2013/10/14 Jon Elson <[email protected]> > Marius Liebenberg wrote: > > I am finalizing my enclosure for my small mill conversion and need to > > ask about coolant flow rate. I can get a 1/4 HP coolant pump with a flow > > rate of 74L/min. Is this good enough for aluminium milling? > > I have a holding capacity of 160L of coolant, will this be sufficient? > > > > > I suspect I have 1 - 2 L/min with my tiny pump, and it can cause a flood. > 74 L/Min is crazy unless you have a 20 Hp spindle. 160 L? I have about > 3 gallons, so that is 12 L. You say "small mill", the coolant system I > mention above is on a Bridgeport mill with a 1 Hp spindle motor. If it > is fully enclosed, then the splashing is less a concern, but you still > can't use more than a few L/min or it will blow your coolant nozzle > apart. I use the 1/4" Loc-Line series, and just one small nozzle. > A Litre of water per minute can remove a LOT of heat. > > Jon >
If you want to flush chips away you need some flow. I have a 33 l/min pump reduced to half and that flows more than enough even for that. To get a figure how much water a 74 l/min moves, have a look at this: http://www.youtube.com/watch?v=IhqPbV4SyBw (74 l/m x 60 = 4440 l/h, he uses that in the experiment) /Sven ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
