Novel integral turning method of blades

A blade and turning technology, which is applied in the field of new integral turning of blades, can solve the problems of insufficient pressing force of the blades, and achieve the effect of ensuring the pressing force.

Inactive Publication Date: 2011-08-10
WUXI TURBINE BLADE
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] In view of the above problems, the present invention provides a new type of overall turning method for blades, which can effectively solve the problem of insufficient pressing force of blades in the combined processing of blades in the past, and can solve the lack of rigidity caused by intermittent cutting. The method is simple, Can greatly improve processing efficiency

Method used

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Embodiment Construction

[0008] See figure 1 , the new overall turning method of the blade of the present invention, the blade 1 is positioned in a simulated assembly state and pressed on the turning fixture 3 with the pressure plate 2, and then the low melting point alloy 4 is poured between the blade 1 and the turning fixture 3, and the low melting point After the alloy 4 is cooled and solidified, the pressure plate 2 is removed, and the blade 1 and the turning fixture 3 are firmly bonded by the low melting point alloy 4, so that the blade 1 and the turning fixture 3 form a complete rigid part, and then the blade combination processing is performed. After the blade combination processing is completed, the blade 1 and the turning fixture 3 are put into hot water as a whole, the solid low-melting point alloy 4 is melted by heat, and the blade 1 and the turning fixture 3 are separated. Low melting point alloy 4 is tin-bismuth alloy; the shrinkage ratio of metal tin and metal bismuth in tin-bismuth allo...

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Abstract

The invention provides a novel integral turning method of blades, which can effectively solve the problem of insufficient pressing force of the blades during the assembly machining of the blades in the past and also overcome the defect of insufficient rigidity caused by interrupted cutting. The novel integral turning method of the blades is simple and can greatly enhance machining efficiency. The novel integral turning method of the blades is characterized by comprising the following steps of: positioning the blades by simulating an assembling state, and pressing the positioned blades on a turning jig by using a press plate; then pouring a low-melting-point alloy between the blades and the turning jig; disassembling the press plate after the low-melting-point alloy is cooled and solidified; firmly bonding the blades and the turning jig depending on the low-melting-point alloy so that an integral rigid part is formed by the blades and the turning jig, and then carrying out assembly machining on the blades; and after the blades are subjected to the assembly machining, placing the blades and the turning jig into hot water so that the blades and the turning jig are separated because the solid low-melting-point alloy is melted when heated, and therefore the assembly machining of the blades is completed.

Description

technical field [0001] The invention relates to the technical field of blade processing, in particular to a novel integral turning method of blades. Background technique [0002] Under normal circumstances, the blades of the engine group are combined and processed by pressing each part of the blade one by one, and the processing parts are avoided by replacing the pressure plate during the processing process, that is, the crown is pressed when the root is processed, and the root is pressed when the crown is processed. Because it is interrupted cutting rather than continuous cutting, it has the problem of insufficient pressing force, and it is easy to generate noise, joint marks, and insufficient rigidity during the cutting process. In order to solve the above-mentioned problem of insufficient rigidity, wooden wedges are generally installed between the combined blades to support the rigidity of the blades. However, because the blade surface is a three-dimensional curved surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/00
CPCB23Q3/063B23Q3/086
Inventor 李淑芳任勇王方江滕树新范非
Owner WUXI TURBINE BLADE
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