In this study, a new R-δf-type welding window on charge parameters is constructed by determining the boundary conditions of the explosive ratio. The R-δf-type welding window synthetically considers the explosive pro...In this study, a new R-δf-type welding window on charge parameters is constructed by determining the boundary conditions of the explosive ratio. The R-δf-type welding window synthetically considers the explosive properties and material properties, and can quickly determine the explosive charge at different welding materials with different thickness. In order to test the practicability and accuracy of the R-δf-type welding window, 410S stainless steel and Q345R low alloy steel plates were explosively welded using 15 mm charge determined by the new window. Microstructures of the bonded sections were examined and then shear tests were carried out on the bonded specimens. Microstructural examination showed the joint interface was transformed from micro wavy to small wavy appearance without microstructure defects. Shear tests results showed inter inacial shear strength was much higher than that of the national first grade standard. So the R-δf-type welding window has strong practicability and accuracy and is helpful to the practical production and application of explosive welding composite materials.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.51541112)
文摘In this study, a new R-δf-type welding window on charge parameters is constructed by determining the boundary conditions of the explosive ratio. The R-δf-type welding window synthetically considers the explosive properties and material properties, and can quickly determine the explosive charge at different welding materials with different thickness. In order to test the practicability and accuracy of the R-δf-type welding window, 410S stainless steel and Q345R low alloy steel plates were explosively welded using 15 mm charge determined by the new window. Microstructures of the bonded sections were examined and then shear tests were carried out on the bonded specimens. Microstructural examination showed the joint interface was transformed from micro wavy to small wavy appearance without microstructure defects. Shear tests results showed inter inacial shear strength was much higher than that of the national first grade standard. So the R-δf-type welding window has strong practicability and accuracy and is helpful to the practical production and application of explosive welding composite materials.
