Abstract
An innovative explosive welding method for the fabrication of multiple plates (EWMP) was proposed to further improve the energy efficiency of explosive welding explosive charges and reduce the impact on the surrounding environment. In this method, six metal plates were placed in parallel and three composite plates were obtained through one explosion in this paper. The microstructure of the joint was analyzed by optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron backscattering diffraction (EBSD). Compared to traditional explosive welding (TEW), the EWMP dramatically reduced the noise and vibration and increased the energy efficiency of explosives. The results showed the vibration data of EWMP were reduced by 16.7, 16.4, 2.8, and 1.5%, respectively, and at places of 3, 4, 5, and 6 m away from the explosion center, and explosive consumption of EWMP was reduced by at least half, compared to the traditional method when obtaining the same amount of welded plates. Through numerical simulation, the collision speeds of the composite plate are 610, 516, and 471 m/s, respectively, and the waveform of the composite plate is basically in coincidence with the result of the experiment.
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