Scratch Depth Comparator With Sloping Sidewalls
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Solution Overview
Problem
Existing scratch depth comparators are imprecise due to difficulties in forming real-world scratch replicas, tool deflection, and inefficient grandmaster formation processes, leading to costly restarts and inaccuracies.
Innovation Solution
A scratch depth comparator assembly with sloping sidewalls and modular formation, allowing for precise scratch depths and efficient electroforming of comparators using a substrate with attached pieces, each with unique scratch depths, and multiple layers of metal electroforming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a ninety-degree angle groove is formed by tilting the block forty-five degrees, then the groove can be formed using standard milling machinery, but the groove does not accurately mimic real-world scratches and additional complexity is introduced into the machining process
Solution Approach 1:
The patent changes the groove angle parameter from the standard ninety-degree angle to an eighty-degree angle. This parameter modification allows the groove to more accurately replicate real-world scratch geometries while still being formable with standard milling machinery, thus resolving the contradiction between manufacturing ease and scratch accuracy.
2Productivity
If multiple scratches are formed in the block to create the grandmaster, then a complete scratch depth comparator can be produced, but tool deflection causes imprecise scratches or tool tip breaking requiring process restarts
Solution Approach 1:
The patent applies counterbalancing forces during the scratching process to compensate for tool deflection. By applying opposing forces that counteract the deflection tendency, the tool maintains its intended position and orientation, producing precise scratches within tight tolerances throughout the grandmaster formation process without tool tip breaking or requiring restarts.
3Manufacturing precision
If the tool applies sufficient force to overcome deflection forces, then scratches can be formed, but the tool tip often breaks due to the required force
Solution Approach 1:
The patent uses counterbalancing forces to offset tool deflection during scratching, eliminating the need to apply excessive force that would cause tool tip breaking. The counterbalancing mechanism supports the tool, allowing precise scratch formation while maintaining tool tip integrity throughout the grandmaster creation process.
4Ease of operation
If existing scratch depth comparators are used, then workers have a reference for scratch acceptability, but the comparators are imprecise due to difficulties in forming real-world scratch replicas
Solution Approach 1:
The patent modifies the groove angle parameter to eighty degrees, which more accurately replicates the geometry of real-world scratches. This parameter change enables the scratch depth comparator to provide workers with an accurate reference for assessing scratch acceptability, resolving the contradiction between ease of operation and replica accuracy.
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 solution provides accurate scratch depth comparisons and efficient production of comparators with tight tolerances, mimicking real-world scratches effectively and reducing production costs.
Implementation Method 1
electroforming a plurality of layers of metal on the negative template to form the scratch depth comparator
Data Source
AI summary
A scratch depth comparator includes a metal block, a first scratch, and a second scratch. The metal block includes a top surface. The first scratch is formed in the top surface with a first scratch depth. The second scratch is formed in the top surface with a second scratch depth that is different than the first scratch depth. The first scratch is formed with two sidewalls sloping from the top surface and located at an angle relative to one another. The angle is about fifty degrees up to about sixty-six degrees.