Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
June 1, 1993Journal of Applied Physics

Theoretical models of the electrical discharge machining process. III. The variable mass, cylindrical plasma model

View Full Paper
Ask AI
Bookmark
Share

Authors

PEPhilip T. EubankMPMukund R. PatelMBMaría A. Barrufet

Discussion

Loading...

Member takes

Overview

Theoretical modeling study demonstrates sustained high spark temperatures and pressures in liquid-dielectric discharges, indicating superheating drives electrical discharge machining erosion.

Key Points

  • Develop a variable mass, cylindrical plasma model to simulate spark behavior in liquid media and identify the primary physical mechanism behind electrical discharge machining erosion.
  • Coupled three differential equations representing fluid dynamics, energy conservation, and radiation with a realistic plasma equation of state.
  • Implemented a thermophysical property subroutine incorporating dissociation and ionization heats for deionized water, using an electron balance to resolve initial zero-time boundary conditions.
  • Simulations demonstrated that high temperatures (≳5000 K) and high pressures (≳4 bar) persist in discharge sparks even across extended pulse durations up to ∼500 μs.
  • The sustained high temperatures and pressures provided quantitative evidence identifying superheating as the dominant physical mechanism driving material erosion in electrical discharge machining.

Cite This Study

Eubank et al. (1993) studied this question.

synapsesocial.com/papers/6aa223051200e6cee580d33dhttps://doi.org/10.1063/1.353942
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Physics-Based Modelling of Plasma-Material Interactions and Phase Transformations in Electrical Discharge Machining: A Computational Materials Perspective2026
  2. 2Advancements and challenges in modelling and simulations of micro-electrical discharge machining (micro-EDM): a review2026 · 1 citations
  3. 3Understanding the machined material’s behaviour in electro-discharge machining (EDM) using a multi-phase smoothed particle hydrodynamics (SPH) modelling2024 · 5 citations
  4. 4Comprehensive multi-physics modeling of thermally sustained microdischarges at atmospheric pressure: A coupled PIC/MCC–DSMC approach2026
  5. 5Dependence of Discharge Energy and Material Removal Dynamics on Tool Electrode–Workpiece Material Combinations in Electrical Discharge Machining2026