Laser consolidation of TI-6AL-4V alloy to build functional net-shape airfoils with embedded cooling channels
Bibliographic record
Abstract
The Integrated Manufacturing Technologies Institute of the National Research Council of Canada (NRC-IMTI) has been developing an advanced laser consolidation (LC) process that produces functional net-shape complex components layer by layer directly from a CAD file without moulds or dies. This platform technology has many potential applications in aerospace, automotive, power generation, medical device, defense and other manufacturing sectors. This work was completed in collaboration between NRC-IMTI and GE Global Research to explore the feasibility of using the innovative LC process to build functional net-shape Ti-6Al-4V airfoils with embedded cooling channels. The results demonstrated that the LC Ti-6Al-4V airfoils are metallurgically sound without any cracks or porosity. The dimensions of LC airfoils accurately represent the design features described in a CAD model. This work demonstrates that the laser consolidation process provides an excellent opportunity to materialize the innovative designs, such as airfoils with embedded cooling channels, which may be very difficult or impossible to manufacture using other conventional methods.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".