Open-Area Core Sandwich Tooling for Gloss Surfaces and Sealed Edges
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Solution Overview
Problem
Existing sandwich composite structures face challenges in achieving high gloss surfaces, moisture resistance, and consistent edge sealing, which complicates manufacturing and limits their utility in applications requiring attachments.
Innovation Solution
A manufacturing tool that forms a sandwich composite structure with a high gloss surface and sealed edges in a single step, using adhesive layers to adhere a surface sheet and structural skin to an open area core, while incorporating a sealing and cutting edge to prevent moisture infiltration and allow for additional attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional sandwich structures are used, then weight savings and strength are achieved, but high gloss surface quality cannot be obtained
Solution Approach 1:
The patent combines the structural skin and surface sheet into a single integrated layer that serves both structural and aesthetic functions. The structural skin is formed with an integral surface sheet that provides the high gloss finish, eliminating the need for separate coating layers and achieving both strength and surface quality in one manufacturing step.
Solution Approach 2:
The patent uses a composite structure consisting of a foam core combined with a structural skin made from thermoplastic material. This composite material system allows the structural skin to provide both mechanical strength and a high gloss surface finish simultaneously, resolving the contradiction between structural requirements and surface quality.
2Manufacturing precision
If additional outer layers are added to provide high gloss surface, then surface quality improves, but manufacturing cost and complexity increase
Solution Approach 1:
The patent merges the structural skin and surface sheet into a single integrated component that is formed in one manufacturing process. This eliminates the need for separate steps to apply additional outer layers, reducing manufacturing complexity while maintaining high gloss surface quality.
Solution Approach 2:
The surface sheet is incorporated into the structural skin during the initial forming process, so the high gloss surface is prepared in advance as part of the structural component itself. This preliminary integration eliminates the need for subsequent coating or finishing operations.
3Reliability
If additional processing steps are added to seal edges and trim excess material, then moisture resistance improves, but manufacturing time and cost increase
Solution Approach 1:
The patent combines the sealing and trimming operations into a single integrated step during the forming process. The tooling design incorporates sealing surfaces that automatically seal the edges and trim excess material simultaneously, achieving moisture resistance without requiring multiple separate processing steps.
Solution Approach 2:
The edges are sealed and excess material is trimmed during the initial forming operation, so the moisture-resistant configuration is prepared in advance. This preliminary completion of sealing and trimming eliminates the need for subsequent processing steps, increasing manufacturing speed.
4Reliability
If hand processing by skilled craftsman is used to seal edges, then moisture resistance improves, but manufacturing cost and time increase
Solution Approach 1:
The tooling design incorporates automatic sealing surfaces that perform the sealing function without requiring skilled manual labor. The sealing action is built into the forming process itself, allowing the system to service its own sealing requirements through the manufacturing process rather than requiring external skilled intervention.
Solution Approach 2:
The patent replaces manual mechanical sealing operations with an automated tooling system that performs sealing through the forming process. This substitution of manual skilled labor with automated mechanical forming improves manufacturing efficiency while maintaining reliable edge sealing.
5Ease of manufacture
If conventional tools are used to form sandwich structures, then basic structure production is achieved, but high gloss surface and sealed edges cannot be produced simultaneously
Solution Approach 1:
The patent designs a universal forming tool that performs multiple functions: it forms the basic sandwich structure, creates the high gloss surface finish, and seals the edges simultaneously. This multi-functional tooling system eliminates the need for separate specialized tools for each operation, maintaining ease of manufacture while achieving high precision surface and edge quality.
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 tool produces composite structures with high gloss surfaces and sealed edges, enhancing manufacturing efficiency and enabling mass production, while ensuring moisture resistance and readiness for additional components.
Implementation Method 1
A first adhesive layer is intermediate between the high gloss surface sheet and the open area core. A second adhesive layer is intermediate between the structural skin and the open area core.
Data Source
AI summary
A tool for manufacturing a sandwich composite material component is provided that includes a lower tool having a surface configured to receive materials for forming the sandwich composite material component. An upper tool is also provided that has a sealing edge and a cutting edge. The upper tool and the lower tool are configured to be separated to an open position and to be brought together to a closed position, the upper tool and the lower tool define a cavity when in the closed position. A process for forming a sandwich composite material component is also provided.