Composite Body Coating Mold Selective Ablation
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Solution Overview
Problem
Existing methods for producing self-supporting surfaces struggle to create a stable connection between the surface and connected elements during the coating process, often resulting in inadequate dimensional accuracy and adhesion.
Innovation Solution
A method involving a negative mold with selective ablation and layer deposition to embed elements within the surface, ensuring a stable connection by controlling the thickness and material properties of the layers, and allowing for precise dimensional accuracy and surface finishing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elements are connected to the self-supporting surface during the coating process, then a stable connection can be created, but the dimensional accuracy and adhesion are insufficient
Solution Approach 1:
The negative mold is smoothed as a whole before selective ablation to establish the required dimensions of the elements. This preliminary smoothing action ensures that the base surface has the correct dimensional accuracy before the coating process begins, allowing subsequent selective removal to create precise element projections without compromising overall dimensional control.
Solution Approach 2:
Selective ablation is applied only to specific areas of the negative mold surface where elements are to be embedded, while other areas remain intact. This localized treatment creates precise projections at specific locations, enabling elements to be embedded with high dimensional accuracy while maintaining the stability of the overall structure.
2Manufacturing precision
If the surface thickness is reduced to a few tens of micrometers, then the composite body can be produced with high precision, but the connection strength between elements and surface may be compromised
Solution Approach 1:
Elements are embedded within the self-supporting surface such that the element projections are surrounded and anchored by the coating material. This nesting arrangement allows the thin surface (a few tens of micrometers) to still provide sufficient connection strength, as the elements are mechanically interlocked within the coating rather than merely attached to the surface.
Solution Approach 2:
The self-supporting surface is formed as a composite structure with the embedded elements, creating a unified material system. The coating material and embedded elements work together as a composite, where the thin surface thickness does not compromise strength because the composite structure itself provides the necessary mechanical integrity and connection strength.
3Reliability
If selective ablation is performed to create element projections, then elements can be embedded in the surface, but the surface homogeneity and appearance may be affected
Solution Approach 1:
The negative mold surface is smoothed as a whole before selective ablation, creating a homogeneous base surface. This preliminary smoothing ensures that any subsequent variations in surface appearance are minimized, and the final surface maintains uniformity even after selective removal of material to create element projections.
Solution Approach 2:
The selective ablation process controls the thickness parameter of the removed material precisely, removing only the necessary amount to create element projections while maintaining the overall surface homogeneity. By carefully controlling the ablation depth and distribution, the surface appearance remains uniform while still enabling reliable element embedding.
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
This method enables the production of composite bodies with a firm connection between the self-supporting surface and elements, achieving high dimensional accuracy and a homogeneous surface appearance, suitable for various applications including optical and decorative components.
Implementation Method 1
selectively ablating the surface of the negative mold to be coated with the at least one self-supporting surface by a defined first thickness
Implementation Method 2
depositing one or more layers for forming the at least one self-supporting surface having a defined second thickness
Data Source
AI summary
A method is provided for producing a composite body made of at least one self-supporting surface and at least one element connected to the surface in a coating process. The method includes providing a negative mold including the at least one element of the composite body, selectively ablating a surface of the negative mold to be coated with the at least one self-supporting surface by a defined first thickness so that the at least one element stands out from the surface as a projection at least in areas, depositing one or more layers for forming the at least one self-supporting surface having a defined second thickness, wherein an elevation forms in the area of the projection of the at least one element, leveling the coated surface, wherein the elevation is removed, and selectively removing at least parts of the negative mold.