Electro-polishing Complex Shapes Using Disposable Conductive Fillers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for electro-polishing metal leading edges of composite fan blades are challenging due to their complex shapes, leading to difficulties in achieving precise and effective polishing.
Innovation Solution
An apparatus and method involving an electrode configured to closely engage complex shapes, electrically connected to a power supply, with the object submerged in an electrolyte solution, allowing for controlled and precise electro-polishing by positioning the electrode within cavities of the metal leading edges to facilitate material removal from the outer surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional electro-polishing methods are used on complex shapes, then the polishing process can be applied to simple geometries, but the polishing quality deteriorates due to racking, fixture marks, and burns on complex shapes
Solution Approach 1:
The patent introduces an intermediary conductive material that fills the cavity of the complex shape and makes electrical contact with the workpiece. This intermediary serves as a mediator between the electrical pole and the complex shape, enabling uniform current distribution and eliminating harmful effects like racking, fixture marks, and burns while achieving high polishing quality on intricate geometries
2Adaptability or versatility
If conventional electro-polishing methods are used on complex shapes, then the equipment setup is simple, but the ability to polish intricate geometries deteriorates
Solution Approach 1:
The patent employs a disposable conductive filler material that is placed inside the cavity and used for a single polishing operation. This inexpensive, single-use intermediary eliminates the need for complex, reusable electrode configurations while enabling the polishing of any complex shape, thereby increasing adaptability without proportionally increasing device complexity
3Manufacturing precision
If conventional electro-polishing methods are used on complex shapes, then the process can handle simple geometries, but the current distribution becomes non-uniform on complex shapes
Solution Approach 1:
The conductive filler material is placed locally inside the cavity of the complex shape, conforming to the specific geometry. This localized placement of conductive material ensures uniform current distribution across the entire surface of complex geometries, enabling precise polishing while accommodating any shape complexity
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 approach minimizes damage and improves polishing quality by reducing racking, fixture marks, and burns, enabling better polishing of complex shapes, particularly in areas with intricate geometries that conventional methods struggle to address.
Implementation Method 1
passing current through the electrode
Data Source
AI summary
An apparatus for electro-polishing an object that has a complex shape that defines a cavity. The apparatus includes an electrode that is configured to closely engage a predetermined location of the object. The electrode is configured to be electrically connected to a power supply.