Electrode and machining device and method for electrolytic cutting rapid forming of turbine disc mortise

A technology for cutting electrodes and processing methods, applied in electric processing equipment, electrochemical processing equipment, processing electrodes, etc., can solve the problems of low efficiency, high cost, unstable quality, etc., achieve high efficiency, low cost, and solve processing accuracy. high effect

Active Publication Date: 2018-04-27
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to replace the traditional processing method, to solve the problems of low efficiency, high cost and unstable quality of turbine disk tenon and groove processing and its post-treatment process (edge ​​deburring and polishing and rounding processing), in order to effectively reduce the labor intensity , improve the processing quality of parts, and provide an electrode and processing device and method for rapid prototyping of turbine disc tenon and groove electrolytic cutting. Grooves for efficient, high-quality machining

Method used

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  • Electrode and machining device and method for electrolytic cutting rapid forming of turbine disc mortise
  • Electrode and machining device and method for electrolytic cutting rapid forming of turbine disc mortise
  • Electrode and machining device and method for electrolytic cutting rapid forming of turbine disc mortise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] An electrode for rapid prototyping by electrolytic cutting of turbine disk tongue and groove, its side view is shown in figure 1 (a), its front view is shown in figure 1 (b), wherein, in the figure, h is the height of the electrode of the rapid prototyping of the electrolytic cutting of the turbine disc tenon and groove, and d is the cross-sectional area of ​​the electrode of the rapid prototyping of the electrolytic cutting of the tenon and groove of the turbine disc;

[0056] The electrode for rapid prototyping of the turbine disk tenon and groove electrolytic cutting is a cutting electrode, which is used as a tool cathode on an electrolysis machine tool to perform rapid cutting and forming processing on the turbine disk tenon and groove, and its material is a copper-tungsten alloy material;

[0057] The cutting electrode is of a thin-walled structure, and its profile is designed into different mortise and groove shapes according to the mortise and groove of different...

Embodiment 2

[0091] An electrode for rapid prototyping by electrolytic cutting of turbine disk tenon and groove, its schematic diagram is shown in figure 2 , the electrode for rapid prototyping of the turbine disk tenon and groove electrolytic cutting is a cutting electrode, which is used as a tool cathode on an electrolysis machine tool to perform rapid cutting and forming processing on the turbine disk tenon and groove, and its material is stainless steel;

[0092] The cutting electrode is of a thin-walled structure, and its profile is designed into different mortise and groove shapes according to the mortise and groove of different turbine disk parts through clearance calculation, so as to meet its no-residue forming processing requirements;

[0093] The cross-sectional area d of the cutting electrode should ensure that the electrolyte can smoothly flow into the processing area after the cutting electrode enters the workpiece anode;

[0094] The height h of the cutting electrode is the...

Embodiment 3

[0116] An electrode for rapid prototyping by electrolytic cutting of a turbine disk tenon and groove is the same as that in Embodiment 2, except that the cutting electrode is multi-station. In this embodiment, the number of multi-stations is 11. 11 single-position electrodes as a whole structure.

[0117] A processing device for rapid prototyping by electrolytic cutting of a turbine disk tenon and groove, which is the same as that in Embodiment 2, except that the cutting electrode used is the electrode of this embodiment.

[0118] A processing method for rapid prototyping of turbine disk tenon and groove electrolytic cutting, the same as embodiment 2, the difference is that this embodiment adopts the processing device of this embodiment, and in the processing process, it is determined according to the turbine disk parts to be processed and the test The range of process parameters is:

[0119] Processing voltage U: 20V; processing current I: 50A; electrolyte composition: NaNO ...

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Abstract

The invention relates to an electrode and machining device and method for electrolytic cutting rapid forming of a turbine disc mortise, and belongs to the technical field of aero-engine turbine disc mortise electric machining. The electrode is a cutting electrode and is used for serving as a tool cathode on an electrolytic machine tool to carry out rapid cutting forming machining on the turbine disc mortise. The machining device adopting the electrode as the cutting electrode comprises a power source, a work box, a turbine disc part, the cutting electrode, a workpiece clamping and locating system and an electrolyte circulating system. The method adopting the device for cutting machining comprises the steps that equipment is mounted, alignment is carried out, a machining gap is adjusted, cutting machining is carried out, machining parameters are controlled in the machining process, after machining is completed, the turbine disc part is rotated to the next station in an indexing manner,and the process is repeated till electrolytic cutting machining of the whole turbine disc mortise is completed. The method adopts the cutting electrode for electrolytic cutting rapid forming, and through the electrolytic cutting rapid forming machining technological process, high-efficiency and high-quality machining of the turbine disc mortise is completed.

Description

technical field [0001] The invention relates to the technical field of electrical machining of turbine disk tenons and grooves of aero-engines, in particular to an electrode, a processing device and a method for rapid prototyping of turbine disk tenons and grooves by electrolytic cutting. Background technique [0002] The turbine disk is an important part of the aero-engine, and the turbine blades installed on it form the turbine rotor, which is the working part of the turbine engine that converts heat energy into mechanical energy. The working environment of the turbine disk is extremely harsh, and it is subjected to the impact of high temperature and high pressure gas, as well as the centrifugal force of the blade and itself, alternating cold and heat, stress cycle, vibration fatigue, etc. Therefore, the machining of the turbine disk requires high quality, high reliability, and anti-fatigue sex. The turbine disk is mainly composed of the disk body and dozens of fir tree-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H3/00B23H3/04B23H3/06B23H3/10B23H11/00
CPCB23H3/00B23H3/04B23H3/06B23H3/10B23H11/003
Inventor 于冰张军桓恒郑鑫陈东
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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