The Steel is Heated Prior to the Forging Process in
a Charcoal Fire
After
hammering the steel out, it is cut in half and folded.
The
actual forging of a sword is a most important
process. This process, along with the quality
of the steel, determines the quality and function
of the blade. There has been some confusion
and misconceptions on how our swords are forged.
The pictures of actual forging on this page along
with an explanation of each process should clearly
demonstrate why our swords are of the highest
quality. We get the best that the forge of Chen
Chiao Po can make. These swords are exclusive
to Bugei Trading Company and are not available
to other companies.
Each
sword is individually hand forged, individually
heat treated, individually polished and individually
mounted. The result of this, besides the high
quality, is that no two swords are the same. Each
one has individual characteristics that differentiate
it from others of our swords even of the same
style. It takes time to make blades of this quality.
This is why our blades cost more and are more
difficult to acquire. It is best to order or reserve
your blade as soon as possible as we do not always
have full availability in stock.
The
folded steel is then hammer welded together, as the
forging process continues.
The
smith then continues to shape the blade, first with
a power hammer and then with a hand held hammer.
The
quality and performance of our blades is of paramount
importance to us and we will not compromise this
quality and performance just to sell more swords.
The finished sword, shown at bottom left, has
an edge hardness of 61 on the rockwell C hardness
scale. The hardness transition goes to 45 rockwell
just above the hamon to 36 rockwell at the mune.
This insures good edge holding with strength and
ductility in the body of the sword. The polishing
process then shapes and sharpens the blade and
reveals the different crystalline structure that
is evident in the sword.
After
forging, the blade is shaped by hand, and then coated
with clay, prior to the hardening process.
After
the claying of the blade, it is heated to critical
(about 1450 degrees) and then quenched in water.
This process creates the martensite edge and pearlite
body of the sword.
The
blade is then final shaped and polished. This sharpens
the blade and reveals the hamon that is created
by the hardening process.