Influence of the Parameter of Explosive Welding Caused by the Slope of Fly Plate at Static Load

Explosive welding is a solid state fusion welding process in which the joining of two metals is accomplished by the application of the pressure released by the detonation of an explosive layer. It is widely used to manufacture material sandwich components. But when explosive was set on a thin fly plate, the deflection would take place because of the weight of explosive and the fly plate itself. In this paper, based on the analysis of the deflection of the big and thin plate which is supported by smooth cylindrical pin at four boundaries, the slope of the fly plate which endured uniform pressure of weight was developed. Combined with the explosive welding subsonic speed limit and fluid limit, the minimal thickness was calculated to make sure explosive welding can be successful. At last, the formula of the minimal thickness was gained in the conditions that the material, length, width of fly plate were all confirmed.