Experiment and Numerical Analysis of Deformation and Collision Behavior during Al/Cu Magnetic Pulse Welding
Bibliographic record
Abstract
To investigate high-speed deformation and collision behavior during Al/Cu magnetic pulse welding, experiment and numerical analysis were performed.An Al plate and a Cu plate were used for a flyer plate and a parent plate, respectively.Charging energy stored in a capacitor and a gap between the plates were changed in the range from 1.0 kJ to 6.0 kJ and from 1.0 mm to 2.5 mm, respectively.The charging energy from 4.0 kJ to 6.0 kJ were available to weld them with the gap from 1.5 mm to 2.5 mm.In contrast, when the charging energy of 3.0 kJ was used, the welding was achieved at the gap in 2.0 mm and 2.5 mm.Numerical analysis of deformation behavior revealed that the Al flyer plate deforms like a cantilever beam.The initial collision velocity increased with increasing the charging energy and the gap of plates.Whereas, the initial collision angle increased with only increasing the gap of plates and it did not depend on the charging energy.As the collision progressed, the collision velocity decreased and the collision angle increased.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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".