Who has an oxy cutting torch ?
Who has an oxy cutting torch ?
Next hard question is "Who can use it their oxy torch properly?".
Any takers for a run through for the basics on gas axemanship ?
Or would a write up on gmaw be preferred -thats MIG if you did not know.
I thought it might busy up the board a little bit.It's getting a bit sleepy around here.
Comment please !
Grahame
Oxy Acetylene cutting Pt 1
Ashore has done a fine job with the basics of Oxy cutting. I can add a few things that I have observed over the years of teaching students.
Safety
Never take the oxy plant for granted. Even the smallest set of CYLINDERS mistreated have the potential to kill should things go wrong. Thermally,acetylene is the most efficient gas known to man. It has the greatest explosive range as well.
It ranges between 3 % acetylene to 97 air mix and 92 % acetylene to 8% air mix.
If you want experience how a diesel engine combustion sequence works, just leave a trace of oil or grease on the regulator thread where it screws into the cylinder. The bad news is that after the 2000 Lbs. cylinder pressure hits the grease or oil, an explosion usually follows. On the large cylinders it means the regulator explodes at just about face level.
Setting up
.Always make sure fittings are the correct ones for the plant. If you are a scrooge don’t skimp here. I would caution people not to mix differening brands of OXY gear particularly the Comet 3 clones. The tolerances differ and you put yourself at risk. In my humble opinion the CIG Comet 3 rates with the best the world has to offer.
New operators tend to set the torch flame too high. At the neutral flame setting if you have to raise you voice to be heard clearly over the noise of the flame its set too high.
You do not need trainer wheels for any cut under 300mm long. If you are really hard up to cut a straight line setup an angle section with a handle . 50mm equal angle is ok.Cut 8mm from the top to give a vertical height of 42 mm. If I remember it measures 42 from plate surface to the shoulder formed by the nut against the cutting nozzle. This is for a type 41 cutting nozzle only . You might have to check this measurement as after 20 years my memory is a bit hazy.
That’s enough for starters I will have to finish this latter.
Grahame
Transforming the Woodrat into a semi automatic oxy cutter!
Gidday:D
I got to admit one of my fav metal working processes at the moment is OXY! I love the dam thing and am in awe of those able to wield a flame blade effectively! I particularly love flame gouging!
Love setting up a piece of mild steel stock and cutting it with a beautiful smooth finish on the 'quickie' (Our automatic OXY setup at trade school!) I can cut competently by hand but am far from being able to get that smooth finish at right angles that I'd love to be able to achieve consistently!
Anywaz for those of you that are familiar with the Woodrat Joinery system the creators of this gem have created a hand operated aluminum extrusion that enables x-y axis movement (from right to left or left to right) n I reckon I could fabricate a gem of a semi automatic oxy cutting rig using the rat as a basis...................... Will start posting a few PICS once I start toying with ideas!
REgards Lou:D