Non-Chemical Mechanical Stripping

[aflacglobal]

This gentleman Is great.

 

[Photobacterium]

I have a friend that had a metal shop and he had some sort of machine similar to your description that used ceramic cones as the 'peening'. I think he told me the purpose of the device was to polish or smooth the burrs off of tooled metals, I can't really remember what it was for. Harold probably knows since he was a machinist by trade. I also saw an episode of Dirty Jobs last year where Mike Rowe cast some drain covers out of nickle and they put the raw casts into a similar machine to polish the drain covers and deburr them. That machine had very fine particles for the peening, I think they called it shotting.

i worked at one place in the mid-80's that had a large CNC shop (several larger mills & lathes) and the typical accessories ... tool room, metrology lab, fixture making area, proto machine shop for us engineers, etc.

there, the call-out was "tumble deburr". most of our parts were aluminum, often with copper plating and 50 microinches of gold.

i always liked that finish - both the tumble deburr alum, AND the .000050 gold.

 

[solar_plasma]

gsp wrote:

One day, in L.A., I got the idea of using abrasives to remove the gold. I put some pins in a rock tumbler along with some silicon carbide powder.

wayne wrote:

In a 12lb rotary tumbler you could run from 4 to 6lbs of pins and remainder being grit & water. I'd say fill the barrel 1/2 full of pins maybe a little less. Add crushed ( almost powdered glass) to almost 3/4 full, cover with water and run until pins are clean,

Just got that idea and found again, there is no good idea, anyone hasn't had before did anyone have succes with that method on pins since?