End Mill Lubrication

what i do like about wd40 is that it pools on the piece so i dont need to spray it continuously, but just like with the silicone spray, i'm sure that its terrible for me to breathe in... would also like an option that is somewhat not as unhealthy.
 
JimDawson said:
I've not had good luck with silicone. WD-40 works very well, but I was having problems with it plugging up my no-fog coolant system. Kerosene also works very well and does not plug up my coolant system. ...../QUOTE]

You're misting Kerosene? "The flash point of kerosene is between 37 and 65 °C (100 and 150 °F), and its autoignition temperature is 220 °C (428 °F)." [Wikipedia]

You may not be creating sparks machining aluminum, but Kerosene mist floating around machines and shops with electrical switching seems like a bad idea.

Ken
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Chip Hacket said:
Mikey, what's A9? Please don't tell me I need another oil can!
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Yup, sorry. Relton A-9 is yet another cutting fluid to try. WD-40 works for most aluminum but if you need a really good finish try A-9 and a sharp HSS tool. You only need a little bit of it per cut and a 16oz can will last years.
 
I've been using a 16 oz can of A-9 for 2 1/2 years, it's about 1/3 gone. seems to do a good job.
 
Went to the local nuts & bolts to pick up some more SS bolts and i bought a gallon of wd40 and a tall can of Rapid Tap, the wd40 works for sure, so i'll see how the rapid tap holds up.
 
I use Trim Sol for all metal cutting and machining operations. I generally mix 9 parts water (I use distilled) to 1 part Trim Sol and put the mixture in a spray bottle. Cuts like butter. A gallon jug lasts a very long time.

"TRIM SOL® is a soluble oil (emulsion) coolant concentrate which is the world standard general-purpose multi-metal coolant for general machining of ferrous and nonferrous materials. It has the lubricity and “guts” necessary to do heavy-duty machining center work and still provide the wetting and cooling necessary for high-speed turning and grinding operations. "
 
Like CraigB1960 I use a Trim product (CR350) for a flood coolant (as stated above, I use Tap Magic Aluminum or Rapid Tap for a brush-on).
Something I discovered though: When I lived in Idaho I was able to use tap water to mix the Trim fluid with and had no bad side effects. However, here in Kansas if I use tap water things start to rust in a few days making the use of distilled water necessary.
 
dragos28 said:
The silicone worries me as it says its highly flammable and shouldnt be sprayed on hot surfaces.
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WD40 is very flammable too. I did some flammability tests by wetting a 12'' piece of cotton string and setting fire to it.
The string was hanging from a piece of coat hanger and was lit at the bottom. Marvel Mystery Oil and some tapping fluid were also tested.
WD40 burnt the quickest of the four fluids I tested. So a word of caution about flammability....and doubly so if it is misted.
 
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