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Guide for EDM machines– High precision guide for EDM machine with decisive accuracy of precision of EDM machine.

High precision guide for EDM machine with decisive accuracy of precision of EDM machine.

Guide for EDM machine is used for a wire-cut EDM machine and a small hole type of EDM machine which are used for machining mechanical parts with high precision, jigs and tools of alloy carbide.

Wire cut EDM machine is a precision processing machine to cut a work piece to a designated shape by producing a minute arc discharge between wire electrodes issued from a bobbin at a designated speed and conductive work piece in working fluid (water or oil) with controlled resistance value.
Small hole type of EDM machine is a machine to perforate a hole by producing arc discharge between an electrode pipe or tip end of rod and a work piece in working fluid (water or oil).
Both EDM machines are utilized for processing not only tungsten carbide (one of alloy carbide), but also the hardest sintered diamond as far as the work piece is conductive for constant removing-processing with high temperature by arc discharge.

To keep processing precision of EDM machine, it is necessary to restrain vibration and fluctuation (position shifting) of wire electrode and pipe/rod electrode, so that the guide for EDM is used to hold electrodes near work piece.

OGURA contributes to improvement of precision in precision machining industry by offering guides of diamond, sapphire, ruby and ceramics through joint-development with manufacturers of EDM machines.

Guide for wire EDM machine

High precision guide for high accuracy of processing of wire EDM machine.

Guide for wire EDM machine

The guide is to hold a wire electrode for wire EDM machine with high level of precision. In order to hold constantly supplied wire electrode for thousand hours, a diamond is used as it has insulating and excellent abrasion resistant properties.

High precision machining of hole-shapes in accordance with size of used wire electrodes and polishing with high quality for smooth running of wire electrodes are applied to diamond.

Well-polished up inner surface of hole can be continuously used by restraining sludge at the time of EDM processing at the minimum level and also by simple washing.
Diamond (main guide) is put between ceramics or ruby parts (sub guide) as guide to insert wire electrode and incorporated into stainless parts.

OGURA’s guide for EDM machine is evaluated the highest in the industry and provided as OEM parts to many EDM machine manufactures.

Features

  • Hold a wire electrode for a long time by using a perforated single crystal diamond with high precision.
  • Machining of inner surface of diamond holes for smooth running of wire electrodes.
  • OGURA assembles and/or processes following each part; a main guide of diamond, a sub guide in inserting wire electrodes and a stainless metals to be installed to EDM machines.

Guide for small hole type of EDM machines

This is a guide to hold electrodes of small hole type of EDM machines with high precision.

Guide for small hole type of EDM machines

This is the guide to hold electrodes used to small hole type of EDM machine at high precision.
The guide with processing perforation with high precision contributes to high precision machining by small hole type of EDM machines.

For guide parts to hold electrodes, ceramics, sapphire and ruby are used as they are abrasion resistant, insulating and have low friction coefficient.
The guide is incorporated to stainless metal parts in accordance with model types of small hole type of EDM machines.
By polish-finishing inner surface of hole, electrodes are supported for smoothly running. And the guide restrains sludge contents at minimum which are made when operating EDM machines.

Recently hole diameter to be processed has become very small, OGURA is offering guides for small hole type of EDM machines with electrodes with less than φ0.1mm diameter.

Properties

  • Smooth running by processing hole's surface of a guide at high precision.
  • Ceramics, sapphire and ruby are used as they are abrasive resistant, insulating and have low friction coefficient.
  • Guide for small hole type of EDM machine is available to cope with electrodes with less than φ0.1mm diameter.

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