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Science Forum Index  »  Engineering - Joining (Welding) Forum  »  welding 8620 to 4140
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John
Posted: Sun Feb 04, 2007 10:47 pm
Guest
I am making up some custom tooling for a machining job and have to join
the two metals. I am looking at using a MG 600 series stick rod for
the operation. The one piece of 8620 is heat treated and carborized,
the 4140 is in the annealed normalized condition. I will be preheating
the metals before welding. Does anyone have any better recommendations
on welding this job.

tia

John
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Ernie Leimkuhler
Posted: Mon Feb 05, 2007 12:08 am
Guest
In article <45C69AC0.95947E8E@intergrafix.net>,
John <amdinc@intergrafix.net> wrote:

Quote:
I am making up some custom tooling for a machining job and have to join
the two metals. I am looking at using a MG 600 series stick rod for
the operation. The one piece of 8620 is heat treated and carborized,
the 4140 is in the annealed normalized condition. I will be preheating
the metals before welding. Does anyone have any better recommendations
on welding this job.

tia

John

Pray?

Why Stick?

Not my first choice for welding dissimilar metals.
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