Optimization of plasma cutting parameters on HAZ and bevel angle for low carbon steel using response surface methodology

Burrs are bottleneck of precision machining and automation production. Burrs are formed in every edges and faces, during the turning process, which affects the quality level of surface roughness. In this paper the experimental study of EN3 low carbon steel were carried out to minimize the surface roughness using response surface methodology and genetic algorithm. Tungsten Carbide was used as a cutting tool for this turning operation. Machined samples are examined under Scanning Electron Microscope (SEM) for burr formation. A wide variety of analysis between cutting parameters have been shown graphically. The minimization of burr was achieved and hence better surface quality was obtained by optimizing the cutting parameters like cutting speed, feed, and depth of cut, with the aid of Genetic Algorithm (GA) & Response Surface Methodology (RSM) Techniques.

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Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology

Metals ◽

10.3390/met6090205 ◽

2016 ◽

Vol 6 (9) ◽

pp. 205 ◽

Cited By ~ 12

Author(s):

Ruben Lostado Lorza ◽

Ruben Escribano García ◽

María Martínez Calvo ◽

Rodolfo Múgica Vidal

Keyword(s):

Response Surface Methodology ◽

Carbon Steel ◽

Response Surface ◽

Welded Joints ◽

Low Carbon Steel ◽

Multiple Response ◽

Low Carbon ◽

Multiple Response Surface Methodology

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Determining the processing modes of the low carbon steel by high-precision plasma cutting based on dimensionless complexes

MATEC Web of Conferences ◽

10.1051/matecconf/201929701007 ◽

2019 ◽

Vol 297 ◽

pp. 01007

Author(s):

Aleksandr Loktionov ◽

Nadezhda Gaar ◽

and Аndrey Rakhimyanov

Keyword(s):

Carbon Steel ◽

High Precision ◽

Sheet Material ◽

Cutting Speed ◽

Low Carbon Steel ◽

Plasma Cutting ◽

Low Carbon ◽

Processed Material ◽

Processing Modes ◽

Steel St3

The results of the investigations on determining the processing modes during high-precision plasma cutting of low carbon steel based on the values of Peclet number and dimensionless power which provide the minimal value of deviation of the cut sides from perpendicularity are presented in the paper. The conditions of obtaining the cut of high quality from the viewpoint of minimizing the cut side deviation from perpendicularity are determined by cutting low carbon steel. The dependences of the cutting speed and the cut width on the processed material thickness, intended to determine the processing modes and adjustment of the linear dimensions are established. The investigations were made on the device of the thermal cutting “Termit PPl” based on the installation of the high-precision plasma cutting HiFocus 130i of Kjellberg firm by using the HiFocusplus technology. Low carbon construction steel St3 was chosen as an investigated material. The thickness of the sheet material constituted 4 mm, 6 mm, 10 mm, 16 mm and 20 mm.

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Technological possibilities of high-precision plasma cutting in processing materials of different class

MATEC Web of Conferences ◽

10.1051/matecconf/201822401011 ◽

2018 ◽

Vol 224 ◽

pp. 01011 ◽

Cited By ~ 1

Author(s):

Andrey Rakhimyanov ◽

Alexander Loktionov ◽

Nadezhda Gaar

Keyword(s):

Carbon Steel ◽

High Precision ◽

Low Carbon Steel ◽

Production Costs ◽

Plasma Cutting ◽

Low Carbon ◽

Technological Production ◽

St3 Steel ◽

Steel St3

Improving the technologies and equipment at a stage of the blank production in mechanical engineering greatly determines the reduction in the technological production costs. The use of modern technological complexes on cutting sheet materials provides a solution to tasks for increasing the accuracy of forming. Nowadays high-precision plasma cutting is developing. It can be considered as an alternative to the laser cutting in achieving high characteristics of the cut accuracy and quality. The paper under consideration presents the results of optimizing the processing speed for the existing schemes of high-precision plasma cutting in the range of the cut thickness from 1 mm to 30 mm for carbon steel, alloy steel and aluminum steel. The efficiency of using the technological scheme HiFocusplus for cutting such bimetallic compositions as “steel St3 + steel 12H18N10T”, “steel St3 + aluminum A5M”, “steel St3 + copper M1” is presented. It is determined that the best characteristics of the accuracy and quality of the cut are achieved in cutting the composition “steel ST3 + steel 12H18N10T” from the side of low-carbon steel. Cutting from the side of aluminum and copper respectively is optimal for such compositions as “steel St3 + aluminum A5M” and “steel St3 + copper M1”.

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