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DIY Cutting Oil ... ?
#1385720 Tue Nov 24 2020 01:32 PM
Joined: Nov 1995
Posts: 4,740
J
Unrepentant VW Lover
Has anyone used dish soap, water and motor oil to make homemade cutting oil? If so, how did it work?


John
"Gort! Klaatu barada nikto. KLAATU BARADA NIKTO!!!!"


'49 Chevrolet 3804

Re: DIY Cutting Oil ... ?
John Milliman #1385858 Wed Nov 25 2020 03:40 PM
Joined: Nov 2004
Posts: 1,906
J
Workshop Owner
Never tried that, but just about any type of oil is better than nothing. In a pinch, I've used motor oil, WD 40, penetrating oil etc.

For the real tough materials like stainless, tool steels etc, nothing works better than Moly-Dee. Very pricey, but a little bit will go a long way.

John


J Lucas





1941 Chevy 1/2-Ton
1942 Chevy 1.5-Ton SWB
1959 Chevy Apache 31 Fleetside
1959 Chevy Apache 32 Fleetside
1959 Chevy Viking 40

My Flicker Photos! [flickr.com]

Re: DIY Cutting Oil ... ?
John Milliman #1385885 Wed Nov 25 2020 05:55 PM
Joined: Oct 2005
Posts: 3,090
"Hey! I sound like Darth Vader!!
The machining lube that came with our lathe, cold saw and mill, is a water based, non-foaming soap style that seems to work ok. Doesn't smoke and cools the work. It reminds me of a tire soap. Doesn't rust up the machinery, too.

Re: DIY Cutting Oil ... ?
John Milliman #1385933 Wed Nov 25 2020 11:57 PM
Joined: Aug 2001
Posts: 4,483
2
Shop Shark
I ditto what John L. Says.
Don’t see how water and oil would mix. The soap would foam up.
Just use the oil you have on hand and the thinner the better.
WD-40 works great on aluminum though.

Don


Of all the things I've lost in my life, I miss my mind the most!

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery [stovebolt.com]
More pix on Photobucket [s893.photobucket.com]
'46 2-Ton grain truck
'48 3/4-ton grain truck
'50 2-ton flatbed
'54 Pontiac Straight Eight
'70 American LaFrance pumper fire truck.
Re: DIY Cutting Oil ... ?
John Milliman #1385954 Thu Nov 26 2020 01:49 AM
Joined: Nov 1995
Posts: 4,740
J
Unrepentant VW Lover
Thanks! I have a couple of busted bolts to remove at work (one is my fault, the other two are not wink ). Jerry made me a couple of nifty dies to make exact center holes in the bolt parts still in the hole and I am just wanting to make sure I get it right on the first try as I do not think I will be getting a second attempt on any of them. I have my nifty Snap-On bolt removal kit (with left hand carbide bits) standing by.

The backhoe is in the shop and the skid steer will be soon.


John
"Gort! Klaatu barada nikto. KLAATU BARADA NIKTO!!!!"


'49 Chevrolet 3804

Re: DIY Cutting Oil ... ?
John Milliman #1385974 Thu Nov 26 2020 03:58 AM
Joined: Feb 2004
Posts: 21,586
H
Boltergeist
I've used a mixture of unsalted lard and 30 weight motor oil for a long time. Just use enough oil to thin out the lard so you can apply it with a small stiff-bristle brush like plumbers use for applying soldering flux. When the going gets tough and the chips get a little hot, things start smelling like bacon frying. Another popular formula for lard-based cutting lube uses kerosene as a thinner instead of motor oil.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: DIY Cutting Oil ... ?
John Milliman #1386067 Thu Nov 26 2020 08:49 PM
Joined: May 2005
Posts: 138
5
Shop Shark
Not trying to be cute, but I have always used cutting oil for cutting oil. Do you have better results with the motor oil recipes? I do use lubricating oils for thread forming taps.

Mark

Re: DIY Cutting Oil ... ?
John Milliman #1386069 Thu Nov 26 2020 09:00 PM
Joined: Feb 2004
Posts: 21,586
H
Boltergeist
One of the best thread cutting lubes I've used was Carbon Tetrachloride (AKA fire extinguisher fluid) back in the days of brass-canister hand-pumped extinguishers. Since the snowflakes with lace on their drawers discovered that everything including breathing "causes cancer" it's impossible to find cutting lubes of any kind with any carbon tet in them. It's hard to beat plain old sulfur-based cutting fluid, but since it's so effective there's no telling how long it will be before it's banned, too!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: DIY Cutting Oil ... ?
John Milliman #1386256 Sat Nov 28 2020 02:08 AM
Joined: Oct 2005
Posts: 3,090
"Hey! I sound like Darth Vader!!
Same snowflakes that want EV vehicle batteries, no matter the pollution used to make them and the waste batteries to just go away when they are done with them?

Re: DIY Cutting Oil ... ?
Hotrod Lincoln #1386287 Sat Nov 28 2020 11:45 AM
Joined: Sep 2001
Posts: 30,784
ace skiver
Yep, if you feel like you might not win in an argument, start calling the other side silly names?

Originally Posted by Hotrod Lincoln
. . . Since the snowflakes with lace on their drawers discovered that . . .

Originally Posted by MNSmith
Same snowflakes that want EV vehicle batteries, no matter the . . .

Too bad we can't read/discuss scientific, engineering, economic and historical facts without resorting to name-calling?


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
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