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Electrochemical processing method for tri-end flexible feeding blade

A processing method and feed direction technology, which is applied in electrochemical machining equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of low machining accuracy, low efficiency, and inability to complete all-round electrolytic machining of airfoils. The effect of side clearance

Inactive Publication Date: 2008-04-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of the blade electrolytic machining technology, such as fixed feed direction, inability to complete all-round electrolytic machining of blade body, edge plate and air inlet (exhaust) edge, low machining accuracy, low efficiency, etc., to provide A three-axis flexible feed blade electrolytic machining method

Method used

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  • Electrochemical processing method for tri-end flexible feeding blade
  • Electrochemical processing method for tri-end flexible feeding blade
  • Electrochemical processing method for tri-end flexible feeding blade

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Embodiment Construction

[0030] As shown in Figure 1, the three-axis feed blade electrolytic machining machine tool includes a machine tool platform 1, an anode spindle 2, an anode fixture 3, an electrolytic machining fixture 4, a cathode spindle 5, a leaf basin cathode 6, and a leaf back cathode 30, which constitute Machine tool body. The electrolyte circulation system of the machine tool is composed of two ball valves 7, a liquid tank 8 filled with electrolyte, two-stage filters 12, 18, two check valves 13, stainless steel multi-stage centrifugal pump 14, stop valve 16 and pipelines. Electrolyte for processing and discharge electrolysis products. The heater 9 is controlled by a thermocouple 10 and a temperature controller 11 to heat the electrolyte in the liquid tank 8 .

[0031] As shown in Figures 2 and 3, the main body of the three-axis flexible feed blade electrolytic machining fixture 4 is made of insulating materials, such as epoxy resin, glass fiber reinforced plastic, and the like. The mai...

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Abstract

The present invention relates to an electrolytic machining method of a three-start flexible feed lamina, belonging to electrolytic machining field. It adopts a blade basin cathode and a blade back cathode of automatic feed set in the same axes oppositely and an automatic feed anion vertical to the cathode. The blade roughcast connects with the anion via a clamp. In processing, the blade basin cathode, the blade back cathode and the anion feed simultaneously with adjustable feed speed in order to guarantee optimal feed angles or optimal feed curves for processing to the blade basin and the blade back. To the blade with relatively big torsion degree to the molding surface, sectional feed method can be used. The method can realize once molding of the blade body, marginal plate and inlet(outlet) edges and omnibearing electrolytic machining in order to improve blade machining precision and surface quality. Meanwhile, the present invention also provides a novel electrolyte feed method, which means to make the electrolyte flow along the blade marginal plate, blade body and tip and finally return to electrolyte flume. In this way, it can stabilize the flow field and further improve machining quality.

Description

technical field [0001] The electrolytic machining method for a three-axis flexible feed blade of the invention belongs to the technical field of electrolytic machining. Background technique [0002] Electrolytic machining is a special processing technology, which is a processing method that uses the principle of electrochemical anodic dissolution to remove materials. It has the outstanding advantages of fast processing speed, good surface quality, no loss of tools, no restrictions on material strength, toughness, hardness, etc., and no macro cutting force. It has been widely used in aerospace, weapons, automobiles, molds and other industries. . Especially in the manufacturing process of aeroengine blades, due to the continuous development of blade materials in the direction of high strength, high hardness, and high toughness, and the application of new materials such as titanium alloys and high-temperature heat-resistant alloys, electrolytic machining technology has shown i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H3/00
Inventor 朱荻徐正扬史先传
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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