In-situ synthesis type TiB2 particle-reinforced aluminum matrix composite blade cutting machining method

A particle-reinforced aluminum and in-situ self-generated technology, which is applied in the field of composite material blade cutting and processing, can solve problems such as poor precision

Inactive Publication Date: 2016-08-10
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency of poor accuracy of existing composite material blade cutting and processing methods, the present invention provides an in-situ self-generated TiB 2 Machining Method of Particle Reinforced Aluminum Matrix Composite Blades

Method used

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  • In-situ synthesis type TiB2 particle-reinforced aluminum matrix composite blade cutting machining method
  • In-situ synthesis type TiB2 particle-reinforced aluminum matrix composite blade cutting machining method
  • In-situ synthesis type TiB2 particle-reinforced aluminum matrix composite blade cutting machining method

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Embodiment Construction

[0035] refer to Figure 1-5 . In situ self-generated TiB of the present invention 2 The specific steps of the cutting method of particle reinforced aluminum matrix composite blade are as follows:

[0036] The aeroengine compressor blade processed by the method of the present invention is composed of a blade body 1 , an edge plate 2 and a tenon 3 .

[0037] Step 1, cutting.

[0038] Analyze the size and structural characteristics of the blade, select a square blank with an appropriate size, and drill the top holes at both ends with CNC. In this embodiment, the size of the blade forging blank is 160mm×65mm×45mm.

[0039] Step 2. Roughing the upper and lower reference axes.

[0040] On the CNC lathe, the upper end reference axis 4 and the lower end reference axis 5 are roughed based on the center hole and the two ends of the blank to form the basis for rough milling. In this embodiment, the dimensions of the upper and lower reference axes after rough turning are: Φ20mm×14mm...

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Abstract

The invention discloses an in-situ synthesis type TiB2 particle-reinforced aluminum matrix composite blade cutting machining method. By means of the method, the technical problems of an existing composite blade cutting machining method are solved. According to the technical scheme, the method comprises the steps that rough milling machining of the profile of a blade is completed in a one-face milling mode at first, and an aging treatment technology is adopted for balancing cutting residual stress after rough milling machining is completed; then, the blade is fixed to a special clamp, semi-finish-milling machining of all areas on the profile of a blade basin and semi-finish-milling machining of all areas on the profile of a blade back are alternately completed in a helical milling mode, and the aging treatment technology is adopted for eliminating blade residue stress; and finally, the blade is fixed to the clamp again, and finish-milling machining of all the areas on the profile of the blade basin and finish-milling machining of all the areas on the profile of the blade back are alternately completed in the helical milling mode. Due to the fact that semi-finish-milling machining and finish-milling machining of the profiles of the blade basin and the blade back are completed in the helical milling mode, distortion in the machining process is effectively inhibited, and the machining precision of the composite blade is improved.

Description

technical field [0001] The invention relates to a method for cutting and processing composite material blades, in particular to an in-situ self-generated TiB 2 A machining method for particle reinforced aluminum matrix composite blade cutting. Background technique [0002] In situ self-generated TiB 2 Particle reinforced aluminum matrix composites (referred to as TiB 2 / Al composite material) is a new type of particle reinforced aluminum matrix composite material with high specific strength, high specific modulus, fatigue resistance and other characteristics, the overall performance is close to that of titanium alloy, but the density is 1 / 3 lower than that of titanium alloy. Therefore TiB 2 / Al composite material has become one of the ideal candidate materials to replace titanium alloy for low-pressure compressor blades of aeroengines, but the cutting method of the material compressor blades is still blank. [0003] In the existing blade single-side milling process, eith...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/02
CPCB23P15/02
Inventor 蒋睿嵩林坤阳汪文虎熊一峰宋国栋赵德中崔康靳淇超王楠曹旭康邵明伟刘钟
Owner NORTHWESTERN POLYTECHNICAL UNIV
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