Metal-Encapsulated Polymer Substrate for Structural Strength
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Solution Overview
Problem
Current polymeric materials are limited in their structural strength and suitability for complex geometries, making them less desirable for high-strength and lightweight components in industrial applications like automotive and aerospace, where enhanced durability and resistance are needed.
Innovation Solution
A polymeric article is encapsulated within a metallic outer shell, which is formed using methods like electroforming or cold spraying, allowing for the creation of high-strength components with complex geometries by molding the polymer substrate into the metallic shell without direct bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If polymeric materials are used to form components with complex geometries, then lightweight and design flexibility are improved, but structural strength and durability are worsened
Solution Approach 1:
The patent applies composite materials by combining a polymeric substrate with a metallic outer shell to create a hybrid structure that leverages the lightweight properties of polymers and the high strength properties of metals, resolving the contradiction between weight and structural strength
Solution Approach 2:
The patent uses nesting by placing the polymeric substrate inside a metallic outer shell, where the polymer core provides lightweight structural support while the metallic shell provides enhanced strength and durability protection
2Weight of moving object
If polymeric materials are used for structurally loaded applications, then lightweight properties are improved, but strength relative to metallic materials is worsened
Solution Approach 1:
The patent creates a composite structure where the metallic outer shell provides the high strength needed for structurally loaded applications while the polymeric substrate maintains lightweight properties, eliminating the need to choose between polymer lightness and metal strength
3Shape
If conventional polymer molding techniques are used to create complex geometries, then design flexibility is improved, but manufacturing cost is worsened
Solution Approach 1:
The patent segments the manufacturing process into two independent stages: first forming the metallic outer shell using cost-effective techniques like electroforming or stamping, then separately molding the polymeric substrate and assembling it, allowing each component to be optimized independently for cost and complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The metallic encapsulation significantly enhances the strength and durability of the polymeric article, improving properties such as environmental durability, erosion resistance, and impact resistance, while enabling the creation of complex shapes and reducing manufacturing costs.
Implementation Method 1
shaping the metallic outer shell on the mandrel by a method selected from the group consisting of electroforming, cold spraying, and plasma vapor deposition
Implementation Method 2
shaping the metallic outer shell on the mandrel by a method selected from the group consisting of electroforming, cold spraying, and plasma vapor deposition
Implementation Method 3
shaping the metallic outer shell on the mandrel by a method selected from the group consisting of electroforming, cold spraying, and plasma vapor deposition
Data Source
AI summary
An encapsulated polymeric article is disclosed. The encapsulated polymeric article may include a polymer substrate and a metallic outer shell at least partially encapsulating the polymer substrate. The encapsulated polymeric article may be fabricated by a method comprising: 1) providing a mandrel in a shape of the encapsulated polymeric article, 2) shaping the metallic outer shell on the mandrel, 3) removing the mandrel from the metallic outer shell, and 4) molding the polymeric substrate into the metallic outer shell through a port formed in the metallic outer shell to provide the encapsulated polymeric article.