| 1. |
- Ivarson, Anders, et al.
(författare)
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Oxidation dynamics of laser cutting of mild steel and the generation of striations on the cut edge
- 1994
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Ingår i: Journal of Materials Processing Technology. - : Elsevier BV. - 0924-0136 .- 1873-4774. ; 40:3-4, s. 359-374
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Tidskriftsartikel (refereegranskat)abstract
- Over the past two decades CO2 laser cutting has grown from an obscure laboratory technique into an important branch of manufacturing engineering. The most commonly cut materials are steels and a great deal of industrial and scientific research has been carried out on the laser-material interactions that generate a cut. This paper concentrates on the phenomena which give rise to a cyclic cutting event when a CO2 laser in conjunction with an oxygen jet is used to cut mild steel. The nature of the cut edge striation produced by the cyclic oxidation reaction is explained thoroughly and a possible oxidation cycle is postulated. It is demonstrated that the key to understanding the cyclic nature of the cutting event is the self-limiting nature of the oxidation of the steel in the cut zone
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| 2. |
- Powell, John, et al.
(författare)
-
International congress on applications of lasers and electro-opticsd
- 1992
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Ingår i: Proceedings of the laser materials processing symposium, ICALEO '92. - Orlando, Fla. : Laser institute of America. - 0912035498 ; , s. 433-442
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Konferensbidrag (refereegranskat)abstract
- This paper begins by describing the thermal inputs to the cut zone when cutting mild steel with oxygen as the assist gas. The investigation concentrates on the chemical thermo-dynamics in the cut zone and pays particular attention to the influence of oxygen dilution. A detailed experimental program has allowed the authors to theoretically clarify why the process is highly sensitive to small levels of contamination of the oxygen jet.
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| 3. |
- Powell, John, et al.
(författare)
-
Role of oxygen purity in laser cutting of mild steel
- 1992
-
Ingår i: Proceedings of the laser materials processing symposium, ICALEO '92. - Orlando, fla : Laser institute of America. - 0912035498 ; , s. 433-442
-
Konferensbidrag (refereegranskat)abstract
- This paper begins by describing the thermal inputs to the cut zone when cutting mild steel with oxygen as the assist gas. The investigation concentrates on the chemical thermo-dynamics in the cut zone and pays particular attention to the influence of oxygen dilution. A detailed experimental program has allowed the authors to theoretically clarify why the process is highly sensitive to small levels of contamination of the oxygen jet.
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