waterblock machining info

[mops]

hello.

ok, so i sourced out this copped slab to make myself waterblock.

i have access to decent workshop with drill presses and millin machines.

however...
i heard that working with copper is pretty hard.

my first try will be to produce a waterblock to cool one peltier.

my question is:

i'll be drilling it on the drill press, but i think i might need some of that white fluid, i think it's coolant for machining metals. where cn i get it ???

it it possible to work without it ???

any other tips i should know ???
i never worked with metal... i got some xperience working with wood... but i gues copper is another story..

any inpur appreciated.

[H2gO]

*Recall’s the good old school days - engineering workshop practical so long ago*

The white liquid is a lubricant & coolant in one

You’ll need it - work peice & milling face Will get Dam hot


:D

[Volodkovich]

When i did my block i just used some CRC. I asked the guy at the tool trade place, and he seemed to think it didnt matter too much. Btw, i was milling 17mm deep, and with 1mm gaps between the passes it didnt tear or rip the fins too much like i heard it does. Though, it might be different with different grades of copper. And the crc didnt make MUCH difference - It just cut a little cleaner, which doesnt matter when making a block. But yea, that milky stuff (cutting fluid, i know they call it "milk") you should be able to get from any engineering shop.

[SerN]

You will have to watch that the milling tool bit doesn't get too hot otherwise it will screw up the hardening of the steel and make the metal soft which in turn will make the mill bit blunt. If you take it easy you should be fine, if worst comes to worst just put a bit of water on it. :)

[Byteme]

chokesteel choke

any way i rhink they really do use milk if not why not try and maybe even cooking oil shoud do it?

one question tho when they work wif br a s s why do they
always prevent the brass dust from falling into the steel,copper,....

[Zilla]

Could try using grease or motor oil... I use motor oil for tapping & drilling, its a bit smelly though (and hard on the hands)

www.chevpac.co.nz have some cutting lubes, aint priced too bad @ $16.70 per litre.

The milk stuff is good, comes off easily with a bit of soap and water & dosent smell bad.

But no matter what kind of lube you use, you need a constant supply to the cutter for it to work best.

[Method]

I allways thought you can make that white stuff yourself?

[ktulu]

Originally posted by Method
I allways thought you can make that white stuff yourself?

must... resist... temptation.... :D

[bob_dole_nz]

Originally posted by ktulu
must... resist... temptation.... :D

Down boy

[dumass]

that 'white stuff' (its actually white and brown) is just oil and water mixed together..

[whetu]

I use baby oil for that task when doing metalwork.. makes interesting conversation if the supermarket checkout chick is feeling fiesty ;)