
Having produced cutlery for over a decade, I have run the gambit of concerns from achieving just the right Rockwell hardness in my blades, to the "bells and whistles" that are suppose to make a customer go "OOOHHH."
I think back to the
days
when I joined the American Bladesmith Society, and all I could think
about
was someday producing a knife that might be good enough to be included
in one of the major knife publications, and thoroughly believing that I
could never make a blade that would pass the ABS Journeyman test.
Then one day it hit me.....If others could do it, then so could
I.
I read, talked to other makers, and read some more. As I became
more
educated on metallurgy, and began to experiment on my own, a couple of
things became very clear. One being, that each knifemaker seemed
to dwell on a specific element of their product, and each used that
same
element of their work as the main selling point. Some would tout
the rockwell hardness of their steel(s), others would boast of the
stainless
qualities, and yet others prided themselves on the fine hollow grinds
they
produced. Secondly, I noticed that while a certain knife might
have
the ability to hold a great edge, it was usually very difficult for the
average person to sharpen when it did become dull. Or, as I
wondered
to myself, would that same knife chip or break if used under extreme
circumstances?
These thoughts and experiences lead me to create a high expectation for
my knives, and after a couple of years, I came to refer to these
expectations
as........The Overall Package.
The Overall Package is
not a myth, or even a dream. It is a very achievable combination
of desirable characteristics that can provide the customer with a using
knife that will:
1. Hold an edge
2. Be easy to resharpen
3. Be extremely durable
and resilient
4. Be comfortable to use
5. Be pleasing to the
eye
This combination does
not come automatically, nor easily. One must consider all of the
aspects of the knife, as well as it's intended purpose, and as with
most
things, there are some trade offs that must be realized by both the
maker
and the customer.
Lets begin with steel
selection. Is the finished blade a using knife? An Art
Knife?
Will it see service in a corrosion prone environment? Each
question
should lead to another. The general parameters of use should be
helpful
in choosing the steel. Once the type of steel is chosen, the next
set of questions arises. Taking into account the given steel,
which
grind is most suited to the knife's intended task(s)? And what
type
of heat treatment, in conjunction with that particular grind, on the
chosen
steel, will render the desired characteristics in the finished blade?
Now let's take a look
at grinding. Through years of experimentation and testing, I have
come to the very pointed conclusion, that the best cutting blades are
those
with very small, or no edge bevels. This means grinding the blade
in such a manner, as to eliminate any unnecessary bulk or "meat" near
the
edge. Now we start to see how the other facets play into the
blade.
Will the type of steel, and the chosen heat treatment (hardness level),
allow one to grind a blade in this manner without the finished edge
chipping?
Will it be necessary to lower the hardness to achieve this?
(Trade
off # 1: A little less hardness, often will yield a more durable
edge/blade.)
What about blade
geometry?
This is not simply how the blade is ground from the spine to the edge,
but should also include the tapering of the tang on a "full tang"
knife,
as well as a distal taper (a blade that is thickest at the ricasso, and
tapers all the way to the point) built into the blade itself.
These
tapers will impart balance to the finished product, and will also
distribute
stress evenly, should the need arise. Very often you will hear
people
speak of "balance", and how one knife feels so well balanced, while
another
feels "klunky." If you pay close attention when at a knife show,
you will notice that the knives that "feel" good in your hand, will
generally
have either a distal tapered blade, or tapered tang, or both.
Finishing: The
majority
of this category speaks for itself. All scratches removed, all
aspects
balanced, and everything looking good. The most important part of
this area is to NEVER say "Thats good enough." I have handled
many
a knife that was only a couple of finishing hours away from being a
truly
outstanding piece. The problem? Attention to detail! Are
the
plunge cuts as even as possible? Is the same level of finish
evident
in those hard to get at areas, as on the larger, more easily accessible
areas of the knife? And finally, do the lines of the knife
"flow?"
Hold a knife at arms
length, and visually absorb the profile. Follow the outline with
your eyes. Is there anything that makes you change focus, or
abruptly
move your eyes? Does it look like everything is one object,
rather
than a conglomeration of parts? If you can answer "NO", "NO", and
"YES" then you can bet that the maker took his/her time, thought it
out,
and did it right!
There are many other
technical aspects that also contribute to "The Overall Package", and as
time allows, I will identify them in other articles. For now,
suffice
to say that there are many more things that go into a well made custom
knife than a specific steel, it's Rc hardness, or the type of
grind.
Think about it.
Ed Caffrey, ABS Mastersmith
"The Montana Bladesmith"
Copyright 2007