Deformation of Steel Ring Expanded Explosively in Water

Abstract

In order to examine the effect of the pressure on the formability of a steel plate in the explosive forming processes, a ring specimen taken from a long cylindrical cup with a very low critical impact tensile velocity was explosively expanded in water by the use of a detonator, and a tensile specimen prepared from the same cup was tested after exposed in water to the explosive pressure. The present experiments revealed that the formability of the steel plate in the explosive forming operations was favorably affected by the explosive pressure.