weld fill in for re-drill

[thirdroc17]

Interesting read, and the vast majority of the answers are of no use for my last "mistake". Course, I had a slightly different "problem".

Non critical hole, not threaded. 1" diameter hole. That I manged to miscalculate and drill wrong by 3/4" of an inch. I do not have a wire welder. I do not have a mill. Being on a tight budget, I don't have most of the tools so many seem to take for granted.

So I just welded it shut with the rod I had, which happened to be 6013, apparently LUCKY ME, grind, punch and drill again. It came out close enough for the application.

The one thing I could have done, and would have if I'd known, I would have heated up the area before welding to reduce the cooling/hardening effect. :thumbsup:

 

[dragoneggs]

Interesting read, and the vast majority of the answers are of no use for my last "mistake". Course, I had a slightly different "problem".

Non critical hole, not threaded. 1" diameter hole. That I manged to miscalculate and drill wrong by 3/4" of an inch. I do not have a wire welder. I do not have a mill. Being on a tight budget, I don't have most of the tools so many seem to take for granted.

So I just welded it shut with the rod I had, which happened to be 6013, apparently LUCKY ME, grind, punch and drill again. It came out close enough for the application.

The one thing I could have done, and would have if I'd known, I would have heated up the area before welding to reduce the cooling/hardening effect. :thumbsup:

Good on ya!

 

[City Farmer]

If you really want to punish yourself, tap it bigger. Bottom out a piece of threaded rod (soft screw) in the tapped hole, weld flush and grind flat. Then, drill and retap for the needed size. After all that you'll have punished yourself enough to never make that mistake again. Then, you will have properly repaired the "mistake" and be able to get some sleep.

 

[arrow]

If you really want to punish yourself, tap it bigger. Bottom out a piece of threaded rod (soft screw) in the tapped hole, weld flush and grind flat. Then, drill and retap for the needed size. After all that you'll have punished yourself enough to never make that mistake again. Then, you will have properly repaired the "mistake" and be able to get some sleep.

I like your way of thinking CF. In the middle ages, you would have been the guy whose job it was to invent new ways of torturing people.

 

[Capricious]

I would just stick a bigger bolt in the one side and be done with it...

 

[City Farmer]

I like your way of thinking CF. In the middle ages, you would have been the guy whose job it was to invent new ways of torturing people.

Unfortunately, I've plugged 100's of holes this way in my line of work.

 

[arrow]

I would just stick a bigger bolt in the one side and be done with it...

What! and have one side not match the other! Dastardly I tell ya, just plain dastardly. (never mind me Cap .I'm just sick in the head this way).

 

[MinnesotaDaveChalmers]

What! and have one side not match the other! Dastardly I tell ya, just plain dastardly. (never mind me Cap .I'm just sick in the head this way).

So drill out the other smaller holes to match - then thread them all the same size.

 

[arrow]

So drill out the other smaller holes to match - then thread them all the same size.

I got them tapped just right as they exist. This is inch thick material so I'd just rather mess with the one brain fart hole.

 

[Sodo]

Well anyway now that the jobs all done?.there are still some details of this project that are interesting to me.

The one thing I could have done, and would have if I'd known, I would have heated up the area before welding to reduce the cooling/hardening effect. :thumbsup:

There are internal stresses that will be created, and thus lessened by heating the a larger area. Also I think it would weld better. Are you thinking of the internal stresses? In any case, unless this area is highly stressed (or flexed in usage) internal stresses won't matter.

And it's my understanding that mild steel is not capable of hardening or annealing either (just by heat) but I could be wrong. If it was a heat-treated (or heat-treatable) material it would be no fun drilling that wrong hole.

Does anybody have knowledge to share on this?