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Bryan W.
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Posted: Mon 15 Dec, 2008 3:01 pm Post subject: Welded Tang? |
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Apologies in advance for my sheer ignorance.
I've read in some places that a welded tang is often unreliable in durability, however I have noticed that some places that usually have decent reviews like Darkwood are selling these types of blades.
I was considering investigating the possibility of purchasing something from Darkwood and the reviews seem nice but can anyone comment on their welded tangs or have people been looking at blades from them that aren't fashioned in such a way?
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Michael Pikula
Industry Professional
Location: Madison, WI Joined: 07 Jun 2008
Posts: 411
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Posted: Mon 15 Dec, 2008 3:13 pm Post subject: |
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Normally it is best to avoid welded tangs if possible, but there are certain steels, like L6, that make a great blade, but can't be peened so it is necessary to weld an extension on so that it can be peened. If done properly there is no problem with a welded tang. Not knowing anything as to how Darkwood does their tangs I can't comment on them specifically, but thought I would offer feedback from a makers point of view.
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Nathan Robinson
myArmoury Admin
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Hadrian Coffin
Industry Professional
Location: Oxford, England Joined: 03 Apr 2008
Posts: 404
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Posted: Mon 15 Dec, 2008 7:05 pm Post subject: |
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By the way many originals especially viking blades had welded tangs. I believe Lutel also welds some of their tangs.
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D. Austin
Industry Professional
Location: Melbourne, Australia Joined: 20 Sep 2007
Posts: 208
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Posted: Mon 15 Dec, 2008 8:03 pm Post subject: |
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These days, a welded tang could be a sign of a manufacturer who finds it more cost effective to attach a thinner piece of steel to the blade stock (probably with a mig welder and possibly with a less than perfect weld) than to cut away that which is not to be part of the tang (thus losing steel) or to draw it out (time consuming). This can cause a weak point, particularly if it is welded cold, which is what I'd do if I wanted to cut corners. Whilst fine for a wall hanger, it's bad news for a practical sword.
A welded tang however, can be superior. A number of good knife makers will weld a mild steel tang to a carbon steel blade. This has a few benefits. A softer tang will absorb shock more easily and is also safer to peen. If forge welded properly, the join should not be a weak point in the construction.
I'm sure that the topics Nathan linked will more than explain it but thought I'd try to put it simply.
On the topic of Darkwood blades, I cannot comment as I have no experience with them, but it may be worth asking them how and why this is done.
Darren.
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Dan P
Location: Massachusetts, USA Joined: 28 Jun 2007
Posts: 208
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Posted: Mon 15 Dec, 2008 8:32 pm Post subject: |
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My Darkwood Armory rapier has what I think is a welded tang. So far, this sword has held up to my clumsy flailing around and occasionally cutting light targets like cardboard, fruit, and bottles. Its definitely the most "functional" sword in my collection.
I also have a Hanwei Side Sword with the same type of welded tang constuction. I've not had a problem with mine but others have reported the weld appearing weak, breaking, or bending. Now I am a little reluctant to cut with it.
So... its a valid way to make a sword, but whether it makes a GOOD sword I guess depends a lot on how much effort the company puts into making a quality product.
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Mikko Kuusirati
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Posted: Tue 16 Dec, 2008 12:12 am Post subject: |
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Hadrian Coffin wrote: | By the way many originals especially viking blades had welded tangs. I believe Lutel also welds some of their tangs. |
I think Lutel weld pretty much all their tangs, actually. But they do it right - see here. No rat tails or spot welds. These are very sturdy and perfectly functional tangs, and very securely fixed, they just happen to be made of a different piece of steel than the blade.
"And sin, young man, is when you treat people like things. Including yourself. That's what sin is."
Terry Pratchett, Carpe Jugulum
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Jeroen Zuiderwijk
Industry Professional
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Posted: Tue 16 Dec, 2008 4:21 am Post subject: |
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Hadrian Coffin wrote: | By the way many originals especially viking blades had welded tangs. | Can you support that? AFAIK there are a few rare examples, but those were broken and had a new tang attached. Forging the tang is much easier, and welding the tang on introduces the change of a weld flaw in exactly the most vulnerable spot of the blade. So it's no surprize if this wasn't the prefered construction method.
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Chad Arnow
myArmoury Team
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Posted: Tue 16 Dec, 2008 5:43 am Post subject: |
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Jeroen Zuiderwijk wrote: | Hadrian Coffin wrote: | By the way many originals especially viking blades had welded tangs. | Can you support that? AFAIK there are a few rare examples, but those were broken and had a new tang attached. Forging the tang is much easier, and welding the tang on introduces the change of a weld flaw in exactly the most vulnerable spot of the blade. So it's no surprize if this wasn't the prefered construction method. |
Here's what Peter Johnsson said in one of the threads Nathan linked:
Quote: | It is not uncommon to see welded tangs.
Why this was done can be for several reasons. It might even have been made during original manufacture, where a softer extension is welded on to the blade, forming the end of the tang. Or it may have been made later in the life of the sword, either as a result of refurbishment in a culterīs shop or as a repair after having failed in use (an old weld coming apart, perhaps). |
For what it's worth I've heard the same comment from others who have spent a great deal of time studying period originals.
ChadA
http://chadarnow.com/
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