ELECTRICALLY DRIVEN RAPIDLY VAPORIZING FOILS WIRES AND STRIPS USED FOR COLLISION WELDING AND SHEET METAL FORMING

摘要

The shaping method of the sheet metal piece is performed by placing a consumable body made of metal close to the sheet metal piece. The consumable body vaporizes rapidly, whereby the gas pressure generated is directed to the sheet metal piece. This is due to the acceleration of the sheet metal pieces, which generally impinge inside the stationary body at speeds above 200 m / s. Depending on the type of stationary body, the sheet metal piece is deformed into a pre-determined shape or welded onto the stationary body. Vaporization is accomplished by passing high current electricity through the consumable body. The effect of vaporized metal can be extended by additional components of the consumable body.