Hybrid Setter Structure for Custom Investment Casting Cores
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Solution Overview
Problem
The challenge of extensive inventory and long lead times in manufacturing investment casting cores due to the need for different setters with tight geometrical tolerances and varying materials, especially for customized cores, is addressed by providing a hybrid setter system with a base section and cover section that can be coupled mechanically, allowing for customizable and efficient heat treatment.
Innovation Solution
A hybrid setter system comprising a base section and a cover section, where the cover section can be made of a different material than the base section, and both sections can be manufactured using different processes, allowing for customizable geometrical tolerances and minimizing the need for extensive inventories and long lead times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a different setter is used for each different investment casting core design, then tight geometrical tolerances are maintained, but inventory complexity and lead time increase significantly
Solution Approach 1:
The setter is divided into a base section and a cover section that can be mechanically coupled together. The base section provides structural support while the cover section with a customizable profile maintains geometrical tolerances. This segmentation allows the cover section to be swapped for different core designs without replacing the entire setter, reducing inventory complexity while maintaining precision.
Solution Approach 2:
The base section is designed as a universal component that can support multiple different cover sections. Each cover section is configured for a specific investment casting core design, but all share the same base section interface. This multi-functionality allows a single base section to serve multiple purposes with different cover sections, reducing the need for extensive inventor
2Reliability
If different materials are used for core and setter, then material-specific shrinkage profiles are accommodated, but the number of molds required increases
Solution Approach 1:
The cover section is designed with material-specific features and profiles tailored to accommodate the shrinkage characteristics of particular investment casting core materials. The base section maintains universal geometric features, while the cover section provides localized customization for different material shrinkage profiles, reducing the need for completely different molds for each material type.
3Manufacturing precision
If customized setters are manufactured for each unique investment casting core, then geometrical tolerances are ensured, but manufacturing lead time increases
Solution Approach 1:
By segmenting the setter into standardized base section and customizable cover section, the manufacturing process can be optimized. The base section can be manufactured using standard processes and held in inventory, while only the cover section requires customization for each core design. This significantly reduces manufacturing lead time compared to producing entirely custom setters, while still ensuring geometrical tolerances through the customized cover section.
Data Source
AI summary
A setter for an investment casting core is provided. The setter may include: a base section; and a cover section configured to mechanically couple to the base section and having a profile for receiving the investment casting thereon. A setter array for a plurality of investment casting cores is further provided. A method for supporting an investment casting core during heat treatment using the setter is also provided.