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Method for optimizing plunge milling machining of slotting of integral impeller

A technology of integral impeller and optimization method, applied in metal processing, metal processing equipment, metal processing mechanical parts, etc., to achieve the effect of avoiding interference, small blade deformation, and high cutting efficiency

Active Publication Date: 2012-07-25
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the prior art, to provide a method for optimizing the slotting and milling of the overall impeller, to solve the problem of selection and optimization of cutting parameters in the slotting and milling of the overall impeller, so as to achieve small blade deformation and high cutting efficiency. high beneficial effect

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  • Method for optimizing plunge milling machining of slotting of integral impeller
  • Method for optimizing plunge milling machining of slotting of integral impeller
  • Method for optimizing plunge milling machining of slotting of integral impeller

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Embodiment Construction

[0018] The content of the overall impeller slotting milling process optimization method according to the present invention is to set up the milling dynamics model and the milling force model of the asymmetric plunge milling of the large fillet milling cutter, and the modal parameters obtained by the modal test and The dynamic milling force obtained from the milling force model is substituted into the dynamic equation to further correct the cutting force; the equivalent tool holder system stability analysis finite element model is established, and the deformation ratio and the radial offset of the dangerous position of the tool holder are introduced. In order to obtain optimized cutting parameters.

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the details of each step will be set forth.

[0020] The embodiment adopts DMU70V CNC milling center, the tool adopts φ12 SECO integral replaceable head t...

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Abstract

The invention discloses a method for optimizing plunge milling machining of a slotting of an integral impeller. The method comprises the steps of establishing a plunge milling dynamics model and a milling model of a large filleted corner milling cutter asymmetry milling; substituting a modal parameter obtained from a modal experiment and a dynamic milling force obtained through a milling force model into a dynamics equation so as to further modify the cutting force; establishing an equivalent cutter bar stability analyzing finite element model, introducing a deformation ratio and a cutter bardanger position radial offset so as to obtain an optimized cutting parameter. According to the method, the problem of selection optimization of cutting parameters in the plunge milling machining of the slotting of integral impellers is solved, so that the interference phenomenon between cutters and work pieces is avoided; and the beneficial effects of small impeller deformation and high cutting efficiency are achieved. The method is also applicable for rough milling machining of slotting of similar parts.

Description

technical field [0001] The invention relates to a processing method of an integral impeller of an aero-engine, in particular to a method for selecting and optimizing cutting parameters for slotting and milling of the integral impeller, and belongs to the technical field of mechanical processing. Background technique [0002] As a key component of power machinery, the integral impeller is widely used in aviation, aerospace, power and other fields. Whether the processing quality of the impeller and whether the processing accuracy meets the requirements directly determine the performance of the entire equipment, and the rough machining and milling technology of the overall impeller slotting is one of the key technologies in the impeller processing process, and its quality directly affects the subsequent semi-finished products. The processing quality of finishing and finish machining, therefore, which cutting parameters to choose during the rough machining and milling process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/28B23Q15/013
Inventor 陈明魏莹莹李军利牛秋林安庆龙
Owner SHANGHAI JIAO TONG UNIV
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