Principles of supersonic oxygen jet forming for Lasox cutting process
Bibliographic record
Abstract
Lasox, a hybrid laser-assisted oxygen-cutting technology, was developed not long time ago. The process is realized by the super sonic oxygen jet accomplished with laser beam with rather moderate power about 2kW. The major role is played by oxygen cutting jet. In certain, well known, minimum laser preheatening conditions stable heterogeneous iron-oxygen combustion reaction takes place on cutting front. One of the major problems is optimisation supersonic cutting head with de’Laval nozzle witch produces effective supersonic oxygen jet. In this work simple principle of supersonic nozzle parameters selection for Lasox cutting process is presented. Postulated, that for good quality cuts the jet is to be over expanded or designed: smooth with a minimum of shock disks and other peculiarities. Flow inside cut kerf is to be supersonic, with good impact. The motion of the gas inside nozzle is considered as an isentropic process. These conditions are enough to construct nozzle geometry able to cut required plate thickness with required kerf width. In such a way method of supersonic nozzle geometry selection for thick section cutting Lasox is proposed. Known experimental points are in good agreement with theoretical prediction.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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 teacher head, 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".