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Page AK-47 » Build It Yourself
AK Sponsor: palmetto
Posted: 1/31/2006 10:38:18 AM EDT
My friend lent me his portable-(looks like scuba tanks) oxy-acetyline welding torch- and before i fire it up -  i thought i would ask the pros - what i should do -and what to look for - color wise when i heat up the metal ? , and is there a simple test -(scratch , maybe)- that i can do - to see if i got the metal hard enough ?       Thanks All !
Link Posted: 1/31/2006 12:39:15 PM EDT
[#1]
Check this thread.
Link Posted: 1/31/2006 2:35:31 PM EDT
[#2]
be careful with the Oxy set-up.  it's a hot rig and you could risk burning a hole through the receiver.  if you're careful, you'll be fine.

you're best bet is to do a search on this site and a few others. you'll find some very thorough tutorials.  my limited evperience won't do justice to the topic.

regards,
caspian
Link Posted: 1/31/2006 3:26:57 PM EDT
[#3]
I have used a oxygen/propane rig for all my builds and it works fine. Just watch your heat colors as you temper anf you will be fine!
Link Posted: 1/31/2006 3:39:48 PM EDT
[#4]
So do you guys use just the straight MAPP gas or do you use the combination MAPP and Oxy setups?

I am cheap and cant afford to spend a dime more, mu wife os going to kill me.

OMP

Link Posted: 1/31/2006 4:36:08 PM EDT
[#5]
Mapp should get it hot enough i would think. and for the first time a cooler flame will keep things from getting too hot too fast and ruin the thing. .040 sheet metal can get color fast with anything hotter than mapp.   I have an Oxy/acetyl setup but i will use my jewlers torch for this first one i will be doing . Its a tiny concentrated  flame with a lot of control
Link Posted: 1/31/2006 5:40:42 PM EDT
[#6]
MAPP works great for us cheap bastards.
Link Posted: 1/31/2006 5:43:03 PM EDT
[#7]
I harded 6 ejectors and 4 hammer and trigger pin holes with MAPP gas this past weekend.  It didn't take it long at all to get it up to temp.  I imagine Oxy-acetalyne could get out of  control fast.  FWIW I have plenty of MAPP gas left.  
Link Posted: 1/31/2006 6:49:03 PM EDT
[#8]
Official hyjacker here.   So you guys are just usin straight map gas, no oxy right?

OMP

Link Posted: 1/31/2006 8:57:05 PM EDT
[#9]
How about a propane torch. I have read post where people use those and are happy.
Link Posted: 1/31/2006 9:04:06 PM EDT
[#10]
Yes, they're using the straight mapp gas setup. Usually the MAPP welding set that u can get at HD for like 40 bucks. Tank plus nozzle.
Page AK-47 » Build It Yourself
AK Sponsor: palmetto
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