sysweld焊接热源模型.ppt

Heat Source Fitting Heat Source Fitting for a T-joint with for a T-joint with Deposit of Material Deposit of Material An example of application of the HSF tool for predefined type of weld joint geometry Mesh Mesh –– model description model description ? For creation of 2D mesh of the joint cross-section the predefined T-joint profile with deposit of material is used – SIL routine Tjoint _filler_ prf . cmd , parameter file Tjoint _filler_ prf .PAR ? The 3D model is straight, created by translational extrusion 2D mesh parameters 2D mesh parameters ? Parameters of 2D mesh: Width of bottom plate: 50 mm Width of upper plate: 20 mm Thickness of bottom plate: 5 mm Thickness of upper plate: 5 mm Thickness of weld: 3 mm Size of bottom right fine mesh: 1 mm Size of upper fine mesh: 1 mm Size of bottom left fine mesh: 1 mm Minimal element size: mm Maximal element size: 2 mm Fine element size: mm 2D mesh parameter window 2D mesh parameter window 3D mesh parameters 3D mesh parameters ? Parameters of 3D mesh: Total length of 3D model: 100 mm Length of section with fine elements: 35 mm Distance of heat source centre from the end of 3D model: 15 mm 3D mesh parameter window 3D mesh parameter window Material properties Material properties ? For all parts of the structure, material properties of steel S355J2G3 from standard SYSWELD material database are applied ? isosurface representing molten zone: 1450 oC? isosurface representing HA zone: 800 oC Parameter of the heat source Parameter of the heat source Curvilinear velocity of welding: v = 5 mm ·s -1 Temperature contours Temperature contours –– general view general view