Model Based Prediction of the Heat Affected Zone in a Steel Workpiece Induced by an EDM Single Discharge

Hess, R.; Heidemanns, L.; Herrig, T.; Klink, Andreas; Bergs, Thomas

doi:10.1016/j.procir.2023.03.045

Cited by 3 publications

(11 citation statements)

References 17 publications

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“…The EDM process involves a wide range of phenomena, such as phase transitions [79][80][81], melt behavior [82][83][84], oxidation [36,50,85], residual stresses [86][87][88][89][90], energy transfer, absorption and dissipation [91][92][93][94], chemical reactions [75,95], microstructural changes [53,81,96], etc. The EDM process is generally based on the melting and evaporation of material under the influence of highly concentrated electrical energy, which is converted into thermal energy.…”

Section: Edm Process Physicsmentioning

confidence: 99%

“…In ceramic composites, depending on the strength of the discharge, it is possible to observe the breakage or fracture of reinforcing fibers and brittle fracture of the matrix [102]. The EDM process involves a wide range of phenomena, such as phase transitions [79][80][81], melt behavior [82][83][84], oxidation [36,50,85], residual stresses [86][87][88][89][90], energy transfer, absorption and dissipation [91][92][93][94], chemical reactions [75,95], microstructural changes [53,81,96], etc.…”

Section: Edm Process Physicsmentioning

confidence: 99%

“…Regression analysis is most often used for this purpose [117,167,183]. Currently, phenomenological models are also described, encompassing changes in the structure of the material and phase transitions during EDM [79]. Nevertheless, modeling of the EDM process is most often implemented using modern numerical methods and applied engineering analysis systems [133].…”

Section: Mathematical Description Of the Edm Process And Numerical Si...mentioning

confidence: 99%

“…The finite element method is the discretization of the object under study into a finite set of elements and a piecewise-element approximation of the studied solution functions that depend on spatial coordinates and time [194]. In the numerical simulation of the problem using the FEM and MCS, the distribution of heat is considered within the framework of thermal approaches [76,79,188,195]. Such models have several disadvantages [76,188,189]: the exclusion of electrodes from the model or the invariance of their geometry, constant meshes of the processed surface that do not change in time, canonical geometry, the simplest heat distribution mechanisms, absence of material behavior dynamics (melting and solidification process), etc.…”

Section: Numerical Simulation Of the Edm Processmentioning

confidence: 99%

“…The methods are based on numerical simulation of the trajectory and interaction of atoms and molecules [18,76,83]. Simulation of an electric field or phase transitions of a material structure is carried out using the phase field method (PFM) [18,79,198]. That expands the possibilities of numerical implementation of the physics and electro-mechanics of the process.…”

Section: Numerical Simulation Of the Edm Processmentioning

confidence: 99%

See 4 more Smart Citations

Recent Trends and Developments in the Electrical Discharge Machining Industry: A Review

Kamenskikh,

Muratov,

Shlykov

et al. 2023

JMMP

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Electrical discharge machining (EDM) is a highly precise technology that not only facilitates the machining of components into desired shapes but also enables the alteration of the physical and chemical properties of workpieces. The complexity of the process is due to a number of regulating factors such as the material of the workpiece and tools, dielectric medium, and other process parameters. Based on the material type, electrode shape, and process configuration, various shapes and degrees of accuracy can be generated. The study of erosion is based on research into processing techniques, which are the primary tools for using EDM. Empirical knowledge with subsequent optimization of technological parameters is one of the ways to obtain the required surface quality of the workpiece with defect minimization, as well as mathematical and numerical modeling of the EDM process. This article critically examines all key aspects of EDM, reflecting both the early foundations of electrical erosion and the current state of the industry, noting the current trends towards the transition of EDM to the 5.0 industry zone in terms of safety and minimizing the impact of the process on the environment.

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Section: Edm Process Physicsmentioning

confidence: 99%

Section: Edm Process Physicsmentioning

confidence: 99%

Section: Mathematical Description Of the Edm Process And Numerical Si...mentioning

confidence: 99%

Section: Numerical Simulation Of the Edm Processmentioning

confidence: 99%

Section: Numerical Simulation Of the Edm Processmentioning

confidence: 99%

See 3 more Smart Citations

Recent Trends and Developments in the Electrical Discharge Machining Industry: A Review

Kamenskikh,

Muratov,

Shlykov

et al. 2023

JMMP

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Identification of surface roughness parameters for the function-oriented description of EDMed surfaces

Hess,

Küpper,

Herrig

et al. 2024

Procedia CIRP

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Simulation research on the thermal phase transition of EDM and the formation mechanism of remelted layer in single pulse spark discharge crater

Chen,

Liu,

Luo

et al. 2024

Preprint

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The remelted layer formed by the Electrical Discharge Machine(EDM)impacts surface quality of small hole and significantly reduces the fatigue life of workpieces. Based on Comsol Multiphysics ,this paperusessimulates the formation process of the remelted layer under single-pulse condition. When horizontal set and two-phase flow methods are used to track the phase interface, the model is built under the coupling of flow and heat transfer fields, which simulates the solid-liquid-gas transformation during discharge etching via porous medium and weak expression methods. The simulation results show that the temperature rapidly decreases from the midpoint of the discharge center axis to the surrounding area, and the radius of the plasma region is 95.3 µm. The diameter of the pit is 108.5 µm. The thickness of the remelted layer is 16 µm. The thickness of the remelted layer obtained from experiments under the same conditions is 16.4um. The comparison shows that the difference between the two is small, indicating that the simulation model can accurately predict the thickness of the remelted layer, providing a new approach for evaluating the thickness of the remelted layer in EDM.

show abstract

Model Based Prediction of the Heat Affected Zone in a Steel Workpiece Induced by an EDM Single Discharge

Cited by 3 publications

References 17 publications

Recent Trends and Developments in the Electrical Discharge Machining Industry: A Review

Recent Trends and Developments in the Electrical Discharge Machining Industry: A Review

Identification of surface roughness parameters for the function-oriented description of EDMed surfaces

Simulation research on the thermal phase transition of EDM and the formation mechanism of remelted layer in single pulse spark discharge crater

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