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Cathode tool for machining reducing round hole in conductor material and machining method

A technology of conductor materials and cathodes, applied in the supply of processing working media, manufacturing tools, metal processing equipment, etc., can solve the problems of poor hole wall surface quality and processing difficulties, and achieve simple structure, high surface quality, and easy processing Effect

Active Publication Date: 2020-12-11
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a cathode tool and a processing method for processing variable-diameter round holes in conductor materials, so as to overcome the problems of processing difficulties and poor surface quality of hole walls in the prior art

Method used

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  • Cathode tool for machining reducing round hole in conductor material and machining method
  • Cathode tool for machining reducing round hole in conductor material and machining method
  • Cathode tool for machining reducing round hole in conductor material and machining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, see figure 2 A method for processing a circular hole in a conductor material using the above-mentioned cathode tool, comprising the following steps:

[0029] 1. The outer diameter of the tube electrode is d, and the inner diameter of the tube electrode is 0.8d. On the surface of the tube electrode, a spiral groove is processed. The pitch of the spiral groove is s, and the groove width is k. In this embodiment, the spiral groove on the cathode tool The pitch s and slot width k are the same;

[0030] 2. The conductor workpiece processed with a cylindrical hole with an inner diameter of D is fixed in the machine tool workbench. The height of the selected tube electrode is greater than the height of the cylindrical hole. Under the action of the machine tool fixture, the cathode tool is placed in the cylindrical hole of the conductor workpiece. middle;

[0031] 3. The voltage of the DC power supply is 10V-20V, the tube electrode is connected to the cathode of t...

Embodiment 2

[0033] Embodiment 2, described method is the same as embodiment 1, and difference is that increased groove width k, as image 3 As shown in (a); or reduce the pitch s, such as image 3 As shown in (b), the effective working area of ​​the tube electrode can be reduced. If the effective working area of ​​the tube electrode is reduced, the material removed from the workpiece will be reduced under the same conditions, so when such a tube electrode is used to process a cylindrical hole, the obtained hole diameter will also be reduced.

Embodiment 3

[0034] Embodiment 3, reducing the groove width of the helical groove or increasing the pitch of the helical groove can increase the effective working area of ​​the tube electrode. When the effective working area of ​​the tube electrode increases, the material removed from the workpiece will also increase under the same conditions, so when such a tube electrode is used to process a cylindrical hole, the obtained hole diameter will also become larger.

[0035] Through Examples 2 and 3, it can be found that if the aperture to be processed is larger, a spiral groove with a large pitch and a small groove width can be processed on the surface of the tube electrode; on the contrary, if the aperture to be processed is smaller, it can be processed in The surface of the tube electrode adopts a spiral groove with a small pitch and a large groove width. Therefore, by changing the pitch s and groove width k of the spiral groove, the effective working area of ​​the tube electrode can be cha...

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Abstract

The invention relates to a cathode tool for machining a reducing round hole in a conductor material and a machining method. The problems that in the prior art, machining is difficult, and the surfacequality of a hole wall is poor are solved. The machining method comprises the following steps that S1, the outer diameter of a pipe electrode is D, the inner diameter of the pipe electrode is 0.8d, and a spiral groove is machined in the surface of the pipe electrode; S2, a conductor workpiece with a cylindrical hole with the inner hole diameter being D is fixed in a machine tool workbench, and under the action of a machine tool clamp, the cathode tool is placed in the cylindrical hole of the conductor workpiece; S3, the pipe electrode is connected with the cathode of a power source, the workpiece is connected with the anode of the power source, a working solution and deionized water are mixed into a solution, and the working solution is injected from the top of the pipe electrode and flowsout from the bottom of the pipe electrode and the spiral groove; and S4, machining is started, the pipe electrode rotates at a constant speed, the cylindrical hole is subjected to electrolytic machining through the effective working part left after the spiral groove is removed from the surface of the pipe electrode, the material on the inner wall of the hole is dissolved and removed, and the inner diameter of the hole is increased.

Description

technical field [0001] The invention belongs to the technical field of conductor material processing, and in particular relates to a cathode tool and a processing method for processing variable-diameter circular holes in conductor materials. Background technique [0002] Deep hole processing technology plays a very important role in the field of mechanical processing. With the development of science and technology, parts with high strength and high hardness that are difficult to process deep holes are widely used in aerospace, medical equipment and other fields, for example, aeroengines The material of the turbine blades is mainly nickel-based high-temperature alloys, and film cooling holes are processed on the blades to improve the high temperature resistance of the blades. Each combustion chamber of a high-performance aero-engine contains up to 100,000 film holes. At the same time, in order to optimize the cooling effect to the greatest extent, on the basis of traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H9/14B23H3/00B23H3/10
CPCB23H9/14B23H3/00B23H3/10
Inventor 武小宇
Owner XIAN TECHNOLOGICAL UNIV
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