High-efficiency operation of a 5-cm gain length supersonic chemical oxygen-iodine laser

Rittenhouse, Tilghman L.; Phipps, Steven P.; Helms, Charles A.; Truesdell, Keith A.

doi:10.1117/12.236887

Cited by 12 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 Long duration, high power industrial COIL operation has been addressed in several papers. [9][10][11][12][13][14] General issues associated with the industrialization of COIL were discussed by Scott and Truesdell. 15 Recently, COIL cutting data has appeared in the literature.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of cutting thick aluminum and steel with a chemical oxygen–iodine laser using an N2 or O2 gas assist

Carroll

Rothenflue

1997

Journal of Laser Applications

View full text Add to dashboard Cite

A chemical oxygen-iodine laser (COIL) was used for cutting aluminum and carbon steel. Cut depths of 20 mm were obtained in aluminum and 41 mm in carbon steel using an N 2 gas assist and 5-6 kW of power on target. The same laser at the same power level produced a cut depth of 65 mm in carbon steel with an O 2 gas assist; a low quality cut to a depth of nearly 100 mm in carbon steel was demonstrated. These data are compared with existing COIL and CO 2 laser cutting data. COIL cuts carbon steel and stainless steel at approximately the same rate. For a given cut depth, power and spot size, COIL cuts steel approximately three times faster than a CO 2 laser using an inert gas assist. COIL cutting speeds in carbon steel are improved by approximately a factor of three when an O 2 assist is used in lieu of an N 2 gas assist. With an N 2 gas assist, COIL cuts aluminum at approximately the same rate as CO 2 cuts steel. To improve the agreement between data and an existing theoretical cutting model, an empirical correction factor was added to the model; this modification provides excellent agreement with data.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental study of cutting thick aluminum and steel with a chemical oxygen–iodine laser using an N2 or O2 gas assist

Carroll

Rothenflue

1997

Journal of Laser Applications

View full text Add to dashboard Cite

show abstract

“…Meanwhile, research towards making COIL an industrial device began in the latter half of the 1980's [9]. Long duration, high power industrial COIL operation was addressed in several papers [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

<title>Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials</title>

et al. 2000

View full text Add to dashboard Cite

A chemical oxygen-iodine laser (COIL) was used for cutting aluminum, titanium,inconel and copper plates. The laser was operated with a stable resonator having an intracavity aperture to produce a circular COIL beam with very few transverse modes. The multimode focal spot diameter was calculated to be 0.24 mm. The new aluminum cut was of particularly high kerf edge quality. These COIL cutting data are compared with an existing theoretical laser cutting model. Using thermophysical data for aluminum, titanium, inconel and copper, this theory agrees very well with the data. To test the versatility ofthe model, the effects of different assumptions are examined; different assumptions produced very little effect on model predictions at high cutting speeds and a small difference at very slow cutting speeds. Overall, the theoretical model provides good agreement with experiments for a wide variety of metals.

show abstract

“…9 Long duration, high power industrial COIL operation was addressed in several papers. [10][11][12][13][14][15] Recently, COIL cutting data has appeared in the literature. Yasuda et al 4 obtained the first results for cutting stainless steel which were quite promising.…”

Section: Introductionmentioning

confidence: 99%

Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials

Kar

Carroll

Latham

et al. 1999

Journal of Laser Applications

View full text Add to dashboard Cite

A chemical oxygen-iodine laser (COIL) was used for cutting aluminum, titanium, inconel and copper plates. The laser was operated with a stable resonator having an intracavity aperture to produce a circular COIL beam with very few transverse modes. The multimode focal spot diameter was calculated and measured to be approximately 0.24 mm. The new aluminum cut was of good kerf edge quality. These COIL cutting data are compared with an existing theoretical laser cutting model. Using thermophysical data for aluminum, titanium, inconel and copper, this theory agrees very well with the data. To test the versatility of the model, the effects of different assumptions are examined; different assumptions produced very little effect on model predictions at high cutting speeds and a small difference at very slow cutting speeds. Overall, the theoretical model provides good agreement with experiments for a wide variety of metals.

show abstract

High-efficiency operation of a 5-cm gain length supersonic chemical oxygen-iodine laser

Cited by 12 publications

References 0 publications

Experimental study of cutting thick aluminum and steel with a chemical oxygen–iodine laser using an N2 or O2 gas assist

Experimental study of cutting thick aluminum and steel with a chemical oxygen–iodine laser using an N2 or O2 gas assist

<title>Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials</title>

Cutting performance of a chemical oxygen-iodine laser on aerospace and industrial materials

Contact Info

Product

Resources

About