Putting radius on a ferrule

[phoenix0041]

Anyone know what grit of metal sandpaper to use when trying to put a radius on a ferrule ?

 

[day_trippr]

42

 

[helterscelter]

42

Lol

 

[ChefRex]

What finish do you want and how much material do you want to remove?

I recently remover large scratches from a piece of glass, started a 320 and finished with 2000 and polished, you could never tell it happened, took time and elbow grease. YMMV

 

[phoenix0041]

Have a 2" ferrule I want to put a radius on so I can silver solder it to a boiler.. Only need to take off about 1/4"... Use Something like 100 grit ??

 

[Bobby_M]

Thats not going to have much surface area for soldering

 

[passedpawn]

Have a 2" ferrule I want to put a radius on so I can silver solder it to a boiler.. Only need to take off about 1/4"... Use Something like 100 grit ??

You just need a grinding wheel the same radius as your pot

 

[JKoravos]

Have a 2" ferrule I want to put a radius on so I can silver solder it to a boiler.. Only need to take off about 1/4"... Use Something like 100 grit ??

What kind of ferrule are we talking here? And where is this 1/4" coming off of?

 

[Bobby_M]

You'd be there a very long time with 100 grit sandpaper. It would be best to use a bench grinder to get it really close, then put a sheet of 80 grit paper on the pot and lap the ferrule that way.