期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 187, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2022.122563
关键词
Finite element method; Molecular dynamics; Flow field; Modeling; Heat transfer; Electric discharge machining
资金
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01G167]
- National Natural Science Foundation of China [U2004169]
- Scientific and Technological Innovation Team of Colleges and Universities in Henan Province [20IRTSTHN015]
This study provides a systematic review of the progress in modelling the electrical discharge machining (EDM) process. It compares and analyzes the existing finite element method (FEM) models, molecular dynamics (MD) models, and flow field models, and suggests future research areas of interest.
Electrical discharge machining (EDM) is a machining method for cutting hard metals to produce complex shapes and deep holes through arc erosion, and has become a popular machining method. Modelling the EDM process requires multiple model types to simulate the process. This study systematically reviews the progress of EDM process modelling. First, existing EDM finite element method (FEM) models including single-spark simulations, multi-spark simulations, hybrid machining simulations, and machining for non-conductive advanced ceramics are analyzed from the modeling to the simulation application. Second, the material removal mechanism, machining process simulation, and machining performance are reviewed in the application of the molecular dynamics (MD) models. Third, simulation applications including discharge channel characteristics, debris and bubble movement, and liquid-phase electrodes in the flow field models are compared and analysed. The FEM, MD and flow field models are compared in terms of similarity, individuality and complementarity, and the relevant research areas that may attract attention in the future are put forward. (c) 2022 Elsevier Ltd. All rights reserved.
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