Author Topic: Via Welding-BlogWhat Tom said may surprise you....  (Read 1039 times)

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Via Welding-BlogWhat Tom said may surprise you....
« on: November 16, 2017, 03:27:09 PM »
What Tom said may surprise you....

What is interpass temperature?

I want to thank Tom Helm for his overview of FCAW (flux core wire feed) at last Thursday's WeldComm. Almost anyone who welds for a living, needs to know flux core.   Flux core is always in demand. In this photo, I thought Tom was warning us about dropping sparks down your gloveā€¦ that REALLY hurts.. The truth is he was giving us some useful information about interpass temperature. What he is saying is that the back of your hand is very sensitive.  So here is how you check your temperature:  Place the back of your hand a few inches from your last weld, pull your hand away if it's TOO HOT. If you can hold it for up to 10 seconds, then you have the CORRECT interpass temperature of about 450-500 degrees.  This is not to be confused with the minimum or PRE-HEAT tempurature, which is at least 50 -100 degrees Fahrenheit.


Check out this article on interpass temperature  (The James F. Lincoln Arc Welding Foundation)
and this article on preheating



Source: What Tom said may surprise you....

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This is from the fine folks at http://welding-blog.com.  Looks like a good resource of information to learn some new skills, etc.  

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Offline dsrace

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Re: Via Welding-BlogWhat Tom said may surprise you....
« Reply #1 on: November 16, 2017, 06:05:29 PM »
hmmmm
" the less talent they have, the more pride, vanity and arrogance they have. All these fools, however, find other fools who applauded them " .    ERASMUS 1509

Offline fabr

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Re: Via Welding-BlogWhat Tom said may surprise you....
« Reply #2 on: November 16, 2017, 07:03:28 PM »
Damn good preheat info tight there yummi!!  Interpass linky no worky though.
« Last Edit: November 16, 2017, 07:05:22 PM by fabr »
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