Sven

You could also use citric acid. It gives better results and is alot faster.
When your smithing is done leave it overnight in a bucket with water and citric acid.
The next day brush it up under flowing water and you have it nice and clean without any damages on the steel.

Greetings from Germany,
Sven

Hi Valentin,

if you want to buy some finished parts look at this
The venturi heads looks good to me
If you use 3/4" tubes they must be 20-25 cm long.

I don

Ohh yes, i know your problem
Did you make it too hot?
Heat it maximal to darkred if you use silver alloys or medium red at copper alloys.
Quench it often to make it soft, so you don

Holy Cow what are you doing

On your video you can see much unburned gas floating out of your forge.
To much pressure and to less air.

On your pictures you could see your problem at lower pressure. The gas burns already in your tube. The gas flow becomes to slow. Reduce the diameter and make a flare.

This links would be helpful.
Bernoulli's Principle
Good burner with MIG-Tip
The simplest solution
Another simple burner
Forced air burner

I have found some old books, don't know if anyone is interested in this old things :cool:

Forgework
Forgecraft (1913)
Elementary forge practice; a text-book for technical and vocational schools (1920)
Forge-practice (elementary) (1904)Newer Edition (1919)
Hardening, tempering, annealing and forging of steel (1903)
Tool-steel; a concise handbook on tool-steel in general... (1902)
Blacksmith shop practice (1910); The forging of hooks and chains and a simple coalforge
Hardening & tempering (1912)
Stell & Iron (1884)

And a little bit german music "The Forge in the Forest" (1897-98)

Have a nice weekend
Sven

Indiginous wood or ordered from some where? Thanks for sharing!

This two knives where my first try in forgewelding. Just to test my selfmade Gasforge
Ok...i've got some little help from some excellent blacksmiths at an Hammer-In.
It is so much easier if someone shows you this little trickys that makes the difference. Since then i have never lost one package.
Contrary to this, Mokume Gane is my love-hate relationship. Don't know how many packages i have dropped on the floor before i have figured out my own little tricks :cool:

Ciao Sven

Here it comes...

My first knife: Stainless steel 1.4043 similar to 420?

Kitchenknife: O2 + 1.2767(X45NiCrMo4) 80 layers; Handle: Cocospalm



Knife: O2 + 1.2767(X45NiCrMo4) 80 layers; Handle: unknown very hard wood



Ciao Sven

Hello everybody. My name is Sven. I'm 31 years old and come from Hanover.
Two years ago my hobby knivemaking brought me to the blacksmithing.
In the meantime i have mastered the forgewelding, quenching, Mokume Gane and the base lessons in smithing. The blacksmithing scene here in Germany has a very familiar atmosphere and it seems to me thats so all around the world.
So i hope you will excuse my bad English

Sven