Developments in Plasma Arc Cutting (PAC) of Steel Alloys: A Review

Asmael, Mohammed; Cinar, Zeki; Zeeshan, Qasim

doi:10.17576/jkukm-2018-30(1)-02

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…6, 8) cutting were determined. The results obtained were compared with published data [1][2][3][4][5][6][11][12]. It was found that the data obtained coincide with the literature with an accuracy of 10 %, which is acceptable in technological calculations.…”

Section: Computer Simulation Of Processes Of Laser Plasma and Laser-plasma Cutting Of Carbon Steelsmentioning

confidence: 53%

“…This negatively affects the working conditions of operators and pollutes the environment, especially if it is necessary to cut steel thicker than 10 mm. In addition, as shown in [2], the choice of parameters of the plasma steel cutting process affects:…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…To simplify the process of computer simulation, generalized thermophysical characteristics of structural carbon steels given in Table 2 were used. Based on [1][2][3][4], conventional technological schemes and modes (Table 3) for plasma and laser cutting 5-and 10-mm steel sheets were chosen.…”

Section: Computer Simulation Of Processes Of Laser Plasma and Laser-plasma Cutting Of Carbon Steelsmentioning

confidence: 99%

“…In the course of computer simulation, according to the recommendations of [1][2][3][4], the modes of cutting processes were selected (Table 3), according to which the temperature distribution in the edges of the cut and the thermal cycles of the studied processes were determined using the SYSWELD software package (Fig. 5-10).…”

Section: Computer Simulation Of Processes Of Laser Plasma and Laser-plasma Cutting Of Carbon Steelsmentioning

confidence: 99%

“…Cold extrusion processes provide high surface quality and precise sizes of stamped blanks and components. This, in turn, reduces or eliminates the need for additional machining by cutting [1,2]. The most common conventional extrusion techniques are the longitudinal (inverse and direct) extrusion methods, which are characterized by the flow of the…”

Section: Introductionmentioning

confidence: 99%

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Forecasting the results of hybrid laser-plasma cutting of carbon steel

Korzhyk

Khaskin²,

Perepichay³

et al. 2020

EEJET

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Обґрунтовано перспективність гібридного ла зерноплазмового різання металів, запропонова но конструкцію інтегрованого плазмотрона для гібридної різання, а також спрогнозовано резуль тати лазерноплазмового різання листових вуг лецевих конструкційних сталей з використанням такого інтегрованого плазмотрона. Показано, що для мінімізації втрат лазерного випроміню вання і отримання максимального проплавлення інтегрований плазмотрон доцільно компонува ти за коаксіальною схемою з осьовим розташу ванням лазерноного випромінювання і мінімаль ним нахилом неплавких електродів (одного або більше), відстань від робочого кінця яких до осі лазерного пучка повинна лежати в інтерва лі 2...3 мм Діаметр плазмоутворюючого сопла повинен ле жати в межах 2-5 мм, а заглиблен ня фокуса під поверхню листа, що розрізаєть ся, при гібридному різанні становити 1-2 мм. Для моделювання процесів лазерного, плазмового та гібридного різання застосовували програмний комплекс SYSWELD, що стало можливим завдя ки врахуванню характерного для різання ефекту видалення ділянок розплавленого матеріалу в зоні різання, яке виконувалося шляхом заміни в ході їх розрахунку максимальної температури пере гріву на початкову (20 °С). Встановлені основні параметри режимів лазерноплазмового різан ня, що дозволяють отримати мінімальний розмір ЗТВ при якості різу, яка наближається до лазер ної. При цьому для гібридного різання потріб но енерговкладення приблизно вдвічі менше, ніж для повітряноплазмового. Підвищення швидкості гібридного різання за рахунок збільшення тиску і витрати робочих газів дозволяє його енерговкла данню зрівнятися з аналогічним показником газо лазерного різання при більш ніж трикратному підвищенню продуктивності процесу Ключові слова: гібридне лазерноплазмове рі зання, інтегрований плазмотрон, вуглецева кон струкційна сталь, термічний цикл, зона терміч ного впливу (ЗТВ), параметри режиму

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Section: Computer Simulation Of Processes Of Laser Plasma and Laser-plasma Cutting Of Carbon Steelsmentioning

confidence: 53%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Computer Simulation Of Processes Of Laser Plasma and Laser-plasma Cutting Of Carbon Steelsmentioning

confidence: 99%

Section: Computer Simulation Of Processes Of Laser Plasma and Laser-plasma Cutting Of Carbon Steelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Forecasting the results of hybrid laser-plasma cutting of carbon steel

Korzhyk

Khaskin²,

Perepichay³

et al. 2020

EEJET

View full text Add to dashboard Cite

show abstract

Optimizing plasma arc cutting processes using physics-based metaheuristic algorithms: a comparative analysis

Pendokhare,

Chakraborty

2024

Int J Interact Des Manuf

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The effect of air plasma cutting on the quality, structural transformations and changes in the chemical composition of structural steel

Górka

2023

Archiv.Civ.Mech.Eng

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The article presents results of tests concerning the effect of technological parameters of the plasma arc cutting process (involving the use of air as plasma gas) on the quality of cut surfaces as well as on structural transformations and changes in the chemical composition of 14 mm-thick plates made of steel S235JR. The tests revealed that the adjustment of optimum parameters of the cutting process enabled the obtainment of cut surfaces representing quality class I in accordance with the ISO 9013 standard. Only the surfaces processed using the maximum cutting rates represented quality class II. The chemical composition analysis was performed using an ICXA 733 X-ray microanalyser (Jeol) equipped with an energy-dispersive spectrometer (EDS) and an ISIS 300 analytical system (OXFORD). The cut surfaces were observed and their characteristic areas were photographed using an X-ray microanalyser and the backscattered electrons (BSE) technique. The phase analysis was performed using a PHILIPS PW 1050 X’Change machine operated in the B–B (Bragg–Brentano) geometry. It was observed that the application of the air plasma cutting process led to the formation of an amorphous phase on the cut surface. The amorphous phase was characterised by a very high nitrogen content (of approximately 1.6%) and a hardness of 750 HV 0.2. The intense nitration resulted from the diffusion of nitrogen from the plasma gas. At the same time, the effect of air plasma arc gases on the liquid metal was responsible for the carburising of the cut surface (up to approximately 0.5%) and the burnout of alloying components (in accordance with the theory of the selective oxidation of chemical elements). The quality of the cut surfaces was primarily affected by the cutting rate. An increase in the cutting rate was accompanied by the deterioration of the geometric features of cut surfaces. In addition, higher cutting rates also translated into the significant reduction of the HAZ width and that of the size of the zone of chemical composition changes. The tests revealed that, in terms of the 14 mm-thick plates made of steel S235JR, the optimum cutting rates were restricted within the range of 600 mm/min to 1500 mm/min. The tests carried out made it possible to determine the influence of the active plasma gas (oxygen, nitrogen) both on changes in the chemical composition of the tested steel and on the quality of the cut surfaces obtained.

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Developments in Plasma Arc Cutting (PAC) of Steel Alloys: A Review

Abstract: The Plasma Arc Cutting (PAC) process was developed for difficult-to-machine materials in order to

Cited by 10 publications

References 22 publications

Forecasting the results of hybrid laser-plasma cutting of carbon steel

Forecasting the results of hybrid laser-plasma cutting of carbon steel

Optimizing plasma arc cutting processes using physics-based metaheuristic algorithms: a comparative analysis

The effect of air plasma cutting on the quality, structural transformations and changes in the chemical composition of structural steel

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