316 Grade Stainless Steel

[TrevorW]

Tried cutting on a lathe

hardly touched it

anyone know best method for machining

cutting tools/rpm etc

[Hagar]

send a pm to steve aka kinetic, he should be able to help with this one.

[koputai]

I try to avoid using 316 (difficult when you build devices for underwater use!), but when I have to, I keep the machining to the minimum possible, and pay a machine shop tons of money to do it!

Sorry, not much help, but 316 is a PITA.

Cheers,
Jason.

[sheeny]

I'm out of touch with machining, but I got this:

from here:
http://www.aalco.co.uk/technical/datasheets/Aalco_Datasheet_St_St_316.pdf (http://www.aalco.co.uk%2Ftechnical%2Fdatas heets%2FAalco_Datasheet_St_St_316.p df)

Al.

[nightstalker]

My old mans a retired Marine engineer and more than once has made a similar comment.. is there a reason you have to use 316.. instead of brass or aluminium ?

[TrevorW]

Weight it's for the counter weight shaft

something as heavy non corrosive and easier to machine will suffice

Cheers

[koputai]

Brass tarnishes, and aluminium corrodes, and both are very soft. I use aluminium for underwater housings, but I get it hard anodised, which changes the surface structure. Hard anodising as you would expect hardens the surface, and also renders it non-conductive to electricity. But, if you want something really hard, and really corrosion resistant, it's hard to go past a stainless such as 316.

Cheers,
Jason.

[GeoffW1]

Hi,

You could try machining grade 303 or 304. Corrosion resistance is a little less, but may be still OK in a countershaft.

Ugima 303 is the bullant's pants:

http://www.atlasmetals.com.au/files/sections_ugima.pdf

Cheers

Cheers

[Louwai]

Off topic, sort of...... Well it is about machining.

I thought it was cool........

http://www.gaskrank.tv/tv/motorrad-fun/3...-10963.htm (http://www.gaskrank.tv/tv/motorrad-fun/36-kg-schwerer-alu-daishin-cro-10963.htm)

[bojan]

I want this machine :eyepop::thumbsup:

[DavidU]

Me too ! That's an awesome machine.