Shrinking bent trailer cross beams. M870A1

[zebedee]

Well there isn't really a metal work/fab/repair forum and it's not exactly body work.. but I had some cross member bends to take care of on the trailer.
Probably caught by a piece of oversized equipment when unloading (otherwise center boards would be inplace)

Used screw binders/chains to slightly over straighten bent beam. (Trying to remember Youngs modulus, elastic and plastic limits of steel)

Chained back to lifting shackles.

Warm up the stretched flange then hammer back to flat, blocking back side with bigger hammer.


Allowed to cool before releasing binders.

Rince and repeate on rear cross member...

 

[Weldman]

Heat it till there is no magnetism to it by checking with magnet then pull it out and beat the flange back flat. Cool with motor oil to quench it.

 

[irnworker433]

Nothing like a oxy acetylene torch to persuade things to shape up!! Good job..

 

[gimpyrobb]

GAH! Those chicken legs!