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Machine tool machining method of high temperature resisting heat insulation sandwich material component

A sandwich material and processing method technology, applied in metal processing equipment, metal processing machinery parts, clamping, etc., can solve the problems affecting the production and preparation of components, the inability to process components with special shapes, and the poor edge state of components, etc. Achieve the effects of saving time and cost, easy operation and shortening the preparation cycle

Active Publication Date: 2017-06-09
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the existing processing methods, such as lathe or milling machine, etc. are used, the positioning accuracy is low, the degree of automation is not high, the edge state of the component after processing is not good, which affects the progress of component production and preparation, and even some components with special shapes cannot be processed, etc. question

Method used

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  • Machine tool machining method of high temperature resisting heat insulation sandwich material component
  • Machine tool machining method of high temperature resisting heat insulation sandwich material component
  • Machine tool machining method of high temperature resisting heat insulation sandwich material component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The single-member material with the three-layer structure of upper panel layer, lower panel layer and core layer is processed by manual milling machine. The materials of each layer are shown in Table 2. The upper panel layer and the lower panel layer are made of The fiber prefabricated body is compounded with a high-temperature-resistant sol precursor (silicon dioxide); the middle core layer is obtained by compounding a flexible high-temperature-resistant fiber prefabricated body and an airgel sol precursor (silicon dioxide). Such as figure 1As shown, firstly, the component material blank including a sandwich material component is placed on the upper and lower clamping processing tools; then the component material blank is positioned using the positioning feature; the positioned component material blank is fixed; the component material blank The body is edge-cut to obtain the final sandwich material component (see figure 1 ). See Table 2 below for processing accuracy ...

Embodiment 2

[0077] The multi-component material (including 4 sandwich structures) with the three-layer structure of upper panel layer, lower panel layer and core layer is processed by manual milling machine. The materials of each layer are shown in Table 2, in which the upper panel layer and the lower panel layer The panel layer is obtained by compounding a three-dimensional braided fiber preform and a high-temperature-resistant sol precursor (alumina); the middle core layer is obtained by compounding a flexible high-temperature-resistant fiber preform and an airgel sol precursor (alumina). Such as figure 1 As shown, first place the component material blank including 4 sandwich material components on the upper and lower clamping processing tools; then use the positioning features to position the component material blank; fix the positioned component material blank; The blank is edge-cut to obtain an edge-cut member with a cut edge, and then the edge-cut member is divided into four final c...

Embodiment 3-4

[0079] Proceed according to the content shown in the table below, and see Table 1 for machining accuracy errors.

[0080] Example Material Number of components (pieces) Processing methods Processing methods Example 3 Same as Example 3 4 Same as Example 2 manual milling machine Example 4 Same as Example 3 1 Same as Example 1 manual milling machine

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Abstract

The invention provides a machine tool machining method of a high temperature resisting heat insulation sandwich material component. The method comprises the following steps that (1) a component material blank is arranged on a machining tool; (2) locating features are used for locating the component material blank; (3) the located component material blank is fixed; and (4) the component material blank is subjected to edge cutting machining, and an edge cutting machining component is obtained. The component material blank is provided with a heterogeneous layer structure, and edge cutting machining is carried out through a machine tool machining manner. The method is simple, operation is easy and convenient, and pollution to the environment is small; the machining precision and machining efficiency of the component can be greatly improved; and the method is mainly used for the fields of the aerospace industry, the civil industry and the like.

Description

technical field [0001] The invention relates to the technical field of heat insulation materials, in particular, the invention relates to a processing method of a high temperature resistant heat insulation sandwich material component. Background technique [0002] During the long-term high-speed cruise of a hypersonic aircraft in the atmosphere, the aircraft must bear severe gas and thermal loads. In order to ensure the integrity of the shape and structure of the aircraft and the normal operation of internal components, a thermal protection system with both temperature-resistant, heat-insulating and load-bearing functions is required to protect the aircraft from burning and overheating in an aerodynamic heating environment. [0003] Since the thermal protection system needs to have multiple functions such as temperature resistance, heat insulation and load bearing, it generally adopts high temperature resistant heat insulation components with sandwich structure, that is, hig...

Claims

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Application Information

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IPC IPC(8): B23Q3/06
Inventor 宋寒苏力军李文静刘云龙曹杰李晶
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH