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Numerical analysis of laser welding with consideration analytical methods of determining phase transformations and mechanical properties of welded joint

机译：考虑确定焊接接头的相变和力学性能的分析方法的激光焊接数值分析

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The numerical analysis of laser welding process with consideration analytical methods determining phase transformations and mechanical properties of welded joints are presents in this paper. The analytical CCT diagram and final structural composition of S355 steel are presented. The empirical relations presents in paper are determined by chemical compositions investigated steel and cooling rate between temperatures 800-500°C (t_(8/5)). Phase composition and mechanical properties each of structures of steel in weld and heat affected zone (HAZ) are determined on the basis of analytical methods. Laser welded flat is used in numerical simulations in ABAQUS. Mathematical modes of volumetric welding source are used in the calculations. Temperature fields, shape and size of melting zone for selected points in the cross-section of the joint are determined on the basis of thermal cycles obtained numerical.
机译：本文介绍了激光焊接过程的数值分析，其中考虑了确定焊接接头的相变和力学性能的分析方法。给出了S355钢的CCT分析图和最终结构成分。纸中存在的经验关系取决于所研究的化学成分以及温度在800-500°C（t_（8/5））之间的钢的冷却速率。根据分析方法，确定焊接和热影响区（HAZ）中钢结构的相组成和力学性能。激光焊接平面被用于ABAQUS的数值模拟中。计算中使用了体积焊接源的数学模式。根据数值获得的热循环确定接头横截面中选定点的温度场，熔化区的形状和大小。

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