3D Scanning System for Investment Casting Mold Evaluation

The patent replaces complex X-ray imaging systems with a simpler optical measurement system. A camera captures images of the crucible interior, and image processing algorithms calculate wall thickness by analyzing the geometry of the captured images. This substitution of optical methods for X-ray technology reduces device complexity while maintaining measurement capability.

The patent creates a visual copy (image) of the crucible interior using a camera, then processes this copy to extract wall thickness information. Instead of directly measuring physical dimensions or using complex imaging, the system captures an optical copy and derives measurements through image analysis, simplifying the overall measurement system.

The patent replaces mechanical contact measurement (dial indicators touching the crucible surface) with optical non-contact measurement. A camera captures images of the crucible interior, and software processes these images to determine wall thickness. This eliminates mechanical contact and associated surface damage while maintaining measurement precision.

The patent introduces an intermediary medium (optical field/image capture) between the measurement system and the crucible. Instead of direct mechanical contact, the measurement is performed through captured images that serve as an intermediary representation of the crucible geometry, allowing precise measurement without physical contact.

The patent enables self-service automation where the system automatically captures images, processes them through algorithms, and generates wall thickness measurements without requiring specialized personnel. This automation allows frequent inspection to be performed easily, dramatically increasing productivity while keeping the device relatively simple.

The patent changes the inspection parameter from periodic manual sampling to continuous or frequent automated measurement. By transforming the inspection process into an automated optical measurement system, the frequency of inspection can be increased without proportionally increasing complexity, as the automated system requires minimal intervention.

The patent uses graphite crucibles that provide a chemically inert environment for melting highly reactive alloys. The graphite material does not react with reactive alloys like titanium, preventing contamination. This creates an inert melting environment that preserves alloy purity while maintaining the ability to melt various alloy types.

The patent employs composite crucible designs, such as graphite crucibles with specific coatings or structures, that combine chemical inertness with thermal properties suitable for melting reactive alloys. This composite approach allows versatile alloy melting without the reactivity problems of pure refractory oxide materials.