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welding 1045

welding 1045

(OP)
i am trying to make a large double horn anvil(180-200+ pound). i am using a 4"diameter shaft 19" long(69 lbs) for the top plate and intend on forging this shaft into a triangular shape in cross section. the shaft will be placed in a rectangular base so it makes a large v on both sides, then filled in with weld in order to make the top plate and base as solid as posible. the round horn will be welded on and the square horn will be forged. i believe the shaft is 1045(am having the saft analysed for alloy). also, i may need to add weld to get the shape and/or mass in the square horn depending on how the forging goes(using a 40 ton press for all the forging). can anyone give advice on the welding, arc vs. mig, size of wire, type of wire/electrode, pre and post heats? any other ideas or tips would be appreciated!

RE: welding 1045

The 1045 steel is weldable with certain precautions. Based on your requirements, the amount of welding suggests using FCAW versus SMAW or GMAW. The preheat for welding will be 350 deg F minimum.

Weld wire should be SFA 5.20 E71T-1C, CO2 shielding gas and DCEP

I would suggest a stress relief after all welding at 1100-1150 deg F for 2 hours.

Suggest surface NDT (wet MT or LPT) to be done to ensure no cracks or other defects since this will be under impact conditions.

Oh, yes, don't hammer unless the anvil is at RT or higher.

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