Study on the Gap Flow Simulation in EDM Small Hole Machining with Ti Alloy
Joint Authors
Zhang, Shengfang
Zhang, Wenchao
Liu, Yu
Ma, Fujian
Su, Chong
Sha, Zhihua
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-23, 23 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-28
Country of Publication
Egypt
No. of Pages
23
Abstract EN
In electrical discharge machining (EDM) process, the debris removed from electrode material strongly affects the machining efficiency and accuracy, especially for the deep small hole machining process.
In case of Ti alloy, the debris movement and removal process in gap flow between electrodes for small hole EDM process is studied in this paper.
Based on the solid-liquid two-phase flow equation, the mathematical model on the gap flow field with flushing and self-adaptive disturbation is developed.
In our 3D simulation process, the count of debris increases with number of EDM discharge cycles, and the disturbation generated by the movement of self-adaptive tool in the gap flow is considered.
The methods of smoothing and remeshing are also applied in the modeling process to enable a movable tool.
Under different depth, flushing velocity, and tool diameter, the distribution of velocity field, pressure field of gap flow, and debris movement are analyzed.
The statistical study of debris distribution under different machining conditions is also carried out.
Finally, a series of experiments are conducted on a self-made machine to verify the 3D simulation model.
The experiment results show the burn mark at hole bottom and the tapered wall, which corresponds well with the simulating conclusion.
American Psychological Association (APA)
Zhang, Shengfang& Zhang, Wenchao& Liu, Yu& Ma, Fujian& Su, Chong& Sha, Zhihua. 2017. Study on the Gap Flow Simulation in EDM Small Hole Machining with Ti Alloy. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-23.
https://search.emarefa.net/detail/BIM-1124883
Modern Language Association (MLA)
Zhang, Shengfang…[et al.]. Study on the Gap Flow Simulation in EDM Small Hole Machining with Ti Alloy. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-23.
https://search.emarefa.net/detail/BIM-1124883
American Medical Association (AMA)
Zhang, Shengfang& Zhang, Wenchao& Liu, Yu& Ma, Fujian& Su, Chong& Sha, Zhihua. Study on the Gap Flow Simulation in EDM Small Hole Machining with Ti Alloy. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-23.
https://search.emarefa.net/detail/BIM-1124883
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124883