Additive and subtractive composite manufacturing method for gradient function vibration and noise reduction composite material

Abstract

The invention provides an additive and subtractive composite manufacturing method for a gradient functional vibration and noise reduction composite material, which comprises the following steps of: firstly, carrying out digital-analog layering and path planning on a target material or a component, and directly melting and depositing metal powder or a wire with specific components onto a base material according to a planned printing path and the demand of each layer; then, according to a pre-designed hollow ball space arrangement mode, carrying out subtractive machining on a deposition layer, obtaining a round hole array with the needed size and depth, wherein the arrangement mode follows a preset arrangement rule, putting prefabricated metal hollow balls into corresponding holes subjected to subtractive machining, and then according to the component design requirement, carrying out additive deposition modeling on the deposition layer in which the metal hollow balls are put to cover the hollow ball array; and then carrying out numerical control milling to obtain a flat deposition layer plane, and repeatedly carrying out the manufacturing process of additive deposition modeling, circular hole array numerical control machining, hollow ball laying, additive deposition modeling and numerical control milling machining, so that the gradient function vibration and noise reduction composite material can be manufactured.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a method for preparing a gradient function vibration-reduction and noise-reduction composite material by using the compound manufacturing technology of adding and subtracting materials, and belongs to the technical field of vibration-reducing and noise-reducing functional materials. Background technique [0002] In order to meet the comfort of the passengers of luxury cruise ships, ocean-going cargo ships and large ocean-going ships, damping materials and composite structure designs are usually used to manufacture vibration- and noise-reducing materials and components to improve and control ship cabin noise. According to the structural design requirements of existing ship vibration and noise reduction materials and components, these vibration and noise reduction materials are required to have excellent properties such as low density, high strength, high damp...

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Problems solved by technology

[0004] However, in the current traditional preparation technology of materials and structural parts, it is difficult to precisely control the composition and structure according to the design, and its mechanical properties and functional properties are difficult to precisely control according to the design, so that it is distributed in a certain order.

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