Apparatus for producing metal bands

Details Apparatus for producing metal bands Apparatus for producing metal bands

1977-07-07

1978-11-21

Keenan, Michael J.

Metal deforming

By pulling workpiece through closed periphery die

Movable die

72DIG20, 72289, B21C 102

Patent

active

041260317

ABSTRACT:
An apparatus has a die with a U-shaped slit for wire passage. The die is connected to an acoustic concentrator of ultrasonic oscillations. The central portion of the slit is parallel to the end face of the concentrator. The wall of the slit central portion that is nearer the concentrator is arranged to be within the zone of the antinode of a standing ultrasonic wave; the area of the wall is not greater than that of the concentrator end face. The length of each lateral portion of the slit is greater than the distance therebetween.

REFERENCES:
patent: 2279347 (1942-04-01), Simons
patent: 3209572 (1965-10-01), Boyd et al.
patent: 3434329 (1969-03-01), Goble

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