Blade Straightening

Jeff D · 30th January 2005, 04:32 PM

Quote:

Originally Posted by Ferguson

I've never done it, but the method shown here looks promising.

http://www.ksky.ne.jp./~sumie99/togi,process.html

Steve

Thanks for the link Steve, that does look simple.

Jeff

tom hyle · 30th January 2005, 04:51 PM

Nice clamp; I don't know that it'll help much with the spring temper issue. Japanese swords, are, of course, soft, with hardened edges, and sometimes approximately spring-tempered skin-steel over a soft core; much easier to bend. The tool that used to sett the teeth of saws (called a saw-sett) is a tiny vice that works by the 3-blocks method. So on a small scale this is a routine procedure. Remember though, that this point has already been stressed; I've encountered people who prefer to rebend to a slight "s" for this reason; to not double-stress the same exact spot, but one 1/2 inch over along the blade.

Tim Simmons · 30th January 2005, 08:58 PM

Hello Jeff ,I would only straighten a blade if it was bad on the eye.I have a sabre that has obviously been used in battle,if one was to slash a head at say 20-30 mph, most swords are going to bend ,most of all around the last 12 inches or so.To make it straight would be to take all the life out of the sword.I would only take the very worst bends out.Tim.

Jeff D · 30th January 2005, 09:40 PM

Thanks Tim,

The bend itself isn't that bad, but it does make it tight in the scabbard. It should still have some "life" in it as there are plenty of other marks. Including three notches on the grip which I personally hope only represent wear and tear (I am one of those squeamish collectors).

Jeff

erlikhan · 31st January 2005, 01:20 AM

i am not so sure but ,i think i had heard from somebody that it could be straightened by some manner of heating and cooling back after getting reshaped. It is possible even to repair broken swords that way, and possible to apply makeup to it to erase the tracks of the repair and obtain a homogenous looking. I will ask that guy tomorrow or the day after once more for more detail.

30th January 2005, 04:51 PM	#2
tom hyle Member Join Date: Dec 2004 Location: Houston, TX, USA Posts: 1,254	Nice clamp; I don't know that it'll help much with the spring temper issue. Japanese swords, are, of course, soft, with hardened edges, and sometimes approximately spring-tempered skin-steel over a soft core; much easier to bend. The tool that used to sett the teeth of saws (called a saw-sett) is a tiny vice that works by the 3-blocks method. So on a small scale this is a routine procedure. Remember though, that this point has already been stressed; I've encountered people who prefer to rebend to a slight "s" for this reason; to not double-stress the same exact spot, but one 1/2 inch over along the blade.

30th January 2005, 08:58 PM	#3
Tim Simmons Member Join Date: Dec 2004 Location: What is still UK Posts: 5,854	Hello Jeff ,I would only straighten a blade if it was bad on the eye.I have a sabre that has obviously been used in battle,if one was to slash a head at say 20-30 mph, most swords are going to bend ,most of all around the last 12 inches or so.To make it straight would be to take all the life out of the sword.I would only take the very worst bends out.Tim.

30th January 2005, 09:40 PM	#4
Jeff D Member Join Date: Dec 2004 Location: B.C. Canada Posts: 473	Thanks Tim, The bend itself isn't that bad, but it does make it tight in the scabbard. It should still have some "life" in it as there are plenty of other marks. Including three notches on the grip which I personally hope only represent wear and tear (I am one of those squeamish collectors). Jeff

31st January 2005, 01:20 AM	#5
erlikhan Member Join Date: Dec 2004 Location: Istanbul Posts: 452	i am not so sure but ,i think i had heard from somebody that it could be straightened by some manner of heating and cooling back after getting reshaped. It is possible even to repair broken swords that way, and possible to apply makeup to it to erase the tracks of the repair and obtain a homogenous looking. I will ask that guy tomorrow or the day after once more for more detail.