How hammerforged barrels and riflings are made

so we are at the Salafi factory queues

with my friend Manuel estaba chief CEO

of the company and he's going to show us

something very interesting how the

hammer fourth barrel is made this is

something that we have never seen before

I think so please come follow me

that we see how this rifle is done

the raw material arrives in the factory

has long circular profile iron

the factory stores huge quantities

sometimes one two years of stock to

secure continuous production the raw

material is already hardened steel as it

is not possible to harden the metal

after the hammer forging process as if

it was done so the barrels would Bend

the process

cutting the solid bars into desired

length however this length is not the

same as the length of the future morrow

the completed barrier will be longer

than the pieces cut here the next step

of production is drilling the hole in

the solid bars the factory uses a

special drill for this purpose

the tip is carbide and one section is

missing from the tool this section

allows the oil and the spill to flow out

from the hole during the drilling


the company has several these drilling

machines that are capable of preparing

six barrels at the same time

the size of the hole is always bigger

than the groove to groove diameter of

the future bore these are the Reimers of

the next step this process rims the

holes to the exact desired diameter this

helps in removing the small inadequacies

of the drilling process and it is

preparing the hole for the honing and

polishing the reaming is also made on

machines designed for four or more

burials in this case they are just

preparing the bar for hammering

the next station is a CNC control

turning machine that prepares the future

by a breech for the hammer forging

machine then the barrel is hole in the

middle bright on the outside and the

inside as well this is a very important

step as the very fine surface in the

grooves and on the lens is a key factor

in accuracy


you can have an idea of how many caliber

different caliber we manufacture

and also here

the manor itself is the very heart of

the forging machine this is the heart

steel core that hosts negative image of

the future rifling this is the form that

the barrel is hammered on the press SAT

of the mandrel is one key factor of

making an accurate bore each mandrels

are manufactured individually for the

specific caliber specific group number

rifling twist and rifling that the sub

at the factory has been using cold

forging technology for many years they

have state-of-the-art robotics for this

purpose but it is easier to view the

process first on their old machines the

barrel is pressing against the mandrel

and deform the inside surface in order

to became exactly like the mandrel is

on the Mandal you find the rifling that

you want to impress in the end of war

legacy the hammering machine has four

giant hammers that compress the boar

with millions of hits during the process

these hammers are replaceable to make

exactly the desired outer diameter the

old machine can only make barrels with

the parallel walls but the new ones are

capable of unique forms as well

on the manual manual machine you feel

better the process seems simple the bore

is placed into the Machine and the

manner is pushed inside the drilled

reamed honed hole

during the hammering the barrel rotates

so the outer diameter will be even and

the stress put into the metal will be

divided equally to every spot an

advantage of the hammer forged barrel is

that the stress is pointing in the

direction of the axis of the bore and

this increases the durability of the

compressed metal the machine is only

working on a few centimeter section of

the bore

when the barrel is ready it will be

significantly longer than the starting

piece at this stage all bottles are

checked with coves and endoscopes to see

if there are any problems in the surface

an advantage of this method is that the

barrel becomes very strong during the

process and accuracy of the ready piece

is very good

Sabathia also has a CNC controlled

robotics aided hammer forging machines

in the factory what you see here now is

the top class of this type of rifling

method the key advantages of this

process are the accuracy and the

productivity the process starts with

cleaning the surface of the metro

if any spill is present on the surface

it will be impressed into the metal so

it is essential to clean it completely

now the robot handles the barrel blank

and places it into the lubricator

fitting inside


and this is a start of the hammering

process the CSS controlled machine is

capable forming any outer surface

according to the

and this is also people who are forging

the Chamber similar fancy

now the rotating barrel is pushed

through the hammers these are nearly the

same principles like the ones you saw

before at the older machine

and we're warm bottom is ready the next

is prepared for the process again

you get clearly see now how the outer

surface and length of the barrel change

during the process



the burro is of course not ready at this

stage to be built in a rifle it will

need some more time on CNC control

turning machines and after turning it

will be straightened several times

before screwing it into a frame the

dimensions of the lens and the groups

are quickly checked with go/no-go goals

with one hundredth of a millimeter


you see they go

no go

wicked lies between the

this is the Delaney


not everything is done on CNC machines

in fact making a fine firearm needs a

good amount of skilled handwork even

today and this is something that adds to

the value of the guy Sebata is a nearly

100 years old company with centuries of

gun making traditions with enormous

knowledge in firearms industry

there are continues arguments which

rifling method is the best brought

rifling hammer forged rifling baton

rifling or the electrochemical methods

well I'm not the one to decide but one

thing for sure everything depends on the

perception of quality of the maker but

what you saw here today at the Sebata

Factory is really the state of the art

technology of today's firearms making