Model-Based Pulse Frequency Control for Micro-EDM Milling Using Real-Time Discharge Pulse Monitoring  

Oleh:

Jung, Jae Won ; Jeong, Young Hun ; Min, Byung-Kwon ; Lee, Sang Jo

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 130 no. 3 (Jun. 2008), page 031106.
Topik: Micro-EDM; Electrode Wear; Discharge Pulse Counting; Real-Time EDM Process Control

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.11 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Because electrode wear in microelectrical discharge machining significantly deteriorates the machining accuracy, the electrode wear msut be compensated in process to improve the geometric accuracy of the product. Therefore, there has been a substantial amount of research on electrode wear and the compensation for EDM processes. In this study, a novel control method for a micro-EDM process using discharge pulse counting is proposed. The method is based on the proportional relationship between the removed work-piece volume and the number of discharge pulses. A model-based control was designed using the relationship between the pulse frequently and gap distance, and implemented in an actual micro-EDM system. Experimental results demonstrated that the developed method makes two- and three-dimensional micro-EDM milling processes fast and accurate with without complex path planning to compensate electrode wear.

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