Electrolytic machining method for machining inclined plane workpiece

Abstract

The invention discloses an electrolytic machining method for machining an inclined plane workpiece, the electrolytic machining method comprises the following steps that a cathode of an electrolytic machining device is fixed on a to-be-machined part of the workpiece by adopting a negative pressure adsorption structure, the to-be-machined part is an inclined plane, the horizontal height of a first channel on a first cavity is higher than that of a second channel on a second cavity, the second cavity is filled with electrolyte entering from the second channel firstly, then the machining gap between the cathode and the workpiece is filled with the electrolyte, then the electrolyte flows out from the first channel, so that it can be ensured that the machining gap between the cathode and the workpiece is full of the electrolyte, and the phenomenon that the cathode and the workpiece are short-circuited and the cathode is burnt out due to the fact that the machining gap cannot be filled with the electrolyte under the influence of gravity when the cathode is inclined under the condition that the electrolyte only flows into the machining gap from the electrolyte cavity of the cathode is avoided.

Description

technical field [0001] The invention belongs to the technical field of electrolytic machining, in particular to an electrolytic machining method for machining inclined-plane workpieces. Background technique [0002] In the process of electrolytic machining, when the workpiece is processed by the electrolyte passing through the inner cavity of the cathode, the cathode is generally in the vertical downward direction, the workpiece to be processed is located directly below the cathode, and the fluid flowing out of the cathode cavity The electrolyte fills the processing gap between the cathode and the workpiece, and a conductive path is formed between the cathode and the workpiece, so that the workpiece as the anode is dissolved. As the cathode continues to feed relative to the workpiece, the metal of the workpiece is continuously electrolyzed, and the electrolytic products are continuously washed away by the electrolyte. Finally, the gap between the cathode and the workpiece te...

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Problems solved by technology

[0003] When electrolytically machining a workpiece with an arc or an inclined surface, after the cathode corresponds to the processing position on the arc or inclined surface of the workpiece, the cathode is in an inclined position, and the electrolyte flowing out of the cavity inside the cathode is affected by gravity. Affected, it will flow down along the arc surface or slope of the workpiece, causing the electrolyte on the upper part of the cathode end surface corresponding to the workpiece to be less than the electrolyte on the lower part, that is, the electrolyte filled in the gap between the workpiece and the cathode is uneven. In this case, the processing speed of the lower end of the cathode facing the workpiece is greater than the processing speed of the upper end of the cathode facing the workpiece; when the cathode continues to feed, it will cause the upper end of the cathode to directly contact the workpiece, causing a short circuit, burning the cathode and the workpiece, Causes the loss of cathode and workpiece; and the flow rate of electrolyte discharged through the inner cavity of the electrode is relatively slow, the discharge efficiency of electrolysis products is low, and it is easy to accumulate in the electrolysis place of the workpiece, which affects the electrolysis effect and electrolysis progress

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