Abstract
Recently, the explosive metal forming has begun to drau considerable attention of the public.
The main reasons are the following :
1. Larger or more complicated shapes than ever can be formed easily with explosives.
2. Some new great-strength, high-temperature resistant metals can be formed only by ex plosive forming. in this report are included fundamental experiment about the under water explosive metal forming. That is, the relation between peak explosive pressure and weight of explosive, or distance from explosive, or depth from water level are ob tained by copper cylinder-type pressure gauge. Then, cylindrical cups of 50 mm dia, 20, 30, 40 mm depth, have been formed under several conditions and the formablity of explosive forming are estimated from these results.
