Thermo-fluid multi-physics modeling and experimental verification of volumetric workpiece material removal by a discharge pulse in electric discharge machining process

被引：6

作者：

Erdem, Oguz ^{[1
]}

Cogun, Can ^{[2
]}

Uslan, Ibrahim ^{[3
]}

Erbas, Murat ^{[3
]}

机构：

[1] Ahi Evran Univ, Dept Mech Engn, Kirsehir, Turkey

[2] Cankaya Univ, Mechatron Engn Dept, Ankara, Turkey

[3] Gazi Univ, Dept Mech Engn, Ankara, Turkey

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2020年 / 53卷 / 39期

关键词：

electric discharge machining; material removal; thermo-mathematical modeling; SURFACE INTEGRITY; THERMOPHYSICAL PROPERTIES; ENERGY-DISTRIBUTION; PLASMA DIAMETER; MAGNETIC-FIELD; EDM PROCESS; HEAT-FLUX; SIMULATION; POWDER; ALLOY;

D O I：

10.1088/1361-6463/ab9573

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The volume of material removed from the workpiece by a pulse (V-v) in the electric discharge machining was quantitatively determined using a multi-physics simulation model in ANSYS CFX software. Electrical heating is used in the model to simulate the plasma channel formation by defining the boundary and time-controlled current density initial conditions. Time-dependent physical properties at plasma temperature were used to reflect the actual processing environment. The heat was transferred from the plasma channel to the workpiece by electrical heating from the electrode, and V(v)was calculated by means of the amount of heat transfer. The calculated V(v)values for AISI4140, Ti6Al4V and Inconel 718 workpieces were lower than the experimental results and the difference was observed to change between 38.3% and 46.9%.

引用

页数：18

共 78 条

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