Explosive Sheet Metal Forming

In general a metal sheet is placed on a die.

Explosive sheet metal forming.

Explosive forming a method of forming metals mainly sheet metals in which pressure is created by the force of the blast of a high explosive powder or gaseous mixture through a transmitting medium. This process can deliver a great deal of flexibility in the metal forming process. An explosive forming is one of the techniques to form a metal plate using high shock pressure from the explosion. Explosive forming is a metalworking technique in which an explosive charge is used instead of a punch or press.

Explosives can deliver a huge amount of power. Explosives are also used to compact or consolidate metal powders into near net shapes. We manufacture primasheet 1000 a petn based sheet explosive and primasheet 2000 an rdx based sheet explosive. The underwater shock wave travels downstream and then it hits the metal plate to be formed.

Primasheet flexible sheet explosive has been developed to meet your breaching and demolition needs. An explosive releases its energy instantly so that an extremely high pressure with short duration occurs at the instance of explosion. Double curved and mass. Explosive forming offers unique solutions because explosives can be applied in any shape i e.

Explosive forming is employed in aerospace and aircraft industries and has been successfully employed in the production of automotive related components. Typically the mold and work piece are submerged in water. Although most explosive detonations are destructive the power from an explosive charge can be used to manufacture parts. There are various approaches.

An explosive charge is detonated under water pushing the sheet in the die in about 2 milliseconds. On the other hand it is unavoidably an individual job production process producing one product at a time and with a long setup time. Primasheet 2000 is equally as powerful as a c 4 explosive but because of it s consistent performance and properties blast damage can be minimized by exact cutting of. Explosive forming or herf high energy rate forming can be utilised to form a wide variety of metals from aluminium to high strength alloys.

An explosive forming process commonly used for the production of large parts is called a standoff system. The die cavity is vacuumed and the assembly is placed in water. Explosive forming is an ideal process for producing low volumes of very large metal part with low tooling costs. The explosive metal forming process this technique uses the energy generated by an explosive detonation to form the metal work piece.

It can be used on materials for which a press setup would be prohibitively large or require an unreasonably high pressure and is generally much cheaper than building a large enough and sufficiently high pressure press.