3D Printed Wear Indicators with Variable Thickness Shells
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Solution Overview
Problem
Traditional manufacturing processes for wear indicators on mechanical components face challenges in accessing internal parts and are limited by the geometries and shapes that can be formed, making it difficult to effectively integrate wear indicators into mechanical components subject to erosion or deformation.
Innovation Solution
A 3D printing process is used to generate wear indicators by creating a 3D object model with spatial shells of variable thickness, allowing for the precise placement and modulation of wear indicator properties at different levels and locations, enabling the formation of wear indicators with arbitrary geometric shapes and enhanced control over their exposure as the component wears.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional manufacturing processes are used to create wear indicators, then the manufacturing process is simple and well-established, but it is difficult to access internal parts and limited in geometries and shapes that can be formed
Solution Approach 1:
The patent changes the manufacturing method from traditional subtractive or form-based processes to additive manufacturing (3D printing), enabling complex internal geometries and arbitrary shapes that were previously inaccessible. This parameter change in the manufacturing process allows wear indicators to be formed with sophisticated spatial configurations including internal cavities, varying wall thicknesses, and non-standard geometries.
Solution Approach 2:
The patent utilizes the third dimension extensively by creating wear indicators with complex spatial arrangements of shells and cavities. The multi-layered shell structure with variable thickness in different directions allows for three-dimensional wear patterns to be captured and displayed, transforming the traditional two-dimensional wear indicator concept into a three-dimensional information display system.
2Ease of manufacture
If traditional manufacturing processes are used, then the process is easier to implement, but it is difficult to access internal parts to build wear indicators
Solution Approach 1:
The patent incorporates wear indicators during the initial manufacturing of the mechanical component using additive manufacturing, rather than attempting to access and install them later. The wear indicator is built concurrently with the component structure, allowing internal wear indicators to be placed in locations that would be inaccessible for post-manufacturing installation.
Solution Approach 2:
The patent merges the wear indicator structure with the mechanical component structure itself. The wear indicator is integrated into the component's internal geometry, sharing the same material volume and structural framework. This integration eliminates the need for separate access operations and allows the wear indicator to be formed as part of the component's primary manufacturing process.
3Manufacturing precision
If spatial shells of variable thickness are used to modulate wear indicator properties, then precise control over wear indication is achieved, but the manufacturing complexity increases
Solution Approach 1:
The patent utilizes parameter changes in the shell thickness to modulate the wear indicator properties. By varying the thickness of different shell regions, the patent controls which portions of the wear indicator are exposed as wear progresses. This parametric approach allows precise control over the wear indication sequence without requiring complex mechanical mechanisms, leveraging the inherent capabilities of additive manufacturing to vary geometry continuously.
Data Source
AI summary
In some examples, a system generates three-dimensional (3D) object data for printing by a 3D printing system, the generating including determining a region in which to generate a wear indicator, and computing an arrangement of spatial shells of variable thickness in the region, where the spatial shells contain data representing at least one property of the wear indicator.