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Spacing track optimizing method of tool electrode for electrolytic machining of integral wheel

A technology for integral impellers and processing tools, which is applied in the direction of electrochemical processing equipment, manufacturing tools, metal processing equipment, etc., and can solve the problems of low processing efficiency, large processing allowance, and high processing cost of the channel between impeller blades

Inactive Publication Date: 2009-08-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0006] The purpose of the present invention is to propose a spatial trajectory optimization method for the electrodes of the integral impeller electrolytic machining tool in view of the shortcomings of the current integral impeller interblade channel, such as low processing efficiency, high processing cost, large machining allowance or poor uniformity.

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  • Spacing track optimizing method of tool electrode for electrolytic machining of integral wheel
  • Spacing track optimizing method of tool electrode for electrolytic machining of integral wheel
  • Spacing track optimizing method of tool electrode for electrolytic machining of integral wheel

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Embodiment Construction

[0059] like figure 1 , 2 As shown, during processing, the integral impeller blank (anode) 7 is connected to the positive pole of the power supply 9, and the tool electrode (cathode) 2 is connected to the negative pole of the power supply 9. The tool cathode 2 moves along the straight line L under the control of the translation table 1 of the machine tool 0 at speed V 1 Linear feed, the cathode rotation transmission device 5 drives the tool cathode 2 around the straight line L 1 Rotation, so the tool cathode 2 realizes simultaneously along the line L 0 at speed V 1 Linear feed and around the straight line L 1 at angular velocity V 2 rotate. The impeller blank 7 at a certain angular velocity V 3 around its own axis L 0 Rotate, the tool cathode 2 and the impeller blank 7 are continuously fed, and keep a small gap (about 0.5mm). The temperature controller controls the heater to heat the electrolyte and maintain a constant temperature. The electrolyte enters the filter fo...

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Abstract

The invention relates to a space trajectory optimization method of an integral impeller electrolytic processing tool electrode and pertains to the field of electrolytic processing technology. In the processing, a tool electrode is linearly fed along the axis of an integral impeller rough cast at a certain speed V1 and rotates around a straight line in parallel with the axis of the impeller rough cast at a certain speed V2; meanwhile, the self axis of the impeller rough cast rotates at a certain angle speed V3. In the processing, the tool electrode is connected with the cathode of a power supply and the impeller rough cast is connected with the anode of the power supply; the electrolyte flows in from one end of the tool electrode and flows out from the clearance of the electrode; the impeller rough cast is continuously eroded and finally a nearly molded inter-impeller channel is obtained. According to the specific situation, different combinations of V1, V2 and V3 can be selected; according to the speed arbitration guideline of the invention, the space trajectory of the tool electrode is optimized and the inter-impeller channel has small margin and fine uniformity. The method is also applicable to the simultaneous processing of a plurality of electrodes, thus greatly increasing the processing efficiency.

Description

technical field [0001] The invention discloses a method for optimizing the spatial trajectory of an electrode of an electrolytic machining tool for an integral impeller, belonging to the technical field of electrolytic machining. Background technique [0002] The integral impeller is one of the important parts in rocket engines, aero-engines and aviation airborne equipment. The machining accuracy, machining quality and machining efficiency of the integral impeller have an important impact on the performance, quality and cost of the product. Before machining the blade surface of the integral impeller to the design requirements, the processing of the interblade channel of the integral impeller is an indispensable process. Electrolytic machining has the advantages of wide processing range, good surface quality, high production efficiency, no macro cutting force and no loss of tool cathode. In the processing of the overall impeller, electrolytic machining has shown great advant...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H3/00
Inventor 徐庆朱荻刘嘉李寒松
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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