Feedback control of processing temperature in laser beam hardening of production dies
Bibliographic record
Abstract
Automotive draw and line dies are often subject to high wear and tear in the areas with convex radii during volume production and require heat treatment to improve the mechanical properties in these areas in order to increase the operating life of the die. Laser beam transformation hardening has been proven to be a viable technology for such type of heat treatment. It has been demonstrated that laser hardening process provides better overall hardness and more consistent levels of quality compared to conventional heat treatment processes. Experimental results show that the processing temperature during laser beam hardening is one of main key factors in achieving the highest hardness on the die surface. At Magna, a laser processing system has been integrated for implementation of laser beam hardening of dies, which includes expanded beam spot, precise processing temperature control, as well as off-line programming and automatic tool path generation. This paper describes the practice of laser hardening dies, including influence on the process of different types of material, analysis of laser hardened materials, the effect of the geometry of processing area on the processing temperature and the requirement for temperature control in process.
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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) | 0.000 | 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".