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Numerical-control machining method for multi-component blanks of high-temperature-resistant heat-insulation sandwich materials

A technology of interlayer materials and processing methods, which is applied in stone processing tools, stone processing equipment, and pipelines through thermal insulation protection, etc., can solve the problem that special-shaped components cannot be processed, the progress of component production and preparation is affected, and the edge state of components is poor, etc. problems, to achieve the effect of simple operation, saving time and cost, and shortening the preparation cycle

Active Publication Date: 2018-09-14
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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  • Numerical-control machining method for multi-component blanks of high-temperature-resistant heat-insulation sandwich materials
  • Numerical-control machining method for multi-component blanks of high-temperature-resistant heat-insulation sandwich materials
  • Numerical-control machining method for multi-component blanks of high-temperature-resistant heat-insulation sandwich materials

Examples

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Embodiment 1

[0073] The multi-component material (including 4 sandwich structures) with the three-layer structure of the upper panel layer, the lower panel layer and the core layer is processed by CNC machine tools. The materials of each layer are shown in Chart 1, in which the upper panel layer and The lower panel layer is obtained by compounding a three-dimensional braided fiber preform and a high-temperature-resistant sol precursor (silicon dioxide); the middle core layer is obtained by compounding a flexible high-temperature-resistant fiber preform and an airgel sol precursor (silicon dioxide) . Such as figure 1 As shown, first place the component material blank including 4 sandwich material components on the conformal processing tool; then use the positioning feature to position the component material blank; adjust the conformal adjustment nut to fix the positioned component material blank Carry out edge cutting processing to component material green body, thereby obtain the edge cut...

Embodiment 2

[0075] The multi-component material (including 4 sandwich structures) with the three-layer structure of the upper panel layer, the lower panel layer and the core layer is processed by CNC machine tools. The materials of each layer are shown in Chart 1, in which the upper panel layer and The lower 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 1As shown, first place the component material blank including 4 sandwich material components on the conformal processing tool; then use the positioning feature to position the component material blank; adjust the conformal adjustment nut to fix the positioned component material blank ; Carry out edge cutting processing on the component material blank, so as to obtain an edge-cut processing member...

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Abstract

The invention provides a numerical-control machining method for multi-component blanks of high-temperature-resistant heat-insulation sandwich materials. The numerical-control machining method includessteps of (1), placing component material blanks in machining tools; (2), positioning the component material blanks by the aid of positioning characteristics; (3), fixing the positioned component material blanks; (4), carrying out edge cutting and machining on the component material blanks to obtain edge cut and machined components; (5), further cutting the edge cut and machined components by means of cutting and machining to obtain a plurality of multilayer components. The component material blanks are of heterogeneous layer structures. The numerical-control machining method has the advantages that the numerical-control machining method is speedy, and the component machining precision, the machining efficiency and the quality stability can be greatly improved by the aid of the numerical-control machining method.

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): B28D1/22B28D7/04F16L59/02
CPCF16L59/029B28D1/22B28D7/04B28D7/046
Inventor 宋寒苏力军李文静刘云龙曹杰李晶
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH