thermal effect on the part. is problem, according to [15], can be solved by developing methods for controlling the axial deformation of the wire without changing the strength and duration of the surfacing current pulses. According to the mathematical model of the electrocontact surfacing process presented in the work [15], the values of the roller electrode rotation delay factor should be selected in the range 0.54-0.64. e results of the experimental studies given in the work [15] confirm the possibility of a significant increase in the strength of the adhesion of the wire to the part by increasing only the axial strain of the wire.…”

Section: Introductionmentioning

confidence: 99%

The Finite Element Modulation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Berezshnaya

Gribkov

Borovik

et al. 2019

Advances in Materials Science and Engineering

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The finite element modulation of forming of coating at electric contact surfacing is provided. This model considers distribution of thermal properties and geometric parameters along the thermal deformation zone during the process of electric contact surfacing by tapes. It is found that the change of the value of the speed asymmetry factor leads to increasing of the friction coefficient in the zone of surfacing which is caused by the increasing of the tangential contact stresses in the zone of contact of the electrode tape with the surface of the part. This leads to the forming of the coating with higher adhesion strength, and thereby the higher quality of the restored part under the lower operating regimes such as current pulse, force of the roller electrode, and duration of the current pulse is achieved. Mentioned above allows to decrease the thermal influence on the structure of the material.

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“…Процесс электроконтактной наплавки компактными материалами (проволоками, лентами) осуществляется совместным деформированием привариваемого материала и поверхностного слоя детали, нагретых в зоне деформации короткими импульсами тока [1][2][3]. Перекрытие сварочных точек между собой достигается вращением детали со скоростью, пропорциональной частоте импульсов тока [3].…”

Section: Introductionunclassified

Thermal Calculation of the Induction Heating Mode of the Surfaces Restored by Electric Contact Surfacing

Berezhnaia¹,

Кассов²

2018

Bulletin of KhNAHU

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Electrical resistance deposition with a wire and deceleration of the roller electrode

Cited by 3 publications

References 1 publication

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

The Finite Element Modulation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts

Thermal Calculation of the Induction Heating Mode of the Surfaces Restored by Electric Contact Surfacing

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