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67425ks 
Groupie 
Joined: August-11-2010 Location: kansas Status: Offline Points: 91 |
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 Posted: November-25-2010 at 3:28am |
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i have machined some stainless steel and found that if you get in to big of a hurry you can gum up your bit/insert and harden the stainless in a hurry. i have always wondered though if you could use a torch and some finesse to temper it back to where you could drill it. my personal preferance is using a tig welder and erics method or sticking it in the mill with a carbide endmill.
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eric lavine
Grand Poobah 
Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: November-25-2010 at 10:19am |
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67, this comes from many, many 5.4's, 6.0's broken off flush in the truck on an aluminum head...the key is to heat the nut and the stud red and then zap them together....if you can get one out in an aluminum head you can get one out of anything, sometimes you have to be persistant and at times you have to zap the nut and bolt upwards of 10 times because it normally snaps, but i think the combination of heat and good penetration with the mig is key
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