Smart Petrol Pump using RFID &amp; GSM Technology

Naresh, Jogi; Naresh, Bille; Yadav, Golla Ramakanth; Naidu, Gaduputi Janardhan; Raja, Adigarla Mahesh; Sindhwani, Manoj

doi:10.1201/9781003272328-14

Cited by 6 publications

(4 citation statements)

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“…Therefore, it can be concluded that although the linear energy obtained during the cutting process is sufficient, increasing the cutting speed has a greater influence on the proper removal of material from the cutting zone than the laser power. Similar findings regarding the unsuccessful laser-cutting process when increasing the cutting speed were observed in another research study [33]. In this study, the effect of varying lasercutting speeds on the machining of stainless-and carbon-steel plates with thicknesses ranging from 30 to 110 mm was investigated.…”

Section: Resultssupporting

confidence: 81%

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

Cepauskaite,

Bendikiene

2024

Metals

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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.

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Section: Resultssupporting

confidence: 81%

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

Cepauskaite,

Bendikiene

2024

Metals

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“…This is mainly because of the effect of the heat affected zone (HAZ) generated by the laser cutting process on the strength-ductility combination and the fact that its deformation mechanisms remain unsolved [8,[14][15][16], whereas the bolt holes produced by the drilling and punching machines do not have the HAZ. Specifically, most studies relative to the laser-cutting process of low-carbon steels have focused on the relationship between laser cutting parameters, cutting accuracy, and cutting section quality [14][15][16][17][18]. Almost no studies have clarified the strength-ductility evolution mechanism induced by HAZ near the laser cutting surface, although some researchers carried out tensile property tests [13,19].…”

Section: Introductionmentioning

confidence: 99%

Revealing the Enhancement Mechanism of Laser Cutting on the Strength–Ductility Combination in Low Carbon Steel

Chen,

Tu,

Wang

et al. 2024

Metals

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The strength–ductility mechanism of the low-carbon steels processed by laser cutting is investigated in this paper. A typical gradient-phased structure can be obtained near the laser cutting surface, which consists of a laser-remelted layer (LRL, with the microstructure of lath bainite + granular bainite) and heat-affected zone (HAZ). As the distance from the laser cutting surface increases, the content of lath martensite decreases in the HAZ, which is accompanied by a rise in the content of ferrite. Considering that the microstructures of the LRL and HAZ are completely different from the base metal (BM, ferrite + pearlite), a significant strain gradient can be inevitably generated by the remarkable microhardness differences in the gradient-phased structure. The hetero-deformation-induced strengthening and hardening will be produced, which is related to the pileups of the geometrically necessary dislocations (GNDs) that are generated to accommodate the strain gradient near interfaces. Plural phases of the HAZ can also contribute to the increment of the hetero-deformation-induced strengthening and hardening during deformation. Due to the gradient-phased structure, the low carbon steels under the process of laser cutting have a superior combination of strength and ductility as yield strength of ~487 MPa, tensile strength of ~655 MPa, and total elongation of ~32.7%.

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“…With the development of science and technology, laser cutting technology is becoming more and more mature [17]. Laser cutting technology is one of the most widely used non-contact material cutting methods [18,19] which has the advantages of a narrow groove, small machining affected zone, fast cutting speed, higher precision, and good controllability [20,21]. Zhao et al [22] used a laser to cut anisotropic monocrystalline silicon bilayer wafers and found that the anisotropy of monocrystalline silicon had a great impact on the quality of crack edge morphology and the form of silicon fracture after cutting.…”

Section: Introductionmentioning

confidence: 99%

Process Analysis and Topography Evaluation for Monocrystalline Silicon Laser Cutting-Off

Liu,

Yu,

et al. 2023

Micromachines

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Due to the characteristics of high brittleness and low fracture toughness of monocrystalline silicon, its high precision and high-quality cutting have great challenges. Aiming at the urgent need of wafer cutting with high efficiency, this paper investigates the influence law of different laser processes on the size of the groove and the machining affected zone of laser cutting. The experimental results show that when laser cutting monocrystalline silicon, in addition to generating a groove, there will also be a machining affected zone on both sides of the groove and the size of both will directly affect the cutting quality. After wiping the thermal products generated by cutting on the material surface, the machining affected zone and the recast layer in the cutting seam can basically be eliminated to generate a wider cutting seam and the surface after wiping is basically the same as that before cutting. Increasing the laser cutting times will increase the width of the material’s machining affected zone and the groove width after chip removal. When the cutting times are less than 80, increasing the cutting times will increase the groove width at the same time; but, after the cutting times exceed 80, the groove width abruptly decreases and then slowly increases. In addition, the lower the laser scanning speed, the larger the width of the material’s machining affected zone and the width of the groove after chip removal. The increase in laser frequency will increase the crack width and the crack width after chip removal but decrease the machining affected zone width. The laser pulse width has a certain effect on the cutting quality but it does not show regularity. When the pulse width is 0.3 ns the cutting quality is the best and when the pulse width is 0.15 ns the cutting quality is the worst.

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Smart Petrol Pump using RFID & GSM Technology

Cited by 6 publications

References 0 publications

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

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

Revealing the Enhancement Mechanism of Laser Cutting on the Strength–Ductility Combination in Low Carbon Steel

Process Analysis and Topography Evaluation for Monocrystalline Silicon Laser Cutting-Off

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