Evaluation and Repair of Wrought Iron and - Purdue e-Pubs ...

214D.2 Filler Weld for Eyebar Connection Corrosion RepairThe following describes the step-by-step procedure for a filler weld repair of an eyebarmember:1- A chemical analysis was completed to determine the weldability of the wroughtiron.2- Material was removed from the eyebar connection to resemble the corrosionrepair pattern being modeled. (For actual corrosion repair, the plate should beground to solid metal remove corrosion present.)3- The wrought iron pieces were preheated to about 200 o F prior to welding.4- E7024 SMAW 1/8” diameter welding rod was used to place an initial pass atvarious locations on the eye connection. This was done with a current of around120 to 130 Amps using a DC Reverse Polarity Miller Arc Welding Machine seton medium, which corresponded to 17-19 volts. For the eyebar with corrosionaround the hole and free edge (Eyebar B), passes were initially placed around allof the edges to create a dam effect for the rest of the filler weld. For the edgecorrosion repair (Eyebar A), the initial pass was placed along the edge in the longdirection of the removed area. Photographs of the initial pass patterns can be seenin Figure D.7 and Figure D.8.5- Passes were added with E7024 SMAW 1/8” diameter welding rods until thesurface of the weld was above the original surface of the eyebar. In between eachweld pass a chisel hammer and wire brush were used to remove the slag on thesurface of the welds. The temperature was also checked using a pyrometer toensure the base metal temperature did not exceed 250 o F, to reduce heat distortionand ease in welding.