Electroforming Composite Superalloy Components
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Solution Overview
Problem
Traditional electroforming processes are limited in producing high-strength structural components capable of operating at temperatures above 500° F (260° C), with material options like nickel and copper alloys having restricted strength and temperature capabilities, and challenges in incorporating multiple alloying elements into the electrolyte bath.
Innovation Solution
An electroforming process that incorporates pre-alloyed superalloy or high-strength alloy powders into the electrolyte solution, followed by heat treatments to enhance metallurgical bonding and precipitation, allowing for the creation of composite electroformed components with improved strength and high-temperature capabilities, up to 1200° F (650° C).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional electroforming processes use conventional alloys like nickel and copper, then the process is simple and easy to manufacture, but the strength and temperature capability are limited to below 500° F (260° C)
Solution Approach 1:
The patent applies composite materials by incorporating pre-alloyed superalloy or high-strength alloy powders into the electrolyte solution during electroforming. This creates a composite electroformed component with a metal matrix containing dispersed alloy particles, achieving enhanced strength and high-temperature capability (up to 1200° F or 650° C) while maintaining the electroforming process simplicity
Solution Approach 2:
The patent changes the chemical composition parameter of the electrolyte bath by adding pre-alloyed powder particles. This parameter change enables the deposition of composite materials with improved mechanical properties and temperature resistance, resolving the contradiction between strength improvement and process complexity
2Strength
If multiple alloying elements are incorporated into the electrolyte bath, then the strength and temperature capability improve, but the difficulty of manufacturing increases
Solution Approach 1:
The patent applies preliminary action by pre-alloying the powder particles before adding them to the electrolyte bath. The alloying elements are already combined in the powder particles, so the electroforming process only requires suspending these pre-alloyed particles in the electrolyte, significantly simplifying the manufacturing process while achieving multi-element composition in the final component
Solution Approach 2:
The pre-alloyed powder particles serve as an intermediary carrier that delivers multiple alloying elements to the electrolyte bath. This intermediary approach avoids the complexity of separately managing multiple alloying elements in the electrolyte, making it easier to incorporate multiple elements while maintaining process simplicity
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 process enables the production of high-strength, thick electroformed components with enhanced mechanical properties, including increased tensile strength, hardness, and ductility, suitable for structural applications at elevated temperatures.
Implementation Method 1
electroforming a composite metal layer onto a mandrel from a mixture solution, the mixture solution comprising an electrolytic solution with dispersed metallic powder particles therein
Implementation Method 2
A electroforming process can create, generate, or otherwise form a metallic layer of a desired component. In one example, a mold or base for the desired component can be submerged in an electrolytic liquid and electrically charged. The electric charge of the mold can attract an oppositely-charged electroforming material through the electrolytic solution.
Implementation Method 3
performing at least a first heat treatment on the composite electroformed component within a first temperature range of 600-1200° C.
Implementation Method 4
performing an aging heat treatment on the composite electroformed component, subsequent to the first heat treatment, within a second, aging temperature range of 500-800° C. to form precipitates in the composite electroformed component
Implementation Method 5
performing an aging heat treatment on the composite electroformed component, subsequent to the first heat treatment, within a second, aging temperature range of 500-800° C. to form precipitates in the composite electroformed component
Implementation Method 6
The first heat treatment can dissolve the metallic powder particles into the metal matrix to define a second matrix, and wherein the precipitates are formed within the second matrix
Data Source
AI summary
An electroforming system and method includes disposing an electrode defining a mandrel within a mixture solution, and applying a voltage to the electrode in the mixture solution to form a composite metal layer on the electrode. The composite metal layer can have particles incorporated within a metal matrix and define a composite electroformed component.