Cutting Fluid/Coolant

   / Cutting Fluid/Coolant
  • Thread Starter
#11  
I've been using basic windshield washer fluid.
I don't get rusting & don't have the Oil film to cleanup when I'm done.

I've read the Windshield wash thing on here before...didnt know about the rusting. Mebbe I'll try Windshield Wash + Dish Soap :confused2:...
 
   / Cutting Fluid/Coolant #12  
I've been using 90 wt gear oil. It's in one of those oilers you see from "The Wizard of Oz". None of the stuff I drill is super critical, plus I can use the oiler to lubricate other things.

Is there anything wrong with using 90wt gear oil for cutting?
 
   / Cutting Fluid/Coolant #13  
be carefull with windshield washer fluid it does burn pretty good as do all antifreeze mixes the flash point is 240 deg. if you ever get bronze coloured chips whille drilling it means they are hotter than that, yellow 420 brown 500 purple 600 these are approximate temps .
 
   / Cutting Fluid/Coolant
  • Thread Starter
#14  
I've been using 90 wt gear oil. It's in one of those oilers you see from "The Wizard of Oz". None of the stuff I drill is super critical, plus I can use the oiler to lubricate other things.

Is there anything wrong with using 90wt gear oil for cutting?

My non-scientific observations.... Bits dont last as long when using oil...I used to use whatever oil "scraps" I had left over in the bottom of quarts, etc.. Oil would smoke, make a stink, and when cutting did nothing for heat...which is the #1 enemy of bits. Well I take that back....SWMBO yelling at me saying the whole house stank (my work/machine shop is in the basement) is the #1 enemy... :laughing:

When using my soap & water mix, I'm serious when I say after drilling a 3" hole in 3/8" plate, I could immedietly touch the holesaw and the teeth were room temp. Other then the paint being worn off the holesaw, you cant tell they're used.
 
   / Cutting Fluid/Coolant #15  
My non-scientific observations.... Bits dont last as long when using oil...I used to use whatever oil "scraps" I had left over in the bottom of quarts, etc.. Oil would smoke, make a stink, and when cutting did nothing for heat...which is the #1 enemy of bits. Well I take that back....SWMBO yelling at me saying the whole house stank (my work/machine shop is in the basement) is the #1 enemy... :laughing:

When using my soap & water mix, I'm serious when I say after drilling a 3" hole in 3/8" plate, I could immedietly touch the holesaw and the teeth were room temp. Other then the paint being worn off the holesaw, you cant tell they're used.


that's because you are using the water for cooling....NOT lubrication....keeping cool=long tool life......I do the same after hogging out with hole saw...

I've cut deep holes with holesaws as long as you flood cool it and blow out chips

I use to use oil/brush on lathes and mills years ago....never again....flood cooling is the way to go, even if its from old dishsoap bottles or garden hose

keep cool,

Bill
 
   / Cutting Fluid/Coolant #17  
I needed to drill a few holes one day and all I had was Simple Green in its spray bottle it worked better than the cutting fluid I had been using. My thought oil makes something slide it is not for cutting you don't wont the bit to slide just cut. I do a lot of taping in my work in the field small taps 6/32,10/24 and 10/32, 12/24 and some 1/4-20 for all of these I use Door Ease a stick lube sold only at NAPA auto parts I can tap 6/32 hole in thin metal with a drill motor I never use a hand tap. All of my taps are 2 flute gun or spiral point taps hard to find but will last a long time. I can't rember the last time I broke a tap but when your are older than dirt you can't rember a lot.
 
   / Cutting Fluid/Coolant #19  
.


For tapping aluminum (and drilling, milling, turning too) you can't beat A9. Especially for tapping.

Should be avail at McMaster-Carr. Also, two flute, four flute, spiral taps, etc.

.
 
   / Cutting Fluid/Coolant #20  
Dave,
If you're using drills, hole saws, taps and bandsaws the best cutting material is the solid wax bars that stick to the cutters. Someone mentioned Tapmatic (LPS), this is good stuff and I've used it for years in my shop. Stick the drill in it and the wax melts down the drill as you cut keeping things lubed.
Fluids are fine for a lathe where you recoop the fluid but you get too much waste and not enough concentrated cutting fluid on the drills in portable use.

MSC Google Search Results

It's not especially cheap but it lasts. I even use it on aluminum.

Rob
 

Tractor & Equipment Auctions

2007 Pace American Enclosed Trailer (A49461)
2007 Pace American...
2016 JLG 3248RS 32ft Electric Scissor Lift (A50322)
2016 JLG 3248RS...
PORTER CABLE 150 PSI AIR COMPRESSOR (A50854)
PORTER CABLE 150...
2014 VOLVO VNM DAY CAB (A51222)
2014 VOLVO VNM DAY...
2013 LONE STAR TRAILER MFG. (A50854)
2013 LONE STAR...
2016 FREIGHTLINER CASCADIA DAY CAB (A51222)
2016 FREIGHTLINER...
 
Top