Cutting Oils Explained
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- เผยแพร่เมื่อ 12 ก.ย. 2024
- Cutting Fluid Functions and Properties
Cutting fluid
Types of cutting fluid
cutting fluids coolants and lubricants
cutting fluids in metal cutting
cutting fluid and lubricant
cutting fluid for aluminum
best cutting fluid
cutting fluid for cast iron
cutting fluid for steel
coolant
cutting oil
Types of Cutting Fluids - Explained with example
wettability
home made cutting fluid
built up edge
bue
your audio quality is great and you care so much that you lower the volume when using loud machines so it won’t interfere with your voice over! Thank you!
Thank you for taking the time to explain in great detail...
thank you fro the nice comment
Ray
4:47 - Wow this make sense... glad I did research on this. I see everyone pointing the coolant no where near that location and always wondered why professional CNCs have the water jetting behind the spindle lol. Thanks for the informative explanation.
Thank you for the nice comment and thank you for taking the time to comment. It is much appreciated.
Woah, great video. This is the most informative video I've ever seen on cutting oils and fluids. I recently restored an old B&S horizontal mill and have been looking for information trying to decide whether to fill it with an oil or a soluble. It sounds from this that a sulfured mineral oil would be ideal for my general home shop shenanigans, but most likely I'll just use a soluble because it's cheaper lol.
Glad that she liked the video. Thanks for taking the time to comment. It was much appreciated.
This is a great video. I have been looking for a good explanation like this for a long time. Thanks for putting this together!
Now this was WELL worth watching - I'm going to try some of your recipes, lol!
Excellent presentation of information - thank you.
YT used to be a place that was about sharing knowledge and where passionate experts shared. Today there is a lot of hot air and nonsense.
It's a pleasure to find a teacher on here again.
With respect to inactive cutting oil DIY solution (with its magic 95% composition :P ).
Different cooking oils have different smoke points where they break down - but also importantly where their wettability changes. This is the principle behind "seasoning" cast iron.
Normally an oil poured on cold metal will "ball up" due to high surface tension.
I'm not super informed on when higher smoke point oils begin to lose that and spread out vs low smoke point. I wonder if they would be more helpful than Vege oil in extending its use?
Olive oil has less heat capacity so it might be worse? (also goes rancid very easily).
For your light machining fluid would the use of an oil like avacado or other with high smoke point make it more effective?
Drilling mild steel or using hole saws - your inactive solution would be ok?
How about "Gummy" metal like Aluminium?
2nd Topic: BIOFILM
Machinery that circulates fluid like a cutting agent is at risk of bacteria forming what is called "Biofilm". This is what plaque on your teeth is as example, or the slimy layer on a pipe. Bacteria produce biofilm to breed and protect from threats. Bacteria in a biofilm is 500x more resistant to killing than free bacteria. This means that bacteriocidal cutting fluid may not clean out an "infection" if your machine is gummed up with algae or whatnot through its feed tubes and channels.
It may be necessary to use a flushing agent that will break down biofilm and remove it. I'm talking soft bacterial growth - not calcified formation or calcified bacterial growth which can also occur long term due to mineralised water sources. Oil/Grease or other contaminant buildup/blockage is different too. Detergent will clean oils... might not clean biofilms.
Something like hypochlorite (bleach) will work but will take time to break down the gunk and need flushing through. An algicide may also be required as an alternative. See pool or spa supplies.
Afterward you would want to flush very thoroughly to ensure no damage is done to components and then fill with your new cutting fluid.
Concise and short - perfect! Anchor Lube is pretty good but not perfect. Great on stainless though. Stains bed ways if not removed. Since it's a soap it's pretty safe too. I use it when I have to weld something because it doesn't contain oils.
Thank you for sharing that information
Next time I have something they need to weld I will keep that in mind
And thank you for taking the time to comment much appreciated
Ray
Great video
Thanks.
thank you for the nice comment and thank you for taking the time to comment. It is much appreciated.
Ray
I’m a little surprised no mention of Chlor-paraffin as a cutting oil?
It’s unique property in comparison to oils, is that oil is repelled from heat source, so as a lubricant & coolant in high pressure machining, the heat at the tool point tip, actually repels the lubricant / coolant. The hotter it gets the more it repels the oil, thus it gets hotter - vicious cycle.
Chlor-paraffin is the opposite, the more friction & heat the more of the Chlor-paraffin is drawn to the heat source which is where the lubrication & cooling is required.
Chlor-paraffin is cheap & once was the cutting fluid of choice in machining.
These days it’s sold as an oil additive for differentials & gear boxes etc.
It’s no good as an engine oil additive, the chlorine reacts with gasses of combustion to create hydrochloric acid that corroded engine internal parts while sitting.
Machine shops used to buy Chlor-paraffin by the 44/55 gallon (205 litre) drum full.
I’m guessing the fumes it gives off kill you most likely or shrivel your balls maybe? 🤷♂️
Don’t seem to hear of its use much these days.
I personally use “Tap Magic”.
first off thank you for sharing
People always skip the comment section and this is the place that everyone can put their input into and there’s some real gold nuggets inside the comment section because I can’t cover everything in the videos and I do make mistakes and forget things
Thank you for sharing. It is much appreciated.
Ray
Well done. The ultimate question: what is the perfect cutting oil for small shop, or hobby use where changing materials is constant. I use WD40 for aluminum and a commercial cutting oil for steel. It makes a mess and is difficult to clean up. My lathe came with a flood coolant system that I've never used.
Best thing to use is coolant, an emulsified oil like hangsterfer’s s500
I was looking for your take on oatey oil on very small lathe (like unimat or Sherline) as a cutting oil. Thank you!
Oatey is a good cutting oil for high speed, threading, it is sulfur-based, and therefore good for pressure based cutting methods
Don’t forget that ventilation is extremely important when using cutting oil
Ray
Very well explained thanks
Thanks for the nice comment and thank you for taking the time to comment it’s much appreciated
Ray
Including mineral oil and lard?
Thank you for the excellent video content!! 😊
Question: Is there a place where I can download this in written/text form (or maybe a graph?) that I can refer to as needed?
...I find this information to be EXTREMELY useful but there's no way that I'm going to be able to remember it, and repeatedly hunting through the video for the one piece of information I need at that moment just isn't practical!! 😨
Thanks again!
If you send me an email at shopandmath@gmail.com
I will send you the PNG files of the slides that I used in the video.
There’s about 100 of them.
Ray
When you send me the email, make sure you refer to wanting the files or I might not remember.
Thank you for taking the time to comment. Much appreciate it.
Ray
Great video, thank you
Excellent. Thank you
thank you foe the comment
Ray
Good job of vulgarisation for novice like me!
Is "Cutting" and "Tapping" two totally different things, or are they more similar than different in terms of needing a cutting/tapping fluid?
Hi justin
It depends if cutting is high pressure or not
Drilling could be done with 5% (coolant / oil )and 95% water because the action required is more cooling and lubrication.
Milling could be up to 12%. we are tapping would require 100% oil because of extreme pressure and lubrication requirement.
Hopefully this helps
Ray
cutting pastes would have had been an interesting add-on (i.e. anchor lube)
You are correct that would’ve been an excellent idea, but I just never thought of it
I personally don’t have a lot of experience with it.
Thank you for the addition and thank you for taking the time to write a comment. It’s much appreciated.
Ray
will the emulsified fluid influence the welding process and later galvanisation (how is the cleaning prosess after cutting?)
Thank you for such an interesting question.
Unfortunately I don’t have the experience or experience to be able to answer this question properly.
I can give a couple of suggestions
I would clean the area with a solvent or brake fluid cleaner and then wash with a soap, water and brush mixture, to make sure that it’s completely clean.
Are you preheating before welding?
Preheating the material might burn off the oil’s depending on the temperature.
I hope this helps.
Ray
What coolant are you using in your CNC machines.
Stagnant coolant can/will produce dangerous skin bacteria.
At this point in time, I currently don’t know, but we use the same coolant on all of the machines manual grinders Manuel lathes,mills CNC mill and lathe
bacteria is a concern
in most cases. If you’re using synthetic coolant, the coolant itself doesn’t grow bacteria. It’s the contaminants in the coolant that bacteria grows on
Manual equipment for us. It is not a problem because we only use spray bottles. The CNC equipment has skimmers and the machines has proper maintenance schedules,
It is also possible for someone to be allergic to synthetic coolant or become allergic
Many years ago before I started teaching, I worked with a person who became allergic to coolant he had 20+ years in the trade and had to quit
I hope this helps. Thank you for taking the time to comment. It’s much appreciated
Ray
I'm looking for a cutting oil that would work best for the milling of 7075-T6 aluminum. I've been looking at both CUTit Multipurpose Cutting, Drilling, Tapping, Threading and Machining Oil (but it's non soluble) and TapMagic EP-XTRA which where I've been looking doesn't mention weather or not it's soluble. I have also seen some that say they are specifically formulated for milling aluminum but I'm not sure how important that is. I'm looking for something that will prevent pitting and preserve the life of my tooling and this will only be used for milling of 7075-T6 aluminum. Are the choices I've selected good, or do you have some better suggestions for me?
You r great instructor.please improve your audio quality.
thank you
Ray
@@shopandmath your audio quality is great and you care so much that you lower the volume when using loud machines so it won’t interfere with your voice over! Thank you!
Thank you
Thank you for your nice comment and thank you for taking the time to comment. It’s much appreciated.
Ray
I try glass cleaning agent for tapping
Great video! Question though! Do you think Hoppe’s Lubricating Oil (High Viscosity and penetration) for firearms, fishing reels, and all mechanisms, would make a good cutting fluid?
I’m not quite familiar with that brand of oil
In theory if you want cooling action more than lubrication do you want coolant with a high concentration of water
If you want a cutting oil that what is it is more lubricant-based you want a cutting oil that has no water
Penetrating oil , Versil, paint thinner
Is used on aluminum or non-ferrous material
You do need to use extreme caution because the chemicals that come off of some of these chemicals are dangerous to your health and can also be flammable
Is cutting oil any good as a sealed bearing lubricant?
This is only my opinion.
If it’s a sealed bearing, how’s the oil going to get inside?
When I pack a bearing or repack it, I like to know the environment that it’s in going to be running in is to fast or slow. How about the temperature? Is it outside? Is it running outside on the shaft or in a sump?
Use the recommended grease from the manufacturer
With all of that, said honestly, if you’re dying of thirst in the desert any drink will do
@@shopandmath the rubber sealed rings pop off at the sides if you need to grease or maintain them
सर इस कटिंग ऑयल को बॉडी के अंदर जाने से कैसे रोके। क्योंकि अंदर जाने से सर्दी खांसी जुखाम हो जाता हैं।
बाद में कोई समस्या तो नही होगा न।
प्लीज सर बताए।
Hey sir please redseal practical exam information video uploaded
I have 10 of them posted
Hey, uh ... 12:00 doesn't add up.
you are right it should be 75%
Ray
8:55 patten is spelled Patent
good catch
Hi
I am trying to make water soluble milky cutting oil diesel base ..I hv tried quite a few emulsifiers which can emulsify diesel with base oil but no success as of now..can you guide me in this Regard Sir
I would avoid using diesel
@@shopandmath
Thanks for taking time to Reply..
Here only diesel base cutting oil is used which turns milky white when added to water..so it's a humble request you to suggest chemicals which can emulsify base oil with diesel..Regards
White lead and linseed oil, just saying.
Oy wot?
vinegar? :P
or windex?
There was a lot of great content in this except some of it was explicitly wrong.
Thank you