SiC Component Manufacturing Using a Near-Net-Shape Core
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing manufacturing methods for SiC-containing components in plasma processing apparatuses face challenges in achieving high accuracy and efficiency due to the time-consuming film formation process and poor processability of SiC.
Innovation Solution
A method involving the preparation of a core material with a shape similar to the final component, forming a SiC stacked portion on the core material through film deposition, and then removing and processing this portion to achieve the final shape, thereby enhancing accuracy and reducing processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If SiC film is formed directly on a substrate to create the final component shape, then the component achieves high hardness and heat resistance, but the manufacturing time is excessively long and processing accuracy is poor
Solution Approach 1:
The manufacturing process is segmented into distinct stages: first forming a core material with the basic shape, then forming the SiC film only on the surface portions that require high hardness and heat resistance, and finally removing excess SiC film. This segmentation allows the SiC film formation to be focused on specific areas rather than requiring complete coverage, significantly reducing manufacturing time while maintaining precision where needed.
Solution Approach 2:
The core material is prepared in advance with a shape that closely matches the final component geometry before SiC film formation. This preliminary shaping action reduces the amount of SiC film that needs to be deposited and subsequently removed, thereby reducing overall manufacturing time while ensuring high accuracy in the final component shape.
2Ease of manufacture
If SiC is processed directly into the final shape after film formation, then the component achieves desired geometry, but the processing is extremely difficult and time-consuming
Solution Approach 1:
The manufacturing process is divided into segments where the core material provides the basic shape and the SiC film is applied only to surface portions requiring enhanced properties. Excess SiC film is then removed, avoiding the need to process large amounts of SiC material into complex shapes, which significantly improves ease of manufacture and productivity.
Solution Approach 2:
The core material serves as an intermediary that provides the basic component shape and facilitates easier processing. Instead of directly shaping the final SiC component, the core material acts as a template that simplifies the overall manufacturing process, making it more manageable and efficient.
3Manufacturing precision
If a graphite member is used as core material and SiC is formed over it, then the component achieves high accuracy, but the core material removal process is complex
Solution Approach 1:
The core material is strategically removed only from portions where it is not needed in the final component. This selective extraction simplifies the overall process by eliminating unnecessary steps while maintaining high manufacturing precision in the areas where the SiC film remains intact.
Solution Approach 2:
The SiC film is formed selectively on specific surface portions of the core material where high hardness and heat resistance are required. This local application of SiC coating allows the core material to be removed from areas where it is not needed, simplifying the overall process while maintaining component accuracy in critical areas.
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 method allows for the high-accuracy manufacturing of SiC-containing components with improved efficiency, as it shortens the time required for SiC layer formation and final shape processing, while maintaining the high hardness and heat resistance of SiC.
Implementation Method 1
forming a SiC stacked portion on the core material by forming a SiC film
Data Source
AI summary
Provided is a method for manufacturing a component for a plasma processing apparatus, the method comprising steps of: (A) preparing a core material having a shape similar to but smaller than a final shape of the component; (B) forming a SiC stacked portion on the core material by forming a SiC film; and (C) removing at least a portion of the SiC stacked portion to form a SiC layer and process it into the final shape.