SU680845A1

SU680845A1 - Method for dimensional electrochemical machining of workpieces like bodies of revolution

Info

Publication number: SU680845A1
Application number: SU762314313A
Authority: SU
Inventors: Валерий Алексеевич Зюзин; Александр Александрович Корчагин
Original assignee: Предприятие П/Я М-5373
Priority date: 1976-01-12
Filing date: 1976-01-12
Publication date: 1979-08-25

Description

II

Изобретение относитс к электрофизическому и электрохимическому мето дам обработки.The invention relates to electrophysical and electrochemical processing.

Известен способ размерной атектрохимической обработки деталей типа тел вращени 1.There is a method for dimensional atrochemical processing of parts such as bodies of revolution 1.

Известен способ размерной электрохимической обработки деталей типа тел вращени по схеме точени с использованием электрода-инструмента с рабочей поверхностью в виде сектора при изменении его площади в зависимости от условий обработки 2.A known method of dimensional electrochemical machining of parts such as rotation bodies using a turning scheme using an electrode tool with a working surface in the form of a sector changes its area depending on the processing conditions 2.

Недостатком известного способа вл етс ограниченность его применени и невозможность- выравнивани припуска по площади обрабатываемой детали.The disadvantage of the known method is the limited application thereof and the impossibility of leveling the allowance over the area of the workpiece.

Целью изобретени л етс расширение технологических возможностей способа обработки,The aim of the invention is to expand the technological capabilities of the processing method,

Это достигаетс тем, что изменение площади сектора осуществл етс за счет того, что центральный угол сектора, обхватьюающий на соответствующем радиусе вращени контур обрабатываемой детали, задают пропорциональным величине припуска на обработку на данном радиусе.This is achieved by changing the area of the sector due to the fact that the central angle of the sector, which, at the appropriate radius of rotation, wraps around the contour of the workpiece, is set proportional to the amount of allowance for processing at that radius.

На фиг. 1 изображена схема реализйции способа; на фиг. 2 - электрод-инструтцент дл реализации способа.FIG. 1 shows a scheme for the implementation of the method; in fig. 2 - electrode-toolkit for the implementation of the method.

На фиг. 1 и 2 даны следующие обозначени : 1 - деталь, 2 - электрод-инструмент , 3 - проекци электрода-инструмента на поверхность обрабатываемой детали, 4 - диэлектрический экран.FIG. 1 and 2, the following designations are given: 1 — part, 2 — electrode-tool, 3 — projection of the electrode-tool onto the surface of the workpiece, 4 — dielectric screen.

Способ осуществл етс следующим образом.The method is carried out as follows.

Claims

During processing, the profile of the contour of the cathode working surface is changed. This reduces the undesirable effects associated with the complexity of the profile of the interelectrode channel, increases the accuracy of shaping and expands the technological possibilities of the method of shaped electrochemical machining. aa oy6ro {alina of the path traveled by the vtsoaz –a @ tvl1} sites at the cathode, the angular velocity of relative rotation; The distance from (the surface area to be operated is up to the rotation, due to different differences, in terms of B..YV (Bg h is the arc length of the corresponding section of the cathode). Telling that -., t is the duration of the anodic solution; metal layer} is an anodic dissolution layer, and, specifying the required size of the removed layer for a turn, corresponding to the profile of the contour of the working surface, we obtain: mR-Z where the metal layer to be dissolved per revolution (allowance). Each point of the conveying surface at the npoQecce of the anodic dissolution successively passes all points above the Hz, and with a considerable length of the interelectronic channel, the value of the local dissolution rate at each point above BK can differ from one another. In order to increase the accuracy of the shaped shape, for the value of V, its average value is taken as the arc BK t located at a distance from the axis of the turnaround {Vj). BfJeMH process; M - the total number of revolutions. The contour of the cathode working surface will be determined by g-z К-vlT where k is the coefficient of prod-rationality. If you change the contour of the profile of the cathode surface within each revolution, then due to the different duration of stay in the treatment area of each point of the processed surface located above, conditions are created for the variable removal of metal in direction 6. (. , partial burning of the working surface of the electrode-tool 2 with the dielectric material 4. Therefore, along with an increase in the accuracy of the shaped form-forming material, it is assumed that The chemical possibilities of shaped shaping during aptro-chemical processing under the turning scheme due to the occurrence of variable metal removal in the circumferential area. a tool with a working surface in the form of a sect {fa when replacing it with a raft of a spade depending on the processing conditions, characterized in that, in order to expand technological capabilities, This is due to the fact that the center angle of the sector, covering the contour of the workpiece at the corresponding radius of rotation, is set proportional to the value of the allowance for processing at a given radius. Sources of information taken into account during the examination 1. USSR author's certificate No. 511393, cl. From 25 and 17 / GS, 1975.

2. USSR author's certificate number 553O77, cl. B 23 P 1/07, 1973.

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