Charmilles Technologies S.a.

Agie Charmilles Sa

Secheron Sa

Meidensha Corporation

Claudio Tricarico

Roger Delpretti

Tarek Lamara

Jean-Claude Diot

Bjorn Fischer

Claude Rollet

Eric Orhant

Kosuke Hasegawa

Kenta Yamamura

Takaaki Furuhata

Fabrice Jaques

Marc Schaerrer

Hideki Komatsu

Guy Demule

Bernard Forel

Gerald Naville

Tetsuya Kanno

Nicolas Venzin

Björn Fischer

Martin Wasilewski

Dirk Cornelis Batelaan

A vacuum interrupter is equipped with a vacuum container and fixed and movable electrodes provided in the vacuum container. The vacuum container is constructed by hermetically respectively joining fixed-side and movable-side end plates to one and the other end portions of an insulating tube. The insulating tube is equipped at its end portion with a projection portion that projects in an axial direction of the insulating tube along an outer periphery of the insulating tube. The insulating tube is equipped at its end portion with an end plate joining portion that projects from a base end portion of the projection portion inwardly in a radial direction of the insulating tube. The end plate joining portion is equipped on its surface with a metallized layer to which the fixed-side or movable-side end plate is joined by brazing.

Vacuum interrupter

A vacuum interrupter () includes a tubular insulating case () extending along a longitudinal axis (AA), two conducting caps () each securely fixed at an open end of the tubular insulating case () at a sealing area () to form a tightly sealed chamber (). The vacuum interrupter is characterized in that the tubular insulating case () is shaped so as to enclose the conducting caps () and extend beyond the caps () along its longitudinal axis (AA).

Circuit interrupting device

The invention relates to electrical discharge milling machines using tool electrodes subject to longitudinal wear. The inventive discharge milling machine is equipped with a numerical controller executing at least one control cycle for compensating the wear considering the following steps:

Electrical discharge milling machine

A method and machine to allow for the spark-erosion machining of parts, in particular their finishing, using cylindrical or tubular tools by successive layers.

Method and machine for machining parts using spark-erosion milling

An electroerosion machining device to machine a piece ( ) by milling successive layers includes a member ( ) to drive in rotation an electrode-tool ( ) of tubular shape and a digital control unit (CN) to control the three-dimensional movement (x, y, z) between the electrode-tool and the piece ( ). A regulation module (MR) is adapted to simulate the longitudinal wear of the electrode-tool and to compensate it along its path. According to the type of geometric configuration between the electrode-tool and the piece, namely the presence or absence of an opening below the electrode-tool and the presence or absence of one or two walls, different values of longitudinal wear are provided and transmitted to the digital control unit (CN). There is thus obtained a high precision and planarity of machining.

Process and device for machining a three-dimensional piece by electroerosive milling

The invention proposes a method for determining the actual length of an electrode in an electrical discharge forming machine, wherein the electrode is brought in contact with a contact element. An electric short circuit is triggered at a trigger point during the additional movement of the electrode toward the contact element such that the position of the free electrode end is determined due to the known position of the trigger point. The machine control determines the length of the electrode that protrudes from the electrode holder from the position of the electrode holder and the position of the trigger point.

Measuring device and method for determining the length of an electrode

An apparatus for holding an electrode, in particular a cylindrical, tubular electrode in an electrical erosion machine, the electrode being held in a prismatic guide, wherein the electrode can be pressed by an elastic laminate against a prismatic guide.

Apparatus for holding an electrode for electrical erosion machines

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Nyon, Switzerland

Claudio Tricarico