A compound manufacturing method of adding and subtracting materials for gradient function vibration and noise reduction composite materials

Abstract

The invention provides a compound manufacturing method of adding and subtracting materials for gradient function vibration-reducing and noise-reducing composite materials. Firstly, digital-analog layering and path planning are performed on target materials or components, and specific components are directly printed according to the planned printing path according to the requirements of each layer. The metal powder or wire material is melted and deposited on the base material; then, according to the pre-designed spatial arrangement of hollow spheres, subtractive processing is performed on the deposited layer to obtain a circle with the required size and depth and the arrangement follows the preset arrangement rules. Hole array, put the prefabricated metal hollow spheres into the corresponding subtractive holes, and then according to the composition design requirements, perform additive deposition on the deposition layer that has been placed in the metal hollow spheres to cover the hollow sphere array; then CNC milling to obtain a flat surface The deposition layer plane, repeating the manufacturing process of additive deposition forming-round hole array CNC machining-hollow ball placement-additive deposition forming-NC milling, can manufacture gradient function vibration and noise reduction composite materials.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a method for preparing a composite material for vibration reduction and noise reduction with gradient function by adopting the composite manufacturing technology of addition and subtraction materials, and belongs to the technical field of vibration and noise reduction 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 reduction 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 acoustic materials are required to have excellent properties such as low density, high str...

AI Technical Summary

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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