Machining Template for Aperture Periphery Restoration
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Solution Overview
Problem
Existing machining techniques for substrates prone to corrosion often result in accidental material removal beyond intended regions, leading to unacceptable deviations in aperture peripheries and potential failure to meet precise material specifications, necessitating replacement of entire substrates.
Innovation Solution
A tool with a template defining a nominal or maximum material-removal region is secured to the substrate, allowing precise alignment with the aperture periphery, enabling material removal only from predetermined areas while maintaining the integrity of other regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional machining techniques are used on corroded substrates, then material can be removed to restore aperture peripheries, but accidental material removal beyond intended regions occurs leading to deviations from nominal specifications
Solution Approach 1:
The template is divided into distinct regions: a first region defining the nominal material removal boundary and a second region defining the maximum material removal boundary. This segmentation allows the operator to clearly distinguish between areas where material should be removed and areas where it should not, preventing accidental removal beyond the nominal periphery while still allowing correction up to the maximum periphery if needed.
Solution Approach 2:
The template is prepared in advance with pre-defined nominal and maximum periphery boundaries before the machining operation begins. This preliminary definition of removal zones guides the operator to stay within acceptable limits during material removal, preventing specification deviations before they occur.
2Manufacturing precision
If aggressive material removal is used to restore corroded regions, then aperture periphery can be restored to nominal dimensions, but material may be removed from regions that should be preserved
Solution Approach 1:
The template provides different boundary definitions for different local regions: the nominal material removal region defines where material should be removed to restore precision, while the maximum material removal region defines the absolute limits. This local differentiation ensures material is removed only where necessary and where safe, preserving material in regions that should not be affected.
3Productivity
If material removal is performed without precise boundaries, then corroded material can be removed efficiently, but deviations in aperture periphery occur requiring substrate replacement
Solution Approach 1:
The template acts as an intermediary tool between the operator and the substrate during machining. It provides visual and physical boundaries that guide material removal, allowing efficient corrosion restoration while maintaining aperture periphery accuracy. The template mediates the interaction to prevent both over-removal and under-removal of material.
Data Source
AI summary
An example tool includes a body configured to be secured to a substrate, and a template on or in the body. The template defines at least one of a nominal or a maximum material-removal region. An example assembly includes a substrate defining an aperture, and the tool, including the body secured to the substrate. The nominal material-removal region or the maximum material-removal region are substantially aligned with a respective nominal periphery or a maximum periphery of the aperture. An example technique for machining the substrate includes securing the body of the tool to the substrate. The technique includes substantially aligning the nominal or the maximum material-removal region defined by the template with the respective nominal or the respective maximum periphery of the aperture. The technique includes removing material from the substrate only from a region defined by the nominal or maximum material-removal region.