Casting Interface Layer for Laser Material Addition
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Solution Overview
Problem
Existing methods for structural repairs and modifications of internal combustion engine components, such as arc welding, require significant energy, are difficult to automate, and lack the ability to tailor material properties for specific applications.
Innovation Solution
A system comprising a controller, a pretreating machine, and an additive manufacturing machine that forms an interface layer on components, allowing for the selective deposition of material layers with controlled properties, thereby reducing thermal stresses and enabling efficient, automated material addition with improved bond strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If arc welding is used for structural repair or modification, then material can be added to components, but a relatively large amount of energy is required due to preheating requirements
Solution Approach 1:
The patent replaces the arc welding process with a laser-based additive manufacturing system. The laser beam provides localized, controlled heating without the extensive preheating required by arc welding, thereby significantly reducing energy consumption while maintaining the ability to add material and strengthen components.
Solution Approach 2:
The laser beam applies heat locally only to the specific area where material needs to be deposited, rather than preheating large portions of the component as required by arc welding. This localized heating approach reduces overall energy consumption while achieving the necessary bonding conditions at the deposition site.
2Strength
If arc welding is used for structural repair or modification, then material can be added to components, but it is difficult to automate and relies upon a skilled operator
Solution Approach 1:
The patent replaces the manual arc welding process with an automated laser-based additive manufacturing system. The laser beam can be precisely controlled through computer programming and automation, eliminating the need for skilled operators to manually manipulate welding torches while maintaining high-quality bonding results.
Solution Approach 2:
The system incorporates automated material deposition and laser control that can operate autonomously based on pre-programmed parameters. The process self-regulates the heating, material flow, and deposition rate, reducing reliance on operator skill and enabling automation.
3Strength
If arc welding is used for structural repair or modification, then material can be added to components, but it does not provide an ability to tailor qualities of added material for a target application
Solution Approach 1:
The laser-based additive manufacturing system enables different material properties to be created at different locations and layers. By controlling the laser parameters, material composition, and deposition conditions, the system can tailor the qualities of added material specifically for the target application, such as creating gradient structures or incorporating different alloys in specific regions.
Solution Approach 2:
The system can deposit multiple materials with different properties in a controlled sequence, creating composite structures with tailored characteristics. This allows for the integration of materials with complementary properties to achieve specific performance requirements for different parts of the component.
4Strength
If traditional methods are used for component modification, then structural changes can be made, but remanufacturing and prototyping time is increased
Solution Approach 1:
The system allows for rapid prototyping and modification by directly depositing material in the desired final configuration without requiring preliminary machining or extensive preparation. The additive process builds components layer by layer according to digital models, significantly reducing the time required for remanufacturing and prototyping while maintaining structural integrity.
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 remanufacturing and prototyping time, lowers costs, and allows for precise modification of component geometry and properties without the need for re-machining or re-casting, while mitigating thermal stresses and enhancing bond strength.
Implementation Method 1
The forming beam is configured to substantially melt the first amount of material, thereby forming a first layer of a first material deposit on the interface layer
Data Source
AI summary
A system includes a controller, a pretreating machine, and an additive manufacturing machine. The pretreating machine is coupled to the controller. The pretreating machine includes a pretreater structured to form an interface layer on a component. The additive manufacturing machine is coupled to the controller. The additive manufacturing machine includes a material feed and a forming beam. The material feed is configured to selectively provide a first amount of material on the interface layer. The forming beam is configured to substantially melt the first amount of material, thereby forming a first layer of a first material deposit on the interface layer.