In-Situ Morphic Manufacturing for Closed-Loop Part Correction
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Solution Overview
Problem
Conventional manufacturing systems face challenges in providing accurate and efficient feedback from inspection processes to manufacturing cycles, leading to human error, time-consuming manual interventions, and delayed correction of defects, which affects the precision and consistency of finished parts.
Innovation Solution
The morphic manufacturing approach integrates in situ inspection and feedback into the manufacturing process using 3D imaging and dynamic inspection feedback, allowing real-time adjustments to ensure parts meet design specifications without removing them from the manufacturing tool's work envelope, thereby automating the inspection and adjustment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual inspection and feedback processes are used, then human operators can perform checks on the machine, but human error and time-consuming manual interventions occur
Solution Approach 1:
The patent replaces manual inspection processes with automated optical measurement systems and sensors that capture part geometry and compare it against CAD models, eliminating human error and significantly reducing inspection time while maintaining high accuracy
Solution Approach 2:
The system implements automated feedback loops where measurement data is immediately compared against design specifications and deviations are communicated back to the manufacturing process, enabling real-time corrections without manual intervention
2Measurement precision
If parts are removed from the manufacturing tool for inspection, then thorough inspection can be performed, but the manufacturing cycle is delayed
Solution Approach 1:
The patent merges the inspection function with the manufacturing tool by integrating measurement systems directly into the workstation, allowing parts to be inspected in situ without removal, thereby maintaining manufacturing cycle time while achieving thorough inspection
Solution Approach 2:
The manufacturing workstation is designed to perform multiple functions including manufacturing operations and inspection measurements, eliminating the need for separate inspection equipment and part removal while maintaining comprehensive inspection capabilities
3Reliability
If conventional inspection feedback processes are used, then defects can be detected, but delayed correction of defects affects precision and consistency
Solution Approach 1:
The system performs inspection measurements immediately after manufacturing operations and before parts leave the workstation, enabling early detection of defects while the part is still accessible and corrections can be made promptly to maintain precision and consistency
Solution Approach 2:
Automated measurement systems provide immediate feedback on part geometry and deviations, enabling real-time adjustments to manufacturing parameters or corrective operations while the part is still in the workstation, thereby maintaining high precision and consistency
Data Source
AI summary
A manufacturing control system for an additive, subtractive, or hybrid machining system implements a morphic manufacturing approach that integrates in situ inspection and related decision-making into the manufacturing process. After execution of a machining or deposition operation, the system performs a sensor scan to collect sensor measurement data for the resulting part while the part remains in the manufacturing work cell. The measurement data is compared with an as-designed digital model of the part to determine whether further machining or deposition is necessary to bring the finished part into tolerance with the model. If necessary, the system performs another additive and/or subtractive manufacturing operation on the part based on analysis of the measurement data to bring the part into tolerance. The measured inspection data can be stored in association with each manufactured part for auditing purposes or for creation of part-specific digital twins.