Approach to Detect and Control Gap-Width with Peak Current in Pulse ECM

Wataru Natsu; Atsushi Terada

doi:10.4028/www.scientific.net/AMR.482-484.1973

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 482-484Approach to Detect and Control Gap-Width with Peak...

Approach to Detect and Control Gap-Width with Peak Current in Pulse ECM

Abstract:

In this study, in order to keep the feed rate of the tool electrode the same as the dissolution rate of the workpiece material in the pulse ECM, a method was proposed to detect and control the gap-width according to the relationship between the current waveform and the gap-width. First, the relationship between the current waveform and the gap-width was investigated experimentally. It was found that there is a correlation in the transient overshoot of the current waveform and the gap-width. Based on this correlation, a system used to detect and control the gap width during machining was developed. This system is composed of the circuit that detects the change in the current waveform and the algorithm that processes the detected signals from the circuit. The effectiveness of the gap-width detecting and controlling method was verified by experimental results.

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Periodical:

Advanced Materials Research (Volumes 482-484)

Pages:

1973-1978

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.482-484.1973

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Online since:

February 2012

Authors:

Wataru Natsu, Atsushi Terada

Keywords:

Control, Current Waveform, Detection, Gap-Width, Machining Accuracy, Pulse ECM

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References

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