Shape-dimensional methods of structural foam materials and methods for machining

Abstract

The invention provides a shape dimensioning method for structural foam materials, comprising the following steps: on the outer surface of the structural foam material that needs to be dimensioned, determine that the net size area is on the outline of the net size area, and paste double-sided adhesive tape to make the double-sided The inner surface of the surface tape is attached to the outer surface of the structural foam material; on the outer surface of the double-sided adhesive tape, a release cloth is pasted so that the non-adhesive side of the release cloth is attached to the outer surface of the double-sided adhesive tape, wherein , the release cloth can at least completely cover the net size area; brush the glue, wherein the area covered by the glue is greater than or equal to the area covered by the release cloth; after the glue is cured, the glue and the outer surface of the release cloth form an integral body. The beneficial effect of the invention is that a structural foam material free from contamination or damage in subsequent processes can be obtained, such as a core material of structural foam material used in composite materials. At the same time, the present invention also provides a method for machining thus obtained.

Description

technical field [0001] The present invention relates to a shape-dimensional method of structural foam materials, and also to a method for machining. Background technique [0002] In the sandwich structure of composite materials, structural foam material (in this technical field, often simply referred to as "foam") is one of the commonly used core materials. Structural foam materials are loose inside and full of tiny pores, which leads to limitations in the application of vacuum adsorption, a traditional mechanical reinforcement method, to structural foam materials. Therefore, the currently commonly used methods of mechanical processing and fixed clamping (referred to as: machine reinforcement) of structural foam materials are mainly the following two methods: [0003] 1. Bonding and holding: This process uses double-sided adhesive to bond the foam parts to the tooling, and then machine them. Since the application of double-sided adhesive tape within the net size of the str...

AI Technical Summary

Problems solved by technology

In production, the method of segmented pressing and segmented processing is often used, but the efficiency is low, and for the parts to be processed with a large area, the middle position cannot be fitted with a pressure plate, and the clamping effect is not ideal

When the thickness of the part to be processed is thinned, the structural foam material will have a certain rebound deformation, and it is impossible to fit the tooling completely, resulting in the unstable thickness of the part

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