Optimizing the pulse wave mode low power fibre laser welding parameters of 22Mnb5 boron steel using response surface methodology

Yaakob, K. I.; Ishak, M.; Quazi, M. M.; Salleh, M. N. M.

doi:10.1016/j.measurement.2018.10.035

Cited by 41 publications

(18 citation statements)

References 32 publications

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“…In this paper, the outside diameter of the substrate was represented by an outside radius of the cylindrical substrate (RC), hereinafter referred to as the outside radius. Table 2 shows the experimental design matrix consisting of selected factors and their five individual levels [14][15][16]. Before conducting the cladding process, the substrate surface was cleaned with absolute ethanol.…”

Section: Methodsmentioning

confidence: 99%

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Lian

Zhang

et al. 2019

Metals

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Laser cladding on curved surfaces is essential in industrial applications for restoration and remanufacturing of high-value parts. This study investigated the influence of different factors on clad width, clad height, and dilution rate in curved surface laser cladding with curved path. Mathematical models were developed using central composite designs to predict these geometric characteristics by controlling laser power, scanning speed, gas flow, and altering the outside radius of the cylindrical substrate. Analysis of variance and response surface methodology indicated that clad width increased with increasing laser power and reducing scanning speed. Clad height positively correlated to laser power and negatively correlated to the outside radius of the cylindrical substrate. Increasing the laser power while decreasing the scanning speed led to an increase in dilution rate. Afterwards, the geometric characteristics of the clad were improved by optimizing these factors with the target to maximize clad width and height as well as to minimize dilution rate. The difference between model predictions and experimental validations for clad width, clad height, and dilution rate were 3.485%, 3.863%, and 6.566%, respectively. The predicted accuracy was verified with these models, and they were able to provide theoretical guidance to predict and control the geometric characteristics of curved surface laser cladding with a curved path.

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Section: Methodsmentioning

confidence: 99%

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Lian

Zhang

et al. 2019

Metals

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“…The high heat input applied on the FZ produced evaporation of Mn from 17 to 13%, enhancing the tensile load values and reaching 94% of strength efficiency (Table 1). With ultra-high strength steel 22MnB5, the technique transformed the original perlitic-ferritic microstructure into martensite in the FZ and mixture of ferrite, pearlite, and bainite in the HAZ [19].…”

Section: Dual Phase (Dp)mentioning

confidence: 99%

“…Therefore, the series of pulsed fusion zones overlapped generates the weld seam [15][16][17][18]. Even with the high peak power of each pulse, the intermittent configuration conducts a low average power [11,19,20]. Moreover, the behaviour of lower heat input and sharply high energy focused provokes minor disturbances in the materials, developing welding seams with condensed melting and affected areas [9,21].…”

Section: Introduction 1descriptionmentioning

confidence: 99%

“…Moreover, the behaviour of lower heat input and sharply high energy focused provokes minor disturbances in the materials, developing welding seams with condensed melting and affected areas [9,21]. Another important aspect is the penetration efficiency, which is higher in pulse than continuous mode under similar conditions [19,22]. The concentrated heat input and the quality issues aforementioned have given special attention to the use of this pulsed welding for joining thin materials [15][16][17].…”

Section: Introduction 1descriptionmentioning

confidence: 99%

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Pulsed Laser Welding Applied to Metallic Materials—A Material Approach

Chludzinski

Santos

Churiaque

et al. 2021

Metals

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Joining metallic alloys can be an intricate task, being necessary to take into account the material characteristics and the application in order to select the appropriate welding process. Among the variety of welding methods, pulsed laser technology is being successfully used in the industrial sector due to its beneficial aspects, for which most of them are related to the energy involved. Since the laser beam is focused in a concentrated area, a narrow and precise weld bead is created, with a reduced heat affected zone. This characteristic stands out for thinner material applications. As a non-contact process, the technique delivers flexibility and precision with high joining quality. In this sense, the present review addresses the most representative investigations developed in this welding process. A summary of these technological achievements in metallic metals, including steel, titanium, aluminium, and superalloys, is reported. Special attention is paid to the microstructural formation in the weld zone. Particular emphasis is given to the mechanical behaviour of the joints reported in terms of microhardness and strength performance. The main purpose of this work was to provide an overview of the results obtained with pulsed laser welding technology in diverse materials, including similar and dissimilar joints. In addition, outlook and remarks are addressed regarding the process characteristics and the state of knowledge.

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“…In our study, Taguchi design which allows using Response Surfaces Modelling (RSM) is opted and it is considered as a statistical method for modelling of problems in which different variables affect the desired response. It allows determining an appropriate approximation function representing the relationship between the response and independent variables [19,[39][40][41].…”

Section: Optimization Of the Grading Rings Parameters Based On Bat Almentioning

confidence: 99%

Grading ring parameters optimization for 220 kV metal‐oxide arrester using 3D‐FEM method and bat algorithm

Alti

Bayadi

Belhouchet

2020

IET Science Measure & Tech

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Aging of metal oxide surge arresters is mainly affected by the high electric stress near the high voltage electrode. It has been observed that the distribution of voltage and electric field along an arrester is non‐uniform. In this paper, the effect of grading ring geometrical parameters is investigated in order to achieve a more uniform electric field and voltage distribution. A 3D finite element method was employed based on COMSOL MULTIPHYSICS software to calculate these latter. The optimal design of grading ring is achieved by minimizing the electric field along the active column of varistors using a reduced number of simulations based on the Taguchi design and a bat algorithm. Initially, simulation results for a single grading ring were analysed. By using an optimal design of the single ring, the electric field is reduced by 42% in the top of the 220 kV metal oxide surge arrester and the voltage distribution can be improved. It was proposed to install an additional ring at the top of the metal oxide surge arrester. Simulation results shows that using of an optimal design of grading rings, the distribution of voltage and electric field along the surge arrester can be made as uniform as possible.

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Optimizing the pulse wave mode low power fibre laser welding parameters of 22Mnb5 boron steel using response surface methodology

Cited by 41 publications

References 32 publications

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Investigation of Geometric Characteristics in Curved Surface Laser Cladding with Curve Path

Pulsed Laser Welding Applied to Metallic Materials—A Material Approach

Grading ring parameters optimization for 220 kV metal‐oxide arrester using 3D‐FEM method and bat algorithm

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