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Burr and matting media for vibratory tumbler to nicefy steel

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howsitwork?:
crowing about it doesn’t make it right , :doh:

PekkaNF:
Now, when pecking order and correct flint stone size is established, I can tell that the tubler is awaiting on the post office.

I have exhausted official reasonable acquisition channels for proper deburring media for low carbon steels and tool steels.

Looks like there are many options and all of them has some complications and benefits. Luckily I am just looking for a reasonable hobby solution for inferequent use. Seems to simplify a whole lot of stuff. Once I visited a compound bow manufacturer in US and they had a tubler to remove flash out of glassfibre, all looked very simple, but they told that it took some time to arrive with optimal media.

I though the whole thing would be really simple, and maybe it is: There are some machinining companies that use this method for deburring. I am thinkking of paying a visit and buy/beg small amount proper deburring media. Those comppanies have done their homework, should work for me too.

My "Plan B" is to visit my father/brother, they have collectionf of old junk and cars on the farm, possibly one extra securit window somewhere to do a little sience with it and sudden impact.

chipenter:
You can also buy crushed glass for block paving instead of sharp sand , be aware that it is very sharp .

PekkaNF:
Conacted two metal firms that do metal polishing and deburring. Another doesn't do it anymore (apparently a lot of manufacturing has been relocated on low cost countries to lower manufacturing quality) and another does manually. Both knew what was after but could offer only synpathy.

I made few enquiries about crushed glass, for some reason very fine as a blasting media is really easy to get, but real granules are unoptainable, next step is decoration size.

How ever local hardware store had "foam glas" for insulation, I really don't know what that is in English 50 litre bad weights about 20 kg and costs 14 Euros. Since it is actually a usefull medium temp insulation material it probably has more use as a . insulation.

It is pretty friable and floats atop of water. I put some parts for about 40-60 minutes cycle to it, checkking every 10 minutes and a tool steel shank come out really nice. Other parts were interesting. This media knoks off finest burr, and matts the surface if it of decent quality, but really strugles with pitting/rust etc. Good news it that matte-finish ir really shallow, hardly any dimenssional change, dis nothing to internal holes or threads.

Looks consumbale, the media rounded off fast and a 30% of it was reduced to sludge. I washed them to start with. Sludge/dust is easily rinsed off, it is really fine and hard so see how it would have any enviromental hazard.

It would be pretty good if it were a whole lot harder/heavier. Maybe good for plastic or other soft material.

I have a problem with "stone", think there is danger of leaving hard particles behind. But might need to try that one next.

Pekka

assink:
Cant you use basalt gravel or something like that? The stuff you would use on drive ways?
We have drainage pipes in our fields, they used "glass ash" that stuff was rock hard and cheap.
I suppose is some sort of crushed slag, dont know if it's available in ur area.

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