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STEEL ...
the heart and soul of a knife is the steel. i pick
my steel with care. my current preferences are ATS-34
and D2. damascus is used a lot in
my shop too and i am always on the lookout for a good
pattern, well executed and with good contrast.
both
D2 and ATS-34 show superior edge holding ability and i
like the hardening and tempering properties. i use ATS-34 quite a bit,
especially for folders.
i prefer 5/32" to 13/64" stock for my
hunting knives because i hollow grind my knives and this range
of thicknesses is good for giving strength to the back and
shows off the visually pleasing hollow ground bevel. It also allows
me to grind my blades thinner without losing blade
strength.
when crafting a
folder, i use either 1/8" or 5/32" thickness, both precision
ground. i pay more for the precision grind but it insures that
the blade will line up properly and work smoothly when
complete.
THE PROCESS ...
the first thing after picking out the piece
of steel is to cover one side with layout
dye. this creates a coating which allows me to more
easily see the profile lines that i now scribe onto the steel.
this complete, its onto the metal-cutting
band saw where i cut to my profile lines as close as i can. from there,
my 2" by 72" bader grinder comes into play to bring the
edge right up to the grind lines.
i drill
the holes for the handle pins and the guard pins if i am
putting on a guard. this completes the first session
of my process.
the blade blank is now ready for grinding. i hollow grind my blades which
gives a real tough working blade when complete. i take my time so that when i
am done the blade is straight with matching grind lines on
each side. i limit my blade grinding session to only one
blade. an effective and visually pleasing grind requires mentally
putting my mind on the edge if the blade and imagining
what metal is being taken away as each grinding pass is taken.
carelessness in my concentration will lead to a blade that goes
in the trash.
i then
lightly grind the tang in preparation for heat treat. I'm a fan of
full tangs on my sheath knives since they are the strongest and
longest lasting way to construct a knife. some makers believe
in tapering the tang to perfect the balance. i prefer to gain the same result by
drilling a series of holes in the tang in a honeycomb pattern. it
also allows for greater surface area of coverage by the
epoxy to handle bond.
each knife is wrapped in
foil to minimize scaling during the
heat-treat process. i usually treat four to six knives at a time. it is a
12 hour process using my electonically programmed evenheat heat treating oven and
the power meter really spins. so i want to get as much
efficiency as i can both in time and power usage.
out of heat treat,
and after two tempering cycles to insure ideal martensite transformation, the blades are ready for final
grinding and polishing which rockwell tests at
59-61. this range gives the best balance between cutting perforance and edge holding ability.
care is needed during the final grinding process to keep the blade cool. this insures
that i don't lose my temper or burn the carbon from the
blade. my fingers are always on the blade and when i feel
too much heat i cool it in the water bucket next to my
grinder.
this
final grind is a fun part of the process
because it is when the blade comes alive. it begins to shine when i finally
get down to my 2400 grit
belt. the polishing wheel brings out the mirror finish that i love
to see, as do my customers. the more polished the blade, the easier
it is to keep clean. and thie is the end of the second phase.
the third phase is putting on the guard and
handle. i use step pins that screw into each other as well
as epoxy to fasten my handle slabs to the knife tang. this
process insures that the slabs are on for good. the pins provide
a mechanical joint and the epoxy joint helps hold
the slabs in place as well as keeping out moisture
and other contaminants from lodging between tang and
handle.
when the
epoxy is completely cured, which i let happen over 24 hours, the handle is ready for
final shaping and polishing. i use only the finest handle materials and
prefer natural materials (wood, horn, pearl, ivory, stag etc.... i
have a lot of favorite handle materials
and use them all.
when i create a knife as i have expalined
above, the final product has real soul and is something
we can both be proud of. i bond with
each knife that i make and there is a piece of me that will
live for a long time with each one that i send out.
finally, i make a sheath from 10-12 oz cowhide. i have always enjoyed
working with leather and this holds the most fun for me. my
sheaths are pouch type and my current design has evolved over the years. the sheath is heat impregnated
with a combination of waxes and oils (SheathCoatTM) and is hot molded
to the knife that will be its mate. SheathCoatTM is available in
the "SheathCoat treatment" area of my website if you are planning to make
a durable long lasting sheath. i am confident that the sheaths that
mate with my knives will match the lifespan of the knives they are
made for. i still have sheaths that I made over 30 years ago which are still
serving their purpose well.
that's the process in a nutshell.
the folder process is similar but with a lot of extra
steps and fine tool work. i am in the process of writing
a complete book on the knifemaking process for both
folders and straight knives. i will share all the secrets i have learned
in my past 38 years of making knives. it will be offered
on this site as an ..ebook.. so keep an eye out for its
debut. i hope that it will encourage you to give it a try.
after all, we both love the knife, one of the oldest
tools of man...
........... Pete
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