Development of Micro-EDM using Magnetic Levitation Actuator

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Other Title
  • 磁気支持型駆動装置による高速微細放電加工モジュールの開発
  • ジキ シジガタ クドウ ソウチ ニ ヨル コウソク ビサイ ホウデン カコウ モジュール ノ カイハツ コウソク コウセイド イチギメ セイギョケイ ノ セッケイ ト カコウ ジッケン ニ ヨル ケンショウ
  • - Design of High Response and Precision Position Controller with Experimental Verification -
  • －高速高精度位置決め制御系の設計と加工実験による検証－

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Abstract

This paper discusses new actuators and controllers for micro-EDM. The authors propose 2 types of magnetic levitation actuators for micro-EDM and have designed a feed-forward and sensor compensator controller for the system. The practicality of the system was verified through experimentation, in which tracking error of ±1μm was proven. The gap controller designed consists of a micro-EDM module and a conventional drive unit to complement the stroke of the micro-EDM module. It has been confirmed that the new actuators and controllers have saved machining time, improved machined surface and reduced electrode wear.

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