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Modeling of Interelectrode Gap in Electric Discharge Machining and Minimum Variance Self-Tuning Control of Interelectrode Gap
Joint Authors
Li, Shujuan
Xin, Bin
Gao, Ming
Feng, Bin
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-09
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
In the electric discharge machining system, the determination of the gap between the anode and the cathode is a difficult point of this kind of machining approach.
An accurate mathematical model of interelectrode gap is obtained, and the precise control of the gap is achieved on this basis.
In this paper, based on the example of discharge machining of P-type single crystal Si, the theoretical analysis proved that the discharge channel can be equivalent to pure resistance, and the physical model of the interelectrode gap and voltage and current was established.
The order and parameters of the EDM system model were determined by adopting the system identification theory.
We designed the minimum variance self-correcting controller to accurately control the interelectrode gap in combination with the actual machining process.
Experimental results show that the interelectrode gap model can correctly reflect the interelectrode gap in the actual machining process; the minimum variance self-correcting controller eliminates the short circuit phenomenon during processing and can stably track different desired gaps; the material removal rate and the surface roughness decrease with the increase of the interelectrode gap.
American Psychological Association (APA)
Xin, Bin& Gao, Ming& Li, Shujuan& Feng, Bin. 2020. Modeling of Interelectrode Gap in Electric Discharge Machining and Minimum Variance Self-Tuning Control of Interelectrode Gap. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1196103
Modern Language Association (MLA)
Xin, Bin…[et al.]. Modeling of Interelectrode Gap in Electric Discharge Machining and Minimum Variance Self-Tuning Control of Interelectrode Gap. Mathematical Problems in Engineering No. 2020 (2020), pp.1-20.
https://search.emarefa.net/detail/BIM-1196103
American Medical Association (AMA)
Xin, Bin& Gao, Ming& Li, Shujuan& Feng, Bin. Modeling of Interelectrode Gap in Electric Discharge Machining and Minimum Variance Self-Tuning Control of Interelectrode Gap. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1196103
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1196103