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A magnetorheological support method for blisk processing

A support method and magnetorheological technology, applied in the directions of blade support elements, metal processing equipment, metal processing machinery parts, etc., can solve the problems of weak rigidity and poor processing accuracy, and achieve improved local rigidity, good supporting effect, and processing. high precision effect

Active Publication Date: 2020-02-18
DALIAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to overcome the shortcomings of the above methods, aiming at the problem of poor machining accuracy due to weak local rigidity in the machining of blisks, a magnetorheological support method for blisk machining is invented

Method used

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  • A magnetorheological support method for blisk processing
  • A magnetorheological support method for blisk processing

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Embodiment Construction

[0019] The embodiments of the present invention will be described in detail in conjunction with the drawings and technical solutions.

[0020] In the embodiment, figure 1 is a schematic diagram of the overall structure of the magnetorheological fluid support device, figure 2 It is a sectional view of the magnetorheological support mechanism II. Wherein, the skeleton 13 is made of non-magnetic aluminum alloy material, the permanent magnet 14 is made of RuFeB strong magnetic material, and the permanent magnet 14 contains a magnetic switch. The magnetorheological fluid 18 is made of 40% volume fraction of carbonyl iron powder and 60% volume fraction of silicone oil, with a density of 3.55g / ml.

[0021] The assembly steps of the magnetorheological fluid support device are as follows:

[0022] First install the linear feed mechanism I, install the linear guide rail 5 on the fixed workbench 4, install the slide seat 6 on the linear guide rail 5, and fasten the lead screw bracket...

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Abstract

The invention is a magnetorheological support method for blisk processing, which belongs to the field of processing technology and relates to a magnetorheological support method for blisk processing. This method uses a fork-shaped structure and a soft film to wrap the magnetorheological fluid. The magnetorheological fluid flows and fills under a certain pressure. The bulged soft film can conform to the surface of the blisk blades, and the magnetorheological fluid is excited and solidified to ensure Provides flexible support for weakly rigid components. Using electro-permanent magnets symmetrically arranged at both ends of the fork-shaped structure, a uniform magnetic field is constructed to achieve global excitation of the magnetorheological fluid, allowing the magnetorheological fluid to work in shear mode and achieve the effect of an external magnetic field to control the damping force. The electropermanent magnetic field is used to control the solid-to-liquid transformation of the magnetorheological fluid, and the automatic indexing of the indexing turntable and the automatic transport of the magnetorheological soft film are used to realize the automatic magnetorheological flexible support of all blades in the processing of blisk blades. This method has good support effect, improves local rigidity, has high processing accuracy, and realizes the automation of magnetorheological support in blisk blade processing.

Description

technical field [0001] The invention belongs to the technical field of processing, and in particular relates to a magnetorheological support method for blade disk processing. Background technique [0002] The blisk is a key part of a high-performance aero-engine, which requires CNC machining of thin-walled blades with complex shapes on die-forged nickel-based superalloy or titanium alloy blanks. However, this kind of blisk blade has geometric characteristics such as wide chord, sweep, and deep diameter. In actual processing (especially in the finishing stage), the blade is often in a cantilever state, which makes cutting chatter very easy to occur, which in turn leads to machined surface vibration. Streaks and tool chipping. For this reason, in blisk machining, it is of great engineering value to adopt effective auxiliary support measures to improve the machining accuracy and efficiency of blisk blades. [0003] Magnetorheological fluid is a smart material with controllabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00
CPCB23C3/18B23C2215/04F04B43/12F05D2230/00F01D5/34F05D2230/10F05D2240/511F05D2240/91F01D25/285B23Q3/086B23Q3/063B23P15/02B23P15/06F01D5/141F04B45/08F05D2230/60G05B19/402G05B2219/49203
Inventor 刘海波毋健雄罗祺李特吴晓峰王永青康仁科
Owner DALIAN UNIV OF TECH
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