New Welding Option Solves Marring Problems

Surface marring during welding is said to be eliminated by a new film-indexing system from Dukane Corp., St.

Surface marring during welding is said to be eliminated by a new film-indexing system from Dukane Corp., St. Charles, Ill. The optional system places a thin piece of PE film between the horn and the part to be ultrasonically welded. The film compensates for any mismatch between the horn and the part and absorbs the energy that would otherwise cause surface marring.


After each cycle, the film is automatically advanced a preset amount set by a dial on the film-feed controller. The device handles film rolls up to 10-in. wide. Two bolts secure the film feeder assembly to the column, and an input cable on the control unit plugs into the top-of-stroke connector on the press. The film index system is targeted for precision or aesthetic parts in markets such as cosmetics and medical.