摘要:
An electrode holding and dispensing assembly for use with an electrical discharge machining apparatus. The assembly includes a guide rail having a channel formed therein and an electrode dispenser positioned to deliver electrodes to the channel. A slider is slidingly received in the channel for advancing electrodes delivered to the channel from the dispenser to an electrode seating site located in the channel, where the electrode is securely held during machining operations.
摘要:
A green compact electrode for discharge surface treatment used for discharge surface treatment for generating discharge between a work and a green compact electrode obtained by pressuring and compacting a metal powder or a powder of a compound metal, and using the discharge energy forming a coating of an electrode material or a substance obtained through a reaction of the electrode material with the discharge energy on the work surface; the electrode is obtained by mixing a soft metal powder as a bonding agent with the metal powder or the compound metal powder, and pressuring and compacting the mixed powder.
摘要:
A method of making a honeycomb extrusion die by a) providing a die body incorporating an inlet face, a discharge face opposite the inlet face, a plurality of feedholes extending from the inlet face into the body, and an intersecting array of discharge slots extending into the body from the discharge face to connect with the feed holes at feed hole intersections within the die, the intersecting array of discharge slots being formed by side surfaces of an array of pins; b) providing an electrical discharge electrode of equal size to the die body and having multiple rows of parallel-aligned tabs; c) lowering the electrical discharge electrode into the array of pins on the discharge face of the die body; and, d) reducing alternate pins symmetrically in size by plunge electrical discharge machining to form an array of pins varying in size on the discharge face of the die body.
摘要:
An electric discharge machine includes a machine base configured to support a work piece, a y-axis alignment assembly having a first direction of travel and mounted to the machine base, and an electrode alignment assembly mounted to the machine base and configured to hold an electrode during a machining process. The electrode alignment assembly has a second, a third, and a fourth direction of travel, and an attached rotary indexer has a fifth direction of travel. Movements in the first, second, third, fourth, and fifth directions of travel are automatically controlled by a processor.
摘要:
A layered anisotropically conductive element, a resistant element, and a feed element constitute an electrode for discharge machining. The layered anisotropically conductive element includes high conductivity layers and low conductivity layers alternately laminated on each other, the high conductivity layers and the low conductivity layers being made of thin metallic plates coated with an insulating film. The layered anisotropically conductive element has an anisotropic conductivity, in which the conductivity in a direction parallel to the low conductivity layers is much higher than that in a direction perpendicular to the low conductivity layers. The resistant element is connected to one of end surfaces of the layered anisotropically conductive element perpendicular to the layers. The feed element is connected to the resistant element.
摘要:
The invention concerns a high-strength erosion electrode having good electrical conductivity. The erosion electrode is made up of a steel core, an intermediate layer of copper or a copper-containing alloy, and an outer layer containing at least 40 % zinc. The steel core has a patented structure which contains between 0.6 and 1 wt. % carbon and occupies an area corresponding to between 50 and 75 % of the erosion electrode diameter, the intermediate layer occupying an area of between 5 and 40 % of the total diameter, the outer layer occupying an area of between 10 and 30 %, and the zinc content of the outer layer being between 40 and 60 wt. %.
摘要:
A green compact electrode for discharge surface treatment comprises a main body of green compact electrode obtained by pressuring and compacting metal powder or powder of a metal compound, or either of the two types of powder with ceramics powder added thereto; and a metallic die used for pressuring and compacting the main body of the green compact electrode, and is used for discharge surface treatment together with the die without taking out the main body of green compact electrode from the die.