Studies on the laser spot welding of steel/magnet dissimiliar materials
Why this work is in the frame
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Bibliographic record
Abstract
The paper studies the laser spot welding of SPCC steel and NdFeB permanent magnet. Results show that during welding process the two metals quickly melt, mix and then solidify to form a weld that joins two specimens together. The hardness in the joint is not uniform: the heat affected zone (HAZ) has a lower hardness than NdFeB base metal; within the nugget, the region adjacent to the fusion line has the highest hardness while the middle part of nugget has the lowest hardness in the joint. Hot cracks are apt to occur at the interface between nugget and magnet base metal, whereat the cracks propagate and lead to joint failure during shear tests. The fracture is intergrannular and is a typical brittle fracture. To increase the joint strength and prolong the service life of welded components, it is necessary to take some metallurgical and technological measures to improve the bonding quality between nugget and magnet base metal.
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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) | 0.010 | 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 it