Determining the amount of explosives in metal forming

Abstract

Explosive forming is an unconventional metal forming technology first discovered in the late 19th century and had large development in the mid-20th century. Explosives can be used as an energy source with technologies such as deep drawing, welding, expansion, blanking, and piercing, etc. In order to perform the forming process correctly, it is necessary to precisely determine the proper amount of explosives. The paper presents a review of the analytical methods used to calculate the amount of explosives required for forming a hemisphere. Three cases were taken for research with different thicknesses (3,4 and 5 mm) and with a radius of 95 mm. A comparison of the results obtained by these methods was also done.