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Step and zone type integral impeller electrolytic processing process and device

An integral impeller and processing device technology, which is applied in electrochemical processing equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of low machining accuracy, over-cutting or under-cutting of blade roots, etc., to save preparation time, shorten cycle time, The effect of high work efficiency

Inactive Publication Date: 2010-07-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] Aiming at the problem of integral impeller blade machining, the present invention proposes a high-efficiency and high-precision blade electrolytic machining process and a matching processing device, which are used to solve the problems of blade back, blade The machining accuracy of the root is low, and there are problems of over-cutting or under-cutting, providing a practical, efficient, and high-precision step-by-step electrolytic machining process and device for integral impeller blades of aero-engines

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  • Step and zone type integral impeller electrolytic processing process and device
  • Step and zone type integral impeller electrolytic processing process and device
  • Step and zone type integral impeller electrolytic processing process and device

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0023] Such as figure 1 shown. It is a schematic diagram of the electrolytic machining of the overall impeller blade. Figure (a) is the machining of the blade back, Figure (b) is the machining of the blade pot, and Figure (c) is the machining of the blade root. In the step-by-step partition method integral impeller blade electrolytic processing process described in the present invention, the electrolytic processing of the integral impeller is divided into three processing procedures: the blade pot, the blade back and the blade root. root sequence for processing;

[0024] Divide the processing areas of the leaf back, leaf pot, and leaf root so that the cross-section of the leaf pot and leaf back processing area is trapezoidal, the width of the leaf back is greater than the width of the leaf pot, and the distribution of the leaf root processing area from left to r...

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Abstract

The invention discloses step and zone type integral impeller electrolytic processing process and device, which belong to the field of impeller electrolytic processing. The integral impeller electrolytic processing has three processing procedures of impeller disc, impeller back and impeller root. The impeller back is firstly processed, then the impeller disc is processed, and the impeller root is processed. The impeller disc, the impeller back and impeller root can be respectively processed along the respective profile by a sweeping forming method. The device comprises an X-axis slide unit, a Y-axis slide unit, a Cw-axis rotary table, an index plate, a processing power supply, an anode conductive plate, a center shaft, a cathode, a cathode conductive plate, a pressure gauge, a ball valve, a water pump, a filter and an electrolytic tank. The invention effectively solves the problem of blade processing of the integral impeller, and is suitable for processing the integral impellers of aerospace engines and advanced power units.

Description

technical field [0001] The invention relates to a process and a device for electrolytic machining of integral impeller blades of aerospace engines, and belongs to the technical field of electrolytic machining of impellers. Background technique [0002] With the development of the national defense industry, the performance of aero-engines continues to improve. By 2015-2020, the thrust-to-weight ratio of future aero-engines will increase from the current 8-10 to 15-20. The overall structure of the fan, compressor and turbine is A trend in engine development. The impeller is one of the main components of the aero-engine compressor. Its blades are usually designed by multidisciplinary optimization based on aerodynamic and heat transfer analysis, static strength analysis, vibration analysis, and life analysis. The shape is becoming more and more complex. It is usually a free-form surface, so machining becomes very difficult. [0003] The processing methods of the integral impel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H9/10B23H3/00
Inventor 赵建社王福元吴建民吴锐刘辰钱密朱永伟干为民康敏葛媛媛云乃彰徐家文
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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