Forging has replaced hand forging where the working
and shaping of metal particularly steel, requires a substantial
amount of power. Simple flat dies of inexpensive design are
used to facilitate the forging operation. Two Dies are used of
which one is attached to the movable ram, and the other is
mounted on the stationary anvil of the machine.
SMALL POWER HAMMER
Hammers are designed for light forging operations.
These machines are of several types, but most of them
are operated mechanically. A typical, small Power hammer is
operated by an adjustable crank. A connecting rod attached
to the crank applies motion to the Hammer head. A heavy spiral
spring is used to obtain an elastic blow, which removes danger
of breakage and also prevents undue shock to the machine.
Power Hammer is of compact construction and occupies
a small area. The motor is mounted on a separate stand,
free from all vibrations of the Hammer. Force and elasticity are
given to the blow of the Hammer, design of the operating
mechanism and providing rubber cushions which insure the
working parts and reducing their wear and breakage.
The positive operation of the hammer is obtained by connecting
its ram with the crank. The length of the stroke is adjusted by shifting
the position of crank pin in the slot in the balance wheel.
The adjustment makes it possible to obtain strokes of various length.
Full length strokes are needed for some of the shapes that may be
forged on the Small Power Hammers.
Hammers are used for Table Knife Blades, Drawing out the Prongs, Garden and other Forks.