Study of explosive welding of A6061/SUS821L1 using interlayers with different thicknesses and the air shockwave between plates

Abstract

In this work, interlayers with different thickness were used to weld A6061 aluminum alloy and SUS 821L1 duplex stainless steel. The results indicated that the interlayer thickness had a significant effect on the welding. The influence of the air shock wave between the plates on the welding results was examined. The fluid-Solid coupling finite element method was used to simulate the movement of the interlayer under the action of the air shock wave. The smoothed particle hydrodynamics method was used to simulate the oblique impact process of the plates, and the unwelded samples were analyzed using the simulation results. In the analysis of weldability window, the influence of the interlayer on the upper and lower limits was examined.

Explosive Welding of Aluminum and Cast Iron for Potential Transportation and Structural Applications

“…Hanliang et al [ 50 ] observed similar results when welding A1060 with bulk metallic glass, with the A1060 side exhibiting less increase in hardness value. Similar observations were made by Chen et al [ 51 ] and Carvalho et al [ 52 ] In all cases, a significant change in microhardness was observed when shifting from ET 28 mm to ET 38 mm, while minor changes were observed between ET 38 mm to ET 47 mm.…”

“…Moreover, the shear strength value obtained under this condition closely resembled those of A1050‐H24/JIS G 5502 at ET‐28 mm. While it is widely known that an excessively thick melting layer can adversely affect welding strength, the experimental results by Chen et al [ 51 ] demonstrated that a specific thickness of the melting layer can be advantageous for enhancing welding strength. However, our observations further suggested that the generation of a substantial LMZ under higher energetic conditions did not significantly influence the shear strength of the welded clads.…”

Thermo-Structure Approach to Dissimilar Explosive Cladding with Interlayer

“…The nature of w collision angle, collision velocity, metals having a significant differen dictates the temperature generat consequently, the nature of the inter m, copper, and whereas a thin mployed as an ng between the arameters, viz., als [17]. When cess parameters l energy and, r clads, a near oth undulating esearchers [18][19][20]. The amplitude and wavelength of the interfacial waves depends on the kinetic energy spent at the interface which is converted into thermal energy, thus characterizing the deformation work (Eqn.6).…”

Quality Parameters of Explosively Welded Spring Steel and Carbon Steel

“…The development of new materials and production processes that use unconventional energy sources is the result of scientific and technical-technological progress of human society. The application of explosion welding to obtain bimetallic and multi-layer [5][6][7][8][9] compositions of materials is gaining more and more importance. Therefore, this method itself as well as all the phenomena that occur during it are increasingly attracting the attention of both scientists and its users.…”