Stakes
Stakes are objects used for shaping metal over, on and into. Hammers or
mallets are used to form the metal over the shape of the stake. Stakes can
be made of various materials. A wooden stump can be considered a kind of
a stake. Usually in the West most stakes are steel.
Small stakes may be made as needed from pieces of scrap steel or drill
rod. The only part that really matters with a stake is the surface under
the hammer blow. Therefore anything that fulfills that function can be
a stake. This is really important as a concept. The only part that counts
is the shape and surface of the material directly under the hammer blow.
Chasing tools may do the job if fixed in a vise.
Railroad spikes make good stakes. They may usually be obtained free
by asking the local rail yard for some. Sometimes they are first heated
up and the head bent over at right angles to the shaft of the spike so
that with the shaft clamped in a vise it provides a 'head' that is similar
to the commercially available ones that are stuck into holders that are
held in the vise. Large bolts and trailer hitches make useful stakes when
reground slightly.
A pick axe can make a useful stake if much of the handle is sawn off
and the blades rounded somewhat.
Dee Fontans and I use several Vitalium® and similar hard brightly polished
metal replacement hip joints as stakes. Medical companies have salespeople
who have samples of these which they show around and which are superseded
and become available cheaply or free for use as stakes. Almost any piece
of interesting metal junk may make a good stake if finished.
One can place hammers into a vise as temporary stakes but must be careful
not to clamp them over the eye as they can be easily cracked and broken.
Clamp them above or below the eye.
Heavy gauge iron pipes may be welded onto a large spike, placed on a
stump and finished off well. The iron pipe can also be clamped in a wooden
pipe clamp.
Check around old body or sheet metal shops, high school shops and junk
yards for used stakes.
A tire iron with a hex-nut socket at the end makes a very interesting
extension arm for small stakes (heads). The tire iron can be clamped in
the vise at various angles easily. If a stake (modified bolt end or whatever)
has a suitable nut brazed to it then it can be inserted into the socket
of the tire iron and so functions like a much more expensive interchangeable
stake and head system.
Casting Specialties is recommended for their unfinished sets of stakes.
When holding a small piece of metal onto a stake to shape it Zaruba
takes a sheet of stretchy latex rubber dam material (cheapest when obtained
from physiotherapists or even aerobics instructors who use it to make
muscle building tools) and stretches it over the piece of metal. This
holds it against the stake and allows one to whale away on it without
fear of smashing ones fingers.
Stakes made from wood like maple are perfectly fine and in some places
all raising is done on them, the metal stakes being used for planishing.
There's a great saving on stakes that way, and a number of different ones
may be made very cheaply. This is a diagram of a relatively easy one to
make. There are various designs for them. Note that the broader the top
surface the larger a piece can be raised. Wooden stakes work very well.
Swages
Swages are a form of die for making wires of odd cross-section. They are
like having a single shaped hole in a draw plate but each half can be
moved closer together or apart as metal is drawn through it or hammered
by the swage to shape it. Shaped rods and wires with complex cross sections
can be made by swaging them.
Swages may be made from high-carbon steel and should be curved slightly
towards the bottom on each side and edge. They should be highly polished.
Metal strip may be hammered right into a single part swage as it is
moved steadily through it by hand to obtain a complex cross section.
There may be two parts to the swage and the metal moved through while
the top is hammered repeatedly upon the bottom. Such swages need registration
rods.
It is possible to use two swages which are registered together by being
connected with a large leaf spring so that one strikes the top swage with
a hammer and so shapes the metal being stuck between the two swages as
it is drawn through.
German companies produce four sided roller swages which allow one to
draw any combination of two flat sided wire or narrow sheet from 1x1mm
up to about 2cm x 2m, or 2cm x 1mm, whatever combination one wants. Each
roller can be set differently to allow numerous square and rectangular
cross sections to be drawn. The drawback seems to be fiddly resetting
time-but definitely a cool tool (always wanted one).
Pattern rollers (a kind of roller swage) can be added to many rolling
mills to produce complex cross sectioned wire. I've heard of one person
adapting a metal lathe to obtain a pattern rolling tool.
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