forge:burner angle injection???

C

Chapaveire

Joined
Apr 3, 2001
Messages
48
hi!!!
on Ron Reil'site I can read he prefer a direct injection at the center right of the forge floor.
it's good for iron, but is it good for bladesmithing and damascus?????

Iwant to make a forge and I want to make the better forge for the better blade!!!!help me !!!
an other think,it's my last knife:
thank you!
Fabien C.
 
I don't know about the forge but the knife looks good! What kind of wood did you use for the handle?
 
en français c'est mieux pour moi alors.....
le manche c'est du pistachier et un morceau de buis !!!
a+!
Fabien
 
For you French impaired (myself included) I do believe that translates to the handle is of pistachio wood and a piece of boxwood.

Bonjour Fabien, J'ai fait la petite forge (un réservoir de freon) de Ron avec le bec à gaz qu'est l'injection directe.

At this point I will have to switch to anglais, because my wife, who speaks some French refuses to translate anymore of this knifemaking "lingo"!:D

I made Ron's freon tank forge with the direct burner injection. This poses some problems because of the hot spot when forging and heat treating knives. It is hard to get an even heat over the whole knife. However this same hot spot might be of benefit when welding damascus if you are welding a few inches of the billet at a time. I prefer the whole billet to be at welding temperature. In the future I think I would try the burner injection angle that creates the swirling effect of the burning gas in the forge in the hopes that it would create a more even heat thoughout the entire forge chamber. Since the chamber of the mini forge is so small I'm not sure the burner angle matters that much.

I hope this has helped a little bit. Please excuse our French! My wife is learning and trying to teach me some also so I'm sure we made several mistakes!
 
hello, thank you for informations and your Wife speak french better than most Frenches !!!
best regards!
Fabien
 
I recently made 2 forges. we put the jet in straight to start on one and angled on the other. The striaght one appeared to have a hot spot in front of the entry point the other appeared to have a better heat distrubution and heated the whole forge quicker. My friend who has had a forge for many years likes the hot spot in his. We ground off the inlet quite simply and angled the second one and re welded.

If non of the folloing replies are able to give you a scientific answer you may like to do a bit of experimenting and see which suits you.

Once you put a brick in the forge to rest the blade on the thermal dynamics are realy messed up anyway compared to the empty forge that may also have some bearing on the result.

No science to this answer just what I have done.

Good luck. Both forges got great results.
 
Hello French dudes


from Belgium here (yup, up north), I made about three gasforges for myself by now .. Not bad for a university student huh? Anyway, I got some pics online, but it would be better if I mailed 'm to ya. I make damascus in them as well at very low pressure so it must have been a goo design :D. Actually my design is impler than Reil's, because they are working at really high pressures.

bartknifenut@hotmail.com

Very nice knife indeed.. but the damascus is really nice.. how did you make that? I'm just learning how to do it.

Qui, je parle la francais aussi, mais je préfère l'anglais.. je suis flamand alors :D Du correspondence en Francais ce n'est pas un probléme, mais les reponses sont en Anglais.. plus facile pour moi.

greetz and take care, Bart.
 
The best gas forge I have built, the burner is mounted on a tangent and angled toward the mouth of the forge. I get a nice even heat.
 
Hé, Fabien,

why not make ONE forge with TWO different burner inlets, one from the top to get the hot spot and on tangential to the walls to get the gas swirl effect? This way you may try both by just welding in another small piece of tube and you may even change permanently from one system to the other afterwards or use the forge with two burners.

Achim
 
it's a good idea!!!
I could test two angles burner,and I could see what is better for damascus blades !!!!!
what do you think about verticale forge (like Don Fogg!) with venturi burner?????
you can see it's more easy to speak french on our French'forum......

Fabien.
 
I never tried this design, but Don Fogg seems to swear by it. Maybe i will build one from the bottles i could get two days ago. I think that at least for the making of damascus billets this forge has one big advantage: you don't have to care for the forge bottom as much. The welding flux may just drop down. You may even make a forge with a partially open bottom to let the flux fall through.

Achim
 
hi!!!
florge floor is the reason why I want to make a forge like Don Fogg!!!
what do you think he put on ???
Fabien
 
I expect you will want to build more than one anyway. The direct burner is good for general forgeing and I like the hot spot for that. For damascus I have one with a larger burner (mini mongo) and angled at about 22 degrees up. This gives me a hotter forge and better coverage. For swords I have a long momma with multiple burners and I have several bean can forges for small items. I have a couple more forges for general work including a brick forge. It's great for sustained heat.

Building the forges is almost as much fun as the knives.:D
 
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