Vorrichtung und Verfahren zum schneidenden Bearbeiten von Werkstuecken mit einem Laserstrahl
Bibliographic record
Abstract
DE 102008027524 B3 UPAB: 20090928 NOVELTY - The laser cutting unit is moved conventionally, relative to the workpiece (1.4). In a novel arrangement, the cutting nozzle (1.3) fastened to the cutting head (1) can also be moved in two axial directions, parallel to the surface of the workpiece. This additional movement is caused by a separate drive system. The new arrangement increases the working area of the laser cutter. The focusing optic (1.2) is a telecentric planar field optic and/or a telecentric F-theta optic. DETAILED DESCRIPTION - The cutting nozzle rotates about an axis directed at right angles to the workpiece surface. The rotational axis of the nozzle, or of its opening, is located eccentrically with respect to the longitudinal axis of the cutting head. An eccentric drive moves the cutting nozzle. A double-eccentric drive is used, with two drive motors. These are independently-controlled. The eccentric drives are connected. They are arranged one inside the other, or one above the other. Through combined nozzle movement and beam (10) deflection, the operational area achieved on the workpiece reaches at least 7 mm2. The cutting nozzle is alternatively moved by two independently-controlled linear drives. The drives used are: moving coil, pneumatic or hydraulic. The linear drives act on the cutting nozzle from the radial exterior of the unit, and are articulated to it. The laser beam and cutting gas are directed through the nozzle onto the workpiece. The nozzle opening is circular, elliptical or slot-shaped. The nozzle is held by a cross-slide assembly with linear drives to each slide. The beam deflection includes an oscillatory motion. AN INDEPENDENT CLAIM IS INCLUDED FOR the corresponding laser cutting method. USE - Agile laser cutting equipment with a mirror deflecting the focused beam. ADVANTAGE - By superimposing mechanical and optical deflections, variation of cutting direction can be achieved with smaller radii. This accelerates the cutting operation, increasing production and saving cutting gas. At the same time, stressing of the equipment by accelerations and torques is reduced. Wear is reduced and equipment life is extended. Movements of individual drives become smoother. Agility is increased without increase in the size of the gas opening, so cutting gas is conserved. The additional drives permit simpler optics to be used if required. This minimizes cost. Advantages of differing types of nozzle drives are discussed further in the disclosure. Gas flow is readily matched with the cutting requirement and either conical-cylindrical or Laval nozzles can be used.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.001 | 0.005 |
| Research integrity | 0.002 | 0.004 |
| Insufficient payload (model declined to judge) | 0.077 | 0.059 |
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".