laser cutting of thick sheet metals residual stress analysis

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laser cutting of thick sheet metals residual stress analysis Laser cutting of thick sheet metals : Residual stress analysis. A. Arif, B. Yilbas, B. A. Aleem. Published 1 April 2009. Materials Science, Engineering. Optics and Laser Technology. . $6.00

0 · Laser cutting of thick sheet metals: Residual stress analysis
1 · Laser cutting of thick sheet metals : Residual stress analysis
2 · Laser cutting of thick
3 · Laser cutting of holes in thick sheet metals: Development of
4 · Laser Cutting of Rectangular Blanks in Thick Sheet Steel: Effect

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Laser cutting of tailored blanks from a thick mild steel sheet is considered. Temperature and stress field in the cutting sections are modeled using the finite element .The residual stress developed in the cutting section is determined using the X-ray diffraction (XRD) technique and is compared with the predictions. The structural and morphological .Laser cutting of tailored blanks from a thick mild steel sheet is considered. Temperature and stress ﬁeld in the cutting sections are modeled using the ﬁnite element method. Laser cutting of thick sheet metals : Residual stress analysis. A. Arif, B. Yilbas, B. A. Aleem. Published 1 April 2009. Materials Science, Engineering. Optics and Laser Technology. .

Laser cutting of hole in a mild steel thick sheet metal is investigated. Temperature and stress fields developed around the cutting section are simulated using the finite element . The influence of laser cutting speed on temperature and stress fields is examined while the residual stress developed in the cutting region is measured using the XRD .

The residual stress developed in the cutting section is determined using the X-ray diffraction (XRD) technique and is compared with the predictions. The structural and morphological .Laser cutting of thick sheet metals : Residual stress analysis Author ARIF, A. F. M 1; YILBAS, B. S 1; ABDUL ALEEM, B. J 1 [1] Mechanical Engineering Department, KFUPM, KFUPM Box .

Laser cutting of thick sheet metals: Residual stress analysis

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Abstract. Laser cutting of thick-section circular mild-steel blanks of 10 mm thickness is examined. Thermal and stress fields developed in the cutting zone are predicted using finite element . Consequently, in the present study, laser cutting of sharp edge and corner in a thick sheet metal is considered. Temperature and stress fields are predicted using the finite element method. The residual stress predicted from the simulations is compared with the data obtained from the X-ray diffraction (XRD) technique. Laser cutting of holes in a mild steel thick sheet is considered. The thermal and stress fields developed during the cutting process are predicted using the finite element method. An experiment is carried out to examine the residual stress generated around the cut edges after the completion of the cutting process. Laser cutting of rectangular blank in thick sheet steel is considered and temperature as well as stress fields in the cutting section are predicted using the finite element method.

There is little data available about residual stresses developed during laser cutting. Residual stress generation due to laser cutting has not been studied so much as after laser welding . Laser cutting of thick sheet metals: residual stress analysis. Optics and Laser Technology, 41 (2009), pp. 224-232. Google Scholar [9] Laser cutting of rectangular blank in thick sheet steel is considered and temperature as well as stress fields in the cutting section are predicted using the finite element method. The influence of cutting speed on temperature and stress levels is examined while the XRD technique is introduced to measure the residual stresses after the laser cutting process. The . Laser hole cutting into Ti-6Al-4V alloy is carried out. Temperature and stress fields during the cutting process are predicted using the finite element code. Temporal variation of surface temperature in the region close to the kerf edge is monitored by a thermocouple and compared with the predictions. The residual stress formed in the cutting region is obtained .Laser cutting of holes in thick sheet metals: Development of stress field . The residual stress developed in the cutting section is measured using the XRD technique and ﬁndings are compared with the predictions. Optical microscopy and SEM are carried out to examine the morphological changes in the cutting sections. . The model study for .

Laser cutting of hole in a mild steel thick sheet metal is investigated. Temperature and stress fields developed around the cutting section are simulated using the finite element method.

Yilbas [8] examined the oxygen-assisted laser cutting of 12 mm thick mild steel sheet using a CO 2 laser and reported that the laser power intensity and oxygen pressure had significant effects on .

When short flange bends (between 10-20mm) are made, especially on long parts (over 1.5m or so), we have this phenomenon, where the sheet metal gets warped and the bend looks like a "banana". I am adding a photo and a visual. We managed to find out that the reason behind this is residual stresses in the sheet steel parts, left after laser cutting. Laser cutting of thick sheet metals: Residual stress analysis. Optics & Laser Technology. 2009; 41(3): 224-232. Google Scholar. 3. Yilbas BS Arif AFM. Laser cutting of steel and thermal stress development. . Peirovi S Pourasghar M Nejad AF, et al. A study on the different finite element approaches for laser cutting of aluminum alloy sheet. But at the same time, the local heating of flame cutting will cause residual stress inside the steel plate. Residual stress is an important reason for deformation and cracking of components. The change of temperature field is the premise .Laser Cutting of Rectangular Blanks in Thick Sheet Steel: Effect of Cutting Speed on Thermal Stresses

Li, Lin Sobih, M Crouse, PL 2007, Striation-free Laser Cutting of Mild Steel Sheets, CIRP Annals - Manufacturing Technology, vol 56, No1, pp193â€“196. 14538 Parthiban et al./ Materials Today: Proceedings 5 (2018) 14531â€“14538 [3] Arif, AFM, Yilbas, BS & AbdulAleem, BJ 2009, Laser cutting of thick sheet metals: Residual stress . But at the same time, the local heating of flame cutting will cause residual stress inside the steel plate. Residual stress is an important reason for deformation and cracking of components. The change of temperature field is the premise . Laser cutting of sharp edge and thermal stress development in the cutting section is examined. The finite element method is used to predict temperature and stress fields while the X-ray diffraction (XRD) technique is used to measure the residual stress around the cut edges. A mild steel sheet with 5 mm thickness is used in the simulations and the experiment.

Laser cutting has started to be used as an effective method for cutting out blanks from rolled sheet metals because of its high flexibility for cutting lines and high productivity.

CO2 laser is used to cut 10 × 10 mm square blank in a 3 mm thick stainless steel-304 sheet. Optical microscope and SEM are used to analyse the parametric effect on surface quality at the cutting . Laser cutting of hole in a mild steel thick sheet metal is investigated. Temperature and stress fields developed around the cutting section are simulated using the finite element method.

The laser cutting of metallic substrates results in the development of thermal stresses around the cut edges. Depending on the cutting speed, laser power intensity, and material properties, stress . 4.2 Analysis of cutting residual stress simulation results. The thermal-mechanical direct coupling method is used for flame cutting simulation, and the data of flame cutting residual stress field can be obtained at the same time as the data of cutting temperature field. . Laser cutting of thick sheet metals: Residual stress analysis. Optics . Laser hole cutting in a sheet metal is modelled, and temperature as well as the stress fields developed around the hole circumference are examined. . Modelling of residual stresses during laser cutting of small-diameter holes. . Laser cutting of large-aspect-ratio rectangular blanks in thick sheet metal: Thermal stress analysis. Show .

4.2 Analysis of cutting residual stress simulation results. The thermal-mechanical direct coupling method is used for flame cutting simulation, and the data of flame cutting residual stress field can be obtained at the same time as the data of cutting temperature field. . Laser cutting of thick sheet metals: Residual stress analysis. Optics .

Thermal stress analysis of sheet metals during the laser forming process was carried out by Yilbas and Akhtar [19], who found that the self-annealing effect of the laser scanning tracks could .

Arif et al. [52] analyzed residual stress with finite element analysis in thick sheet metal laser cutting and found that temperature field and resultant von Mises stress significantly rise in the direction normal to the scanning speed. Initially laser power heats the cutting path and as the process continues the cutting path cools down .

DOI: 10.1016/J.OPTLASENG.2009.03.002 Corpus ID: 121913227; Laser cutting of holes in thick sheet metals: Development of stress field @article{Yilbas2009LaserCO, title={Laser cutting of holes in thick sheet metals: Development of stress field}, author={Bekir Sami Yilbas and Abul Fazal M. Arif and Bahaa Abdul Aleem}, journal={Optics and Lasers in Engineering}, .