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Column-shape revolving-body element external-surface micro-tissue electrolysic processing method

A processing method and technology of a rotary body, applied in the direction of electrochemical processing equipment, metal processing equipment, manufacturing tools, etc., to achieve the effect of low processing cost, high efficiency, and low processing environment requirements

Active Publication Date: 2007-11-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low-cost, high-precision and easy-to-operate processing method for the shortcomings of the existing micro-texture processing methods for the outer surface of cylindrical rotary parts

Method used

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  • Column-shape revolving-body element external-surface micro-tissue electrolysic processing method
  • Column-shape revolving-body element external-surface micro-tissue electrolysic processing method

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Embodiment Construction

[0019] The following describes the operation process of implementing the present invention-"the method for electrolytic machining of the micro-texture on the outer surface of cylindrical revolving body parts" in conjunction with specific examples.

[0020] The tiny grooves (fine texture) on the surface of the piston of an automobile engine can effectively store lubricating oil and reduce friction. In the process of electrolytic machining, it is proposed to adopt three times of electrolytic forming, that is, 1 / 3 of the outer surface of the piston is electrolytically machined each time. (Of course, other times of electrolytic forming can also be used). Combined with Figure 1, the specific processing implementation process goes through the following steps in sequence:

[0021] (1), using drilling technology, directly drilling a hole array with a diameter of tens of microns on the double-layer composite shielding film to obtain a flexible electrolytic shielding film (1);

[0022...

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Abstract

The invention provides a method of electrochemical machining to minuteness texture of column aspect tumbling body part exteriority, which belongs to electrochemical machining domain. The characteristic of the method is that it adopts machinery extrusion method to closely fit column aspect tumbling body part and flexible screened film which has the structure of micro hiatus. Electrolyze with the part as anode, and minuteness texture will be formed in the exteriority of column aspect tumbling body part. Simultaneously if uses double layer flexible electrolytic screened film which contents insulating layer and metallic layer, its metallic layer can be directly utilized as the electrolysis cathode. If uses the electrochemical machining method of this invention, minuteness texture can be formed in the exteriority of column aspect tumbling body part. It has the characteristics of manufacture precision high, the speed quick and the cost low and so on.

Description

technical field [0001] The method for electrolytic processing of the micro texture on the outer surface of a cylindrical revolving body part in the present invention belongs to the field of electrolytic processing. Background technique [0002] With the overall development of today's industrial technology, the problem of energy shortage is becoming more and more prominent. Reducing friction and wear between friction pairs can effectively save energy. Scientists generally believe that the fine texture on the surface of the friction pair can store lubricating oil, significantly reduce friction and reduce energy loss. The manufacturing technology of the micro-texture on the surface of the friction pair has attracted widespread attention of researchers at home and abroad. Curved surface friction pairs (such as between the piston / cylinder block and piston ring / cylinder block of the engine) are a kind of friction pair, and the processing of the surface micro-texture is much more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/14B23H3/00
Inventor 朱荻曲宁松李寒松王晓雷
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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