CLASS RACER FORUM - View Single Post - Electro-polished valve springs?

Mike Gray · 10-10-2007, 08:55 PM

SS Wannabee,
I worked at a lab that had an electro-polish tank. We used it to for stainless lines for ground support systems on the shuttle. Think of electro-polishing as the opposite of plating, as it removes a very small amount of surface material. (the higher points) The stainless would come out looking like it was chrome plated. I understand the process is usefull in adding strength by eliminating locations where stress risers might form that lead to cracking. (Like polishing rod beams)
The process was done in a tank (can't remember the solution) and an electrical lead was attached to the part and another to a couple of plates. As the current flowed through the part the electro-polishing would take place.

(at least thats the way I remember it from 31yrs ago)
Try Google

10-10-2007, 08:55 PM	#4
Mike Gray Senior Member Join Date: Oct 2006 Posts: 623 Likes: 312 Liked 693 Times in 201 Posts	Re: Electro-polished valve springs? SS Wannabee, I worked at a lab that had an electro-polish tank. We used it to for stainless lines for ground support systems on the shuttle. Think of electro-polishing as the opposite of plating, as it removes a very small amount of surface material. (the higher points) The stainless would come out looking like it was chrome plated. I understand the process is usefull in adding strength by eliminating locations where stress risers might form that lead to cracking. (Like polishing rod beams) The process was done in a tank (can't remember the solution) and an electrical lead was attached to the part and another to a couple of plates. As the current flowed through the part the electro-polishing would take place. (at least thats the way I remember it from 31yrs ago) Try Google