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Electrolytic Machining Method for Electrolytic Machining of Tool Cathode with Variable Cross-section Micro-groove

A tool cathode and processing method technology, applied in the direction of processing electrodes, electric processing equipment, electrochemical processing equipment, etc., can solve the problems of inapplicability, micro-cutting is not suitable for high-strength and high-hardness materials, and difficult long-term processing, etc., to achieve High processing efficiency, good processing stability and wide processing range

Active Publication Date: 2020-12-25
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, micro-grinding, micro-cutting and micro-EDM will all cause wear and tear, and need to be trimmed in time, which is difficult to process for a long time, and micro-cutting is not suitable for high-strength and high-hardness materials; on the other hand, micro-EDM is Thermal processing, there will be thermal stress, not suitable for special occasions

Method used

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  • Electrolytic Machining Method for Electrolytic Machining of Tool Cathode with Variable Cross-section Micro-groove
  • Electrolytic Machining Method for Electrolytic Machining of Tool Cathode with Variable Cross-section Micro-groove
  • Electrolytic Machining Method for Electrolytic Machining of Tool Cathode with Variable Cross-section Micro-groove

Examples

Experimental program
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Effect test

Embodiment 1

[0046] The cathode of the tool for electrolytically machining variable-section micro-grooves according to the present invention includes insulating layers 1 and conductive layers 2, the conductive layers 2 and the insulating layers 1 are alternately arranged at intervals, and the processed end faces of the conductive layers 2 are covered by the The electrode 5 is formed by electrolytic machining, the processed end surface of the conductive layer 2 is in a curved shape or a planar shape, and the height of the conductive layer 2 is smaller than the height of the insulating layer 1; the cathode of the tool for the electrolytic machining of micro grooves with variable cross-section When closely attached to the workpiece 3, the insulating layer 1 is attached to the workpiece 3 but the conductive layer 2 has a gap with the workpiece 3, and the gap is a processing area.

[0047] Preferably, the cathode of the tool for the electrolytic machining of micro-grooves with variable cross-sec...

Embodiment 2

[0061] like Figure 1 to Figure 3 as shown, figure 1 It is the front view processing schematic diagram of the tool cathode of the electrolytic machining of variable cross-section micro-grooves in the second embodiment; figure 2 It is a side-view processing schematic diagram of the tool cathode for the electrolytic machining of variable cross-section micro-grooves in the second embodiment; image 3 It is a schematic diagram of the structure of the cathode of the tool for electrolytically machining micro-grooves with variable cross-sections in the second embodiment.

[0062] Place the tool cathode of the electrolytically processed micro-groove with variable cross-section consisting of the conductive layer 2 and the two insulating layers 1 above the electrode 5. In this embodiment, the electrode 5 is a A wedge-shaped metal plate, an electrolyte a channel is formed between the cathode of the electrolytically processed micro-groove with variable cross-section and the electrode 5...

Embodiment 3

[0064] like Figure 4 to Figure 6 as shown, Figure 4 It is the schematic diagram of the front view of the tool cathode for the electrolytic machining of the micro-grooves with variable cross-section in the third embodiment; Figure 5 It is a side-view processing schematic diagram of the tool cathode for the electrolytic machining of variable-section micro-grooves in Example 3; Image 6 It is a schematic structural diagram of the cathode of the tool for electrolytically machining micro-grooves with variable cross-sections in Example 3.

[0065] Place the tool cathode of the electrolytically processed micro-groove with variable cross-section consisting of the conductive layer 2 and the two insulating layers 1 above the electrode 5. In this embodiment, the electrode 5 is a A metal plate with a convex arc surface, an electrolyte a channel is formed between the electrolytic machining tool cathode with a variable cross-section micro groove and the electrode 5, and the conductive ...

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Abstract

The invention discloses a tool cathode for electrochemical machining of a micro groove with a variable cross-section and an electrochemical machining method of the tool cathode. The tool cathode comprises insulation layers and conducting layers. The conducting layers and the insulation layers are alternately arranged at intervals. The machining end faces of the conducting layers are subjected to electrochemical machining and forming by an electrode, the machining end faces of the conducting layers are in a curved surface or an inclined plane, and the height of the conducting layers is smallerthan that of the insulation layers. The tool cathode has the advantages of being good in machining stability, high in machining precision, wide in machining range and high in machining efficiency.

Description

technical field [0001] The invention relates to the technical field of electrolytic machining, in particular to an electrolytic machining method for electrolytic machining of tool cathodes with variable-section micro-grooves. Background technique [0002] In modern aerospace, automotive, photovoltaic, biochemical, electronics and other industries, in order to prolong the service life of parts that are subjected to severe stress and heat during use, more and more non-circular special-shaped cross-sections are used, that is, the cross-section is not Circular, but non-circular shapes such as ellipse, variable ellipse, cycloid, etc., such as the special-shaped pin hole design commonly used in modern piston manufacturing, which can avoid elastic deformation under high combustion pressure and reduce the pressure inside the pin hole. The problem of stress concentration makes the piston get better performance. In addition, the use of non-circular raceways in aero-engine roller bear...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H3/04B23H3/00
CPCB23H3/00B23H3/04
Inventor 李冬林伍毅杨树宝于秀娟
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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