Analysis of the Surface Stereometry of Alloyed Austenitic Steel after Fibre Laser Cutting using Confocal Microscopy

Krajewski, Sławomir; Grochała, Daniel; Tomków, Jacek; Grzejda, Rafał

doi:10.3390/coatings13010015

Cited by 4 publications

(3 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although carbon steel is the most widely used in the petrochemical industry, other base materials must be addressed. For example, stainless steel [51] can be better resistant to corrosion and high pressure, and relatively require error-free. Otherwise, the consequences will be rather severe.…”

Section: Discussionmentioning

confidence: 99%

Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel Used in Multi-bolted Connections by the Method of Phased Array Corrosion Mapping

Tai,

Grzejda,

Sultan

et al. 2023

Preprint

View full text Add to dashboard Cite

Petrochemical plants use on-stream inspection more often to detect and monitor the corrosion on the equipment and piping system. Compared to ultrasonic thickness gauging and pulse-echo A-scan, phased array corrosion mapping has better coverability and can scan a large area to detect general and localized corrosion. This paper's objective is to obtain documentary evidence on the accuracy of corrosion detection from 30°C to 250°C on A36 low-carbon steel by carrying out simulation experiments every 10°C steps. A minimum of three sets of phased array corrosion mapping data in each temperature were collected to study and evaluate the detectability. The data evidence could enhance the confidence level of the plant's end users to use the phased array mapping in the future during an inspection. The experiments were found to be insufficiently thorough despite addressing the initial concerns, leaving more area for discussion in further studies, such as expanding the investigation to thicker carbon steel, stainless steel, and wedge materials.

show abstract

Section: Discussionmentioning

confidence: 99%

Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel Used in Multi-bolted Connections by the Method of Phased Array Corrosion Mapping

Tai,

Grzejda,

Sultan

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Li et al [20] found that laser cutting also had an effect on the magnetic properties of the edge, which was manifested as a decrease in the relative magnetic permeability of the overall sample. Krajewski et al [21] observed the cut edge after laser cutting with confocal microscopy and confirmed that the laser cutting speed had a significant impact on the cut-edge quality. Chang et al [22] analyzed the effects of mechanical shearing, laser cutting, and WEDM on the straight-edge cutting performance of medium-Mn steel.…”

Section: Introductionmentioning

confidence: 90%

Influence of Cutting Process on the Flanging Formability of the Cut Edge for DP980 Steel

Chang

Zhang

Han

et al. 2023

Metals

View full text Add to dashboard Cite

Flanging is a key process in the forming of automobile parts and is influenced by the cutting process before it. In this paper, a set of self-designed tools is adopted. The flanging height and flanging radius are specified as the indexes to investigate the influence of the cutting process on the flanging formability of DP980 steel. Microstructure, microhardness, and tensile properties are tested to evaluate the formability of cut edges. The results show that the flanging formability is positively correlated with an increase in flanging height and a decrease in flanging radius. The flanging formability of six cut edges can be ranked as: LC-L > LC-H > WEDM-HS > WEDM-LS > CNC milling > WJC. In the LC process, acicular martensite is formed and the microhardness of the cut edge significantly increases, with a heat-affected zone of about 150 μm. More and larger microvoids are found on the edge of WEDM-LS than WEDM-HS, which reduces the formability to a certain extent. Plastic deformation of the edges is the reason for the decrease in the formability of CNC milling. For WJC, the formation of irregular edge damage and the generation of burrs are the main reasons for the unstable performance. This research is helpful in guiding the selection of the cutting process, and it may contribute to a high part formability for DP980 steel.

show abstract

“…Moreover, the quality of the cutting edges is also crucial during the final technological operations, such as powder-coating or galvanizing. The adhesion of the coating is directly dependent on the quality of the cutting edges, as evidenced by research studies [11,12]. Solving such laser-cutting quality problems is particularly important because the insufficient quality of manufactured parts can affect their durability and reliability [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fiber-Laser Parameters on Cutting Accuracy of Thin and Thick S355JR Structural Steel Plates

Cepauskaite,

Bendikiene

2024

Metals

View full text Add to dashboard Cite

Fiber lasers, the latest laser-cutting technology, are notable for their high process efficiency, cutting precision, and high cutting quality for thin materials. However, the quality of the cut significantly decreases when machining thicker materials. For now, this is a challenge for the metalworking industry. This study investigated the effects of laser power, cutting speed, and auxiliary gas pressure on the fiber-laser cutting quality of 4 and 6 mm thick S355JR steel plates. To evaluate the influence of cutting parameters on cutting quality, surface roughness, dimensional accuracy and cut taper were measured. A microscopic analysis of the laser cuts was performed, revealing the heat-affected zone, transition zone and unaffected base-material zone. Research results show that laser cutting is a complex process, and the correct choice of cutting parameters greatly influences the cutting performance and final quality. An artificial neural network was created and trained using the results from measuring the quality characteristics to achieve optimum cutting quality. The accuracy of the optimization model was assessed by control samples, which were cut using calculated optimum parameters. The actual values of the quality characteristics only slightly differ from the predicted values, showing that the optimization model is suitable for selecting cutting parameters.

show abstract

Analysis of the Surface Stereometry of Alloyed Austenitic Steel after Fibre Laser Cutting using Confocal Microscopy

Cited by 4 publications

References 65 publications

Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel Used in Multi-bolted Connections by the Method of Phased Array Corrosion Mapping

Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel Used in Multi-bolted Connections by the Method of Phased Array Corrosion Mapping

Influence of Cutting Process on the Flanging Formability of the Cut Edge for DP980 Steel

Effect of Fiber-Laser Parameters on Cutting Accuracy of Thin and Thick S355JR Structural Steel Plates

Contact Info

Product

Resources

About