Multi-Metal Additive Manufacturing for Integral Leak-Safe Parts
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Solution Overview
Problem
Conventional additive manufacturing processes are limited to single material usage, requiring separate printing and assembly of parts made from different materials, which increases complexity, weight, and the risk of leakage in applications like rocket engines.
Innovation Solution
A multi-material additive manufacturing system that uses multiple powder-based metallic materials, allowing for the integration of different sections into a single piece by aligning and fusing them using energy sources like lasers or electron beams, eliminating the need for additional joining processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate printing and assembly of parts made from different materials is used, then manufacturing flexibility is improved, but device complexity and risk of leakage increase
Solution Approach 1:
The patent combines multiple additive manufacturing systems into a single integrated system that can print with different metallic materials simultaneously. The system merges the printing capabilities, energy sources, and control systems to create a unified platform that eliminates separate printing and assembly operations while maintaining material versatility.
Solution Approach 2:
The additive manufacturing system is designed with universal capabilities to handle multiple metallic materials through a single integrated platform. The energy source and printing mechanism can adapt to different material types, allowing the system to perform multiple printing functions without requiring separate dedicated systems for each material.
2Adaptability or versatility
If separate printing and assembly of parts made from different materials is used, then manufacturing flexibility is improved, but weight increases
Solution Approach 1:
The patent combines multiple additive manufacturing systems into a single integrated system that can print with different metallic materials simultaneously. The system merges the printing capabilities, energy sources, and control systems to create a unified platform that eliminates separate printing and assembly operations while maintaining material versatility.
3Adaptability or versatility
If multiple separate print systems are used for different materials, then material versatility is improved, but manufacturing time increases
Solution Approach 1:
The patent combines multiple additive manufacturing systems into a single integrated system that can print with different metallic materials simultaneously. The system merges the printing capabilities, energy sources, and control systems to create a unified platform that eliminates separate printing and assembly operations while maintaining material versatility.
Solution Approach 2:
The integrated system enables continuous printing operations with different materials in a single uninterrupted process. The system maintains continuous useful action by seamlessly switching between materials and eliminating idle time associated with transferring parts between separate printing systems and assembly operations.
4Ease of manufacture
If separate printing and assembly of parts is used, then ease of manufacture is improved, but reliability decreases due to increased leakage risk
Solution Approach 1:
The patent combines multiple additive manufacturing systems into a single integrated system that can print with different metallic materials simultaneously. The system merges the printing capabilities, energy sources, and control systems to create a unified platform that eliminates separate printing and assembly operations while maintaining material versatility.
Solution Approach 2:
The system creates composite structures by integrating different metallic materials into a single monolithic part through additive manufacturing. The resulting hybrid structures combine the advantages of different materials while eliminating interfaces that would require separate joining operations, thereby improving reliability and reducing leakage risk.
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 reduces the number of components, weight, and manufacturing time, while enhancing the mechanical properties and reducing the risk of leakage by creating integral parts with tailored microstructures and compositions, such as in rocket engine components like oxidizer domes and injector plates.
Implementation Method 1
an energy source configured to melt and fuse the first powder metallic material and form the first section in a layer-by-layer fashion
Implementation Method 2
The energy source can be a laser or an electron beam
Implementation Method 3
the second print system comprises an energy source configured to melt and fuse a portion of the first section and the second powder metallic material together at an interface between the first and second sections
Data Source
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AI summary
Powder-based additive manufacturing processes for producing integral parts with multiple metallic materials are disclosed. The integral parts are printed as single pieces by joining different metallic materials together during printing. A combination of different powder-based additive manufacturing processes or the same process can be used to produce the integral part.