Posted on Dec 16, 2006 - 11:55pm by John P. in Art, Bladesmithing, Tutorials, Videos
Daniel Gentile, a bladesmith in Switzerland, recently posted a video online demonstrating many of the steps involved in the production of Damascus – or pattern-welded steel.
Those of you who know me are aware that I am also a Bladesmith and I studied under four separate American Bladesmith Society Master Bladesmiths, Joe Flournoy, Mike Williams, James Cook and Steve Dunn.
Among my courses of study, Damascus production was the toughest. There are only a few hundred people on the planet that can make this stuff, and once you make a billet of it you still need to be able to turn it into an actual finished blade and then a completed knife.
For those of you that are not completely familiar with what we’re talking about, Damascene (or Damascus) steel is an advanced form of blacksmithing, developed over 1,500 years ago, recognizable by a distinctive pattern on the metal surface. The look comes from stratified layers of steel with varying compositions that have been etched to reveal distinctive swirl patterns of light-colored regions on nearly black backgrounds. Damascene, which has always been rare, went through three golden ages before it became a lost art.
In the early Iron ages military armorers discovered that certain materials could be mixed with iron to make it harder or tougher. Hard metals would hold an edge easily, but shatter on impact. Tough metals would flex to avoid breakage, but would not retain a sharp cutting edge. It was discovered that by blending hard and soft metals together a blade could be created which had superior cutting and piercing capabilities, yet could easily flex during battle. For this reason damascene patterned blades became revered by kings and feared by enemies.
Because of the inherent strength of pattern welded Damascus steel, and the fact that nations rose and fell based upon the technology of their weapons, the method of manufacture was a secret closely guarded by Bladesmiths. Over time; however, the smiths who knew about the technique died out without passing it on to their apprentices.
Today, it is estimated that only a few hundred people retain the knowledge to produce Damascus steel; for this reason most people will never hear of, much less see a work of art containing forged Damascene.
Here now, is Daniel’s excellent video. Keep in mind that the narrator is Swiss so there is a bit of an accent. If you have questions about this process feel free to drop a comment and I’ll answer them.
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hey,
i have a question, and im fairly new in this field so its probably pretty basic. what is the usual method, in terms of grinding, for taking the finished billet and making the knife come out of it. so far we’ve only been using an angle grinder, with either normal grinding discs or the sand papery kind, and that sort of works but its hard to keep the same angle and it also takes away a lot of material frighteningly fast.
I’ve seen them use a type on which you grind material off on a running band of sand paper, but the difference i suppose is that you are holding the knife and not the tool…
aequitas
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ATS3‚S steel is made by hitachi metals.
Hitachi Metals is also only a maker that makes raw steel of samurai sword.However Hitachi is a high-tech steel maker,the method of making steel is ancient way in the only case of making raw steel of sword.
The movie was seen after a long time recentry.
The latter overwhelms this movie “Last Samurai” with the samurai at the beginning of the Meiji era by the fight with military forces of the West type. The modernization of our country and the spirit of Japan are content something being thought.
This time was miraculously the period of the big revolution that the age of of the traditional steel manufacture method “tatara” that supplied the material of arms “Japan Steel” changed places into the modern steel manufacture method with high manufacturing efficiency.
The history of the iron manufacturing company in Japan is first Unpaku steel company in 1899. (Present Hitachi Metals,Ltd Yasugi Works),and second government-owned Yahata steel in 1901(Present Nippon Steel)established.The history of modern steel manufacture of Japan is about more than 100 years if the establishment of the latter is ths start point of modern steel manufacturing.
The operation of Nittoho tatara revived in 1977 was done in the Yokota-cho of Ocizmo in January. It is hear that about ten tons iron sand and same quantity charcoals are burnt three days and night, Ingot iron of 2.5 ton are obtained.And about 30 percent of this is roughly divided into Japanese sword smiths of the whole Japan with Tamahagane as a material of the sword.
In Izumo shimane, the exhibition related to the steel manufacture is in each place. Historical Museum etc. of the iron of of the Japan steel(Wakou) museum in Yasugi-shi,Tatara and swords museum in Oku-Izumo-cho, History of Japan iron Museum, and the route of the inquiry of the history of iron.
As for Izumo, the traditional steel manufacture method has been firmly succeeded with the steel making process in a modern factory though it is an age when people very often pay attention to the new one, and a past thing is deserted.
Because there are material etc. by our company, I will recommend the thing that it is referred, and Izumo of iron and the steel of Japan at the reason hometown is visited by all means.
The Nikkan Kogyo Shimbun
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Nippon Brand Prize Next-Generation Cold-working Die Steel, SLD-MAGIC® Jan. 2007
 I got this steel and made some kinds of blade.It is good machinablity compered to AISI D2.and also higher toughness and hardness than D2.
It is my favorite one now.
I think it should be pointed out that pattern-welded steels and Damascus steels are significantly different, and that they are often confused due to appearance. Many older blacksmiths found that Damascus steels had markings like they were pattern-welded, and so called their pattern-welded steels Damascus steel. However, true Damascus steel was not formed via pattern welding but by crystal propagation of iron carbides within the metals caused by very specific impurities.
That is true. This is a very good point. Today we “manufacture” Damascus by using two or more very pure types of steel. We use a precisely temperature controlled forge, we understand the atomic structure and metallurgy of the materials, and everything is controlled for.
In the past, those guys were digging raw materials out of the ground and learning from trial and error. They probably didn’t even think much about the appearance of the steel. In fact, they would have been more impressed by our extremely clean looking steel which has no impurities in it.
John
I hear that state of remarkable sharp edge is achieved on cutlery made from yasugi(Hitachi) steel.Anyway history of tatara steel making method is remarkably deep.
In the oldest japanese myth litarure “Kojiki”,it was written as a imperial treasure sword that was gotten by the god Susanoo.It is thought that japanese myth is still alive with the last emperor “Tenno” in the world.
In addition,the appreciation of Japanese sword was developed from strength inspection of non-destruction.It is big defference compared to Damascus sword. And wavy pattern on sword surface is made not only by forging but also by quenching.
And also beautful wave pattern is controlled by raw material”Tamahagane”.So tamahagane is made by ancient steel making “tatara” which high-tech steel maker Hitachi Metals deal with.
I remember the book The chrysanthemum and sword written by Ruth Fulton Benedict.She is the most famous cultural anthropologist of Japan under the WWII.Did she know Yasugi? Pherpaps,she didn’t know this place because it was the secret still now.
The sword works of the earliest sword smith Yasutsuna was located near by Yasugi.I went to this place by my motor cycle in Japan.In this area,I felt somthing that deep history of steel sword making exists still now.
Famous Kusanagi sword is also related to Izumo Yasugi steel.
Yasugi steel is made by Hitachi Metals.
Another name is YSS.Sharpness made from this steel is famous worldwide.Razor blade of Gillette ,Schick is also made from this steel.
This kinds of steel is all of high carbon type.
But carbon fiber reinforcement will be limited in the field of aero-space vehicles.