Selective Brake Component Anodizing Using a Fluid Separation Barrier
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Solution Overview
Problem
Existing anodising methods for vehicle brake components are inefficient in selectively coating specific surface regions, often requiring time-consuming closure caps and additional process steps, which can degrade material properties and functional capabilities.
Innovation Solution
An anodising system with an electrolyte source generating a flow along the anodised face and a separating fluid source creating a barrier to prevent electrolyte from non-anodised regions, ensuring efficient and flexible selective coating by using a mixture of electrolyte and separating fluid, with controlled outlet openings and pressures to maintain uniform layer thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If closure caps are used to prevent anodising on specific surfaces, then selective surface treatment is achieved, but process time increases and material properties are degraded
Solution Approach 1:
The invention extracts and removes the closure caps from the anodising process entirely. Instead of using physical caps to block electrolyte access, the system uses a directed electrolyte flow approach where electrolyte is supplied only to specific regions through controlled inlet openings, eliminating the need for caps and their associated time-consuming installation and removal steps
Solution Approach 2:
The invention segments the electrolyte supply into multiple independently controllable inlet openings, each directed at specific regions of the component. This allows selective anodising of different surfaces by controlling which inlet openings are active, replacing the binary blocked/unblocked approach of closure caps with a more flexible segmented supply system
2Manufacturing precision
If closure caps are used to protect non-anodised surfaces, then selective coating is achieved, but device complexity increases
Solution Approach 1:
The invention removes the complex closure cap system and its associated positioning, installation, and removal mechanisms. The selective coating is achieved instead through a simpler system of directed electrolyte flow from multiple inlet openings, reducing device complexity while maintaining selectivity
Solution Approach 2:
The invention introduces a flow director as an intermediary element that guides electrolyte from the supply source to specific inlet openings. This mediator enables selective region control through fluid dynamics rather than mechanical blocking, simplifying the overall system architecture
3Reliability
If closure caps are installed and removed for selective anodising, then specific surface regions are protected, but additional process steps are required
Solution Approach 1:
The invention extracts and eliminates the closure cap system entirely, replacing it with a directed electrolyte supply system that achieves the same protective function for non-anodised surfaces without requiring installation or removal steps. Surface quality protection is maintained through controlled electrolyte access rather than physical barriers
Solution Approach 2:
The system achieves automatic region selection through the flow director and inlet opening configuration, eliminating the need for manual cap installation and removal operations. The selective anodising pattern is determined by the system's inherent fluid flow characteristics rather than by operator actions
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 solution allows for efficient and flexible selective coating of brake component surfaces, enhancing wear resistance while maintaining material properties and reducing process complexity, ensuring consistent layer thickness and preventing unwanted anodising on non-intended surfaces.
Implementation Method 1
an electrolyte source which generates an electrolyte flow from an electrolyte outlet opening along a face to be anodised of the component
Implementation Method 2
a separating fluid source for generating a separating fluid flow along a face not to be anodised of the component
Data Source
AI summary
The present disclosure relates to an anodising system for a component of a motor vehicle brake, comprising an electrolyte source which generates an electrolyte flow along a face to be anodised of the component, and a separating fluid source for generating a separating fluid flow along a face not to be anodised of the component. The disclosure furthermore relates to an anodising method.