High-speed explosive hammer

Details High-speed explosive hammer High-speed explosive hammer

1978-03-28

1979-09-04

Lanham, C. W.

Metal deforming

With means to drive tool

Including magnet, solenoid or explosive

7245318, B21J 726

Patent

active

041663756

ABSTRACT:
The invention relates to metal forming equipment and may be most advantageously used for the manufacture of single-tailed blades preferably for gas turbine engines. The hammer according to the invention has a stationary bed incorporating a load bearing frame carrying a lower die and a hammer cylinder. The hollow piston rod of the hammer cylinder accommodates a hammer body with an upper die, and its upper chamber is an explosion chamber. The invention resides in that the hammer body is mounted in the inner space of the hollow piston for an independent axial movement relative thereto under the action of a hammer piston arranged thereabove in the same inner space. The hammer piston is caused to move by pressure of gases released upon a blow-up in the explosion chamber. The chamber communicates with the inner space of the piston rod through a central opening of the piston. This construction considerably enlarges the manufacturing capabilities of the hammer according to the invention.

REFERENCES:
patent: 3044452 (1962-07-01), McCrory
patent: 3205790 (1965-09-01), Bollar
patent: 3296853 (1967-01-01), Beche
patent: 3552181 (1971-01-01), Chan
patent: 3827278 (1974-08-01), Mershon

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