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Numerical sensitivity analysis of single pulse laser welding with a C-shaped beam
2. A. Otto, H. Koch, K.-H. Leitz, and M. Schmidt, “ Numerical simulations—A versatile approach for better understanding dynamics in laser materials processing,” Phys. Procedia 12, 11–20 (2011).
3. N. Sina Shanmugam, G. Buvanashekaran, K. Sankaranarayanasamy, and K. Manonmani, “ Some studies on temperature profiles in AISI 304 stainless steel sheet during laser beam welding using FE simulation,” Int. J. Adv. Manuf. Technol. 43, 78–94 (2009).
6. A. De and T. DebRoy, “ Improving reliability of heat and fluid flow calculation during conduction mode laser spot welding by multivariable optimisation,” Sci. Technol. Weld. Joining 11, 143–153 (2006).
7. S. Bag, A. Trivedi, and A. De, “ Development of a finite element based heat transfer model for conduction mode laser spot welding process using an adaptive volumetric heat source,” Int. J. Therm. Sci. 48, 1923–1931 (2009).
9. A. Laskin and V. Laskin, “ Freeform beam shaping for high-power multimode lasers,” Proc. SPIE 8960, 89601P 1-12 (2014).
10. J. B. Hammond, E. G. Johnson, C. Koehler, J. Stack, and T. Suleski, “ Diffractive optics for laser welding and bonding,” Proc. SPIE 3633, 206–213 (1999).
11. P. Laakso, S. Ruotsalainen, T. Purtonen, H. Mikkinen, V. Kujanpää, and A. Salminen, “ Simultaneous sub second laser welding of polymers with diffractive optics,” in Proceedings of 29th International Conference on Applications of Lasers and Electro-Optics, 2010.
14. R. Gruhlke, K. Kanzler, L. Giammona, C. Langhorn, and W. Sullivan, “ Diffractive optics for industrial lasers: Effects of fabrication error,” Proc. SPIE 1751, 118–127 (1992).
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Even though Gaussian and top-hat beam profiles are suitable for most laser welding applications, for certain cases other beam distributions can be favored in terms of weld quality or performance. One promising method to generate a tailored beam shape is diffractive optical elements. A numerical model on the temperature field generated by specific beam shapes is therefore under development to iteratively identify desired beam shapes for specific applications. The present study is based on two thin steel sheets that are conduction welded in a lap joint mode by a C-shaped single laser pulse. The main aim is to ensure a specified weld width along the C-weld shape at the overlap interface between the two sheets in a robust manner. The sensitivity of main criteria like the interface weld width and phase changes at the workpiece top and bottom is studied and discussed in a systematic manner by applying a numerical heat transfer model for various parameters and conditions.
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