Yeah I Know The Obvios Is Heat But What Exactally Happens? I'm Running Into The Problem Of Warping Head Flanges When Building Exhaust Manifolds. So I'm Trying To Better Understand What Is Exactally Going On So I Can Prevent This From Happening. Thanks

Kyle

 

Put the flange onto a head or jig and hold it down. Its just the fact that the welding heats the metal upto a point where some shrinks/expands and then warps on cooling.

Use jig/head...

 

THE HEAT!

 

Basically, heat allows the atoms to move more freely. The rate at which it cools determines where they stop (what kind of pattern), and different patterns take up different volumes. So you have warpage.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by richeybrooks &raquo;</TD></TR><TR><TD CLASS="quote">THE HEAT!</TD></TR></TABLE>

Thanks Captain Obvious

I would bolt it to a Jig or head like mentioned above.

Corey

 

are they mild steel or ss?

when you heat metal up in expands, when it cools in contracts, and not necessarily back into the same position. i would say you are getting your metal too hot. when welding you want to heat up the metal as little as possible.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95c1v1cs1 &raquo;</TD></TR><TR><TD CLASS="quote">

Thanks Captain Obvious

I would bolt it to a Jig or head like mentioned above.

Corey</TD></TR></TABLE> I personally would use a jig, a whole lot cheaper to replace if you warp that as opposed to the head. Just IMO..