My drill press was dropped and the table broke off. The break is shown in the picture. Nothing got bent out of shape the table part fits this break perfectly. Is there a reasonable way to re-attach the table?
Is that the stanchion onto which the work table is hanging? If so, you are never going to get enough strength again to be useful. The moment of leverage for that is so far out there that any force pressing on the table is going to make any repair fail. I would suggest finding the mfr of the drill press and finding out how to buy a replacement part.
I wrote this as a comment but to long. I kinda agree with Harper I but just welded a cast iron part for our 75 ton press the part has to be hot as he said I used a large propane "weed burner" to heat the part up and used a stainless rod , after welding put it in our rod oven to cool down yes it took several hours when it got down to the temp of the rod oven I pulled it out and placed it on a insulating blanket it took another hour and a half to cool. There were a couple of small spider cracks but it is holding so far this part moves the press bed up and down and the bed weighs several hundred pounds the part that broke was the hoist housing so it is supporting all that weight when moving the bed until the pins are installed under the bed. So it can be done with a stick welder and stainless rod or if you want better results get some cast rod. I also ground out a v to provide better penetration but only went 1/2 way through on 1 side then a top pass on the other side.