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Electrolysis shaping method of TC4 titanium alloy turbine blade repairing layer

A technology of turbine blades and titanium alloys, applied in metal processing equipment, electrochemical processing equipment, manufacturing tools, etc., can solve problems such as electrolytic machining genetic errors, affecting final accuracy, and deteriorating repair accuracy, achieving good reliability and repeatability. Accuracy and reliability, the effect of uniform and flat contours

Inactive Publication Date: 2018-05-15
佛山租我科技有限公司
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Problems solved by technology

On the other hand, electrolytic machining has a genetic error effect, and the uneven morphology after surfacing repair greatly affects the final accuracy of the workpiece after modification
Therefore, when the traditional design of the cathode is used to electrolytically modify the uneven surfacing layer, overcut defects will appear on the edge of the surfacing layer, deteriorating the repair accuracy

Method used

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  • Electrolysis shaping method of TC4 titanium alloy turbine blade repairing layer
  • Electrolysis shaping method of TC4 titanium alloy turbine blade repairing layer

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Embodiment Construction

[0017] In order to allow those skilled in the art to understand the present invention more clearly and intuitively, the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as Figure 1-2 Shown is a preferred embodiment of the invention.

[0019] An electrolytic modification method of a TC4 titanium alloy turbine blade repair layer, comprising the steps of:

[0020] S1. Establish an electrolytic machining system

[0021] The self-made electrolytic machining system was used in the experiment, such as figure 1 shown. The system is equipped with a power supply system 1 for DC processing, the output voltage is 0-24V, the maximum output current is 2000A, and it has a short-circuit protection control function. The integrated control of power supply system 1, electrolyte circulation system 2 and machine tool displacement platform system 3 can realize automatic control and signal acquisition of parameters such as voltage, c...

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Abstract

The invention discloses an electrolysis shaping method of a TC4 titanium alloy turbine blade repairing layer. The method includes the steps of S1, building an electrolysis processing system which comprises a power system, an electrolyte circulating system, an electrolytic cell, a displacement platform, a cathode system and a control system, wherein the circulating pipe of the electrolyte circulating system is connected with the electrolyte inlet and the electrolyte channel of the cathode system, and the positive pole and the negative pole of the power system are connected with the cathode system; electrolyte is a 18% sodium chloride solution, and the rotation speed of an electrolyte circulating pump is 1800r / minute; S2, processing, to be more specific, using a TC4 titanium alloy sheet after sheet edge micro-arc build up welding as the turbine blade sample, using an epoxy resin insulating layer to protect the non-repairing face of the turbine blade, and placing the turbine blade samplein the channel of the cathode system to perform electrolysis repairing. The electrolysis shaping method has the advantages that an improved cathode process is used to perform electrolysis shaping on abuilding up welding repairing blade tip, the shaping time of the single blade is 80 seconds, and good reliability is achieved.

Description

technical field [0001] The invention relates to an electrolytic modification method for a TC4 titanium alloy turbine blade repair layer. Background technique [0002] As the core component of an aero-engine, the degree of damage to the turbine blades directly affects the efficiency and safety of aircraft operation, so damaged turbine blades must be replaced or repaired. Since the turbine blade material is a high-strength hardened material, the cost is relatively high, so repairing the damaged turbine blade has extremely high technical and economic value. At present, the turbine blade repair process chain mainly includes two steps: surfacing welding to fill defects and subsequent modification to restore design accuracy. Predecessors have done a lot of research on the use of surfacing welding technology to repair aeronautical components, and the research on subsequent modification mainly focuses on the improvement of traditional modification technology (grinding, milling or E...

Claims

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Application Information

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IPC IPC(8): B23H3/00B23H9/10
CPCB23H3/00B23H9/10
Inventor 岑锦潮
Owner 佛山租我科技有限公司
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