Textured Laminate Sheet With Barbed Metal Interlocking
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Solution Overview
Problem
Existing laminate manufacturing processes do not effectively create lightweight yet stiff and strong textured laminate sheets with enhanced aerodynamic properties suitable for structural and aerospace applications.
Innovation Solution
A process involving a metal sheet with a barbed face and a substrate material, where the substrate is impaled on the barbs and the opposed face is debossed to form a textured laminate sheet with depressions, enhancing the bond strength and aerodynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional laminate manufacturing processes are used, then production is simpler, but the resulting laminate lacks sufficient stiffness, strength, and aerodynamic properties
Solution Approach 1:
The metal sheet is pre-formed with barbs protruding from one face before lamination. This preliminary action creates mechanical interlocking capability in advance, so that when the substrate material is positioned between the barbed metal sheet and the pressing element, the barbs automatically impale and secure the layers together during the pressing operation, resulting in enhanced bond strength and resistance to shear failure
Solution Approach 2:
The barbs on the metal sheet have curved or hooked geometries rather than straight shapes. This curvature allows the barbs to bend slightly during impalement and create mechanical interlocking with the substrate material, enhancing the bond strength and resistance to shear failure while maintaining manufacturing feasibility
2Weight of moving object
If lightweight materials are used, then weight is reduced, but structural stiffness and strength may be compromised
Solution Approach 1:
The laminate combines a metal sheet with barbs, a substrate material (such as plastic, rubber, wood, foam, or metal), and an adhesive layer to create a composite structure. This composite construction achieves optimal balance between weight and structural performance by leveraging the strengths of different materials: the metal provides stiffness and strength, the substrate contributes to weight reduction and flexibility, and the adhesive ensures strong bonding between layers
Solution Approach 2:
The curved or hooked geometry of the barbs creates mechanical interlocking with the substrate material, enhancing the structural stiffness and strength of the lightweight laminate without adding significant weight. The barb configuration allows the laminate to resist shear forces and maintain structural integrity while keeping overall weight low
3Strength
If barbs are used to secure layers, then bond strength improves, but the metal sheet requires additional texturing steps
Solution Approach 1:
The patent combines multiple functions into a single integrated pressing operation. The pressing element simultaneously applies pressure to bond the laminate layers together through adhesive activation and positions the barbs to impale the substrate material. This merging of bonding and mechanical interlocking actions into one step reduces the number of separate manufacturing operations required
Solution Approach 2:
The pressing element serves multiple functions: it applies pressure to activate adhesive bonding, positions and secures the barbs to impale the substrate material, and textures the opposed face of the metal sheet. This multi-functionality reduces manufacturing complexity by consolidating several operations into a single universal tool
4Adaptability or versatility
If the opposed face is debossed to form depressions, then aerodynamic properties improve, but manufacturing steps increase
Solution Approach 1:
The pressing element is designed with a textured surface that combines the bonding and texturing functions into a single operation. As the pressing element applies pressure to bond the laminate layers, its textured surface simultaneously debosses the opposed face of the metal sheet to create aerodynamic depressions. This merging eliminates the need for a separate texturing step and reduces overall manufacturing complexity
Solution Approach 2:
The pressing element serves as a universal tool that performs multiple functions: bonding the laminate layers through pressure and adhesive activation, positioning the barbs for mechanical interlocking, and creating aerodynamic depressions through its textured surface. This multi-functionality reduces the need for specialized texturing apparatus while achieving enhanced aerodynamic properties
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 resulting textured laminate sheet is stiff, strong, and lightweight, with improved flexural stiffness and reduced shear failure, making it suitable for structural and aerospace applications, while also enhancing aerodynamic properties.
Implementation Method 1
forcing the metal sheet and the substrate material together to impale the substrate material on the barbs and secure the substrate material and the metal sheet together as a laminate sheet
Implementation Method 2
debossing the opposed face to form a plurality of depressions in the laminate sheet so as to texture the laminate sheet
Implementation Method 3
Heating at least one of the metal sheet and the substrate material may include passing the metal sheet and the substrate material between a pair of heating rollers
Data Source
AI summary
A process for producing a textured laminate sheet includes a) positioning a substrate material adjacent a barbed face of a metal sheet. The barbed face has a plurality of barbs, and the metal sheet has an opposed face opposite the barbed face. The process further includes b) forcing the metal sheet and the substrate material together to impale the substrate material on the barbs and secure the substrate material and the metal sheet together as a laminate sheet, and c) debossing the opposed face to form a plurality of depressions in the laminate sheet and texture the laminate sheet.