4 Attachment(s)
Keep on working on my little project.
Hallo everyone.
I keep on working on my little project.
The first image show my homemade forge,its only a metal bucket backet with clay for insulation,a pipe tube in the bottom with many holes to provide the air blast i recovered an old traveling hair dryer 12 V powered, a simple electric device make me easy to change the air volume.
The second pic show the charcoal fire ignited, you can see also a metal pan full of peanuts oil at about 50 C° and a magnet to check the right moment for the quench.the successive image show the moment of truth,a quick test with a file confirm the success in the hardening phase.
I have forgotten to say that the hole for the hinge must be obviusly executed before this phase.(i want to use pins made of alpacca 2mm)
I make a hardness test with a professional laboratory machine and find 64-65 HRC (if quenched in water instead of peanuts oil i can obtain 66-67 HRC but its too dangerous,i ruined the first razor blank i made in this way,the piece ended full of cracks and now i use it for a scribing template !! )
The last pic show the tempering phase,65 HRC are too much hardness because the blade is very brittle,i use a old toaster oven (800 W),i bought an simple thermometer and check frequently that the temperature does not exeed 200 C° in an hour,with this i obtain a final hardness approximatly of 60 HRC.
This is all for today and i will continue tomorrow,i hope that someone is not bored to see that my strange experience !!
Franz Kleber