Removing blind hole pivot pin.

Any pics?

 

Looks like a cutting wheel is in order. That pin isnt going anywhere while its still welded in place.

 

A man that is good with A cutting torch can blow that weld out and free the pin... But they need to be GOOD with that oxy-aceyline torch... You don't want to cut the plate that that pin is welded into... Only the weld... If you are go in to replace the entire pin then you can cut the weld and the entire top of the pin, but this may make it difficult to remove the pin once it is free. I have had to do exactly what I have explained here many times working as a welder/fabricator/repair guy.

 

For the side that you have already cut... Heat what is left of the pin just as cherry hot as you can get it... Drench it with penetrating oil, let sit an hour and repeat process... Do this 3 or 4 times, the last time after you heat it don't put oil on it but just let it sit over night... Then weld a large nut to the end of the pin and put a 1/2 in impact gun on the nut and give it a rattle... The nut may need to be rewelded on a couple of times but this will eventually work it free.

 

Another thing... Those pins might actually be threaded in... Not sure as I'm not sure of the application,