SAND FOUNDRY CORE how to make 695 tubalcain
Вставка
- Опубліковано 9 вер 2024
- I made this video & these cores before I cast the shaper hand wheel. I originally planned on using a core to form the hub hole in the casting. Instead, I drilled the hole, but decided to release this video anyway.
This is video is really 2 in one.
First half-- How to Make a Sand Foundry Core.
Second half. What Is a Core Drill?
A core such as this will produce a hole in a casting & minimize shrinkage in a thick portion of the wheel.
Please subscribe & ring the bell.
#sandcasting#foundry#coremaking#sandcore#foundrycore#corebox$coredrill
Mr. Pete, I wanted to say you have a new viewer to your channel. His name is Joe from Bridgeport, CT and just recently turned 100. He was a machinist for his whole life making ball bearings and a World War II veteran. He stopped working only about 5-6 years ago because he fell and went on workman’s comp! He has a shop in his basement but can’t get down there anymore, so I turned him on to watching your UA-cam channel. He enjoys it very much. Just thought you’d like to know!
Say hello to Joe. I am so happy That he is watching very.
Thank you very much for getting him started On watching my videos
Home of the Bridgeport milling machines
Susan, that's a great story. Please tell Joe I said thanks for his service to our country.
Please tell him thanks for his service!
If he’s at all like my mother, rest her soul, he’ll start referring to Pete as that kid on UA-cam!
I find this very interesting! Generally, the more you show tends to help as you have excellent tips and tricks!
Yesterday I went back and started watching one of your old series on building a steam engine where you used a core to cast the cylinder bore. You didn't show the process of making the core, and you stated in the video to go back and watch one of your previous videos on the process. It's quite interesting that you posted this video this morning. I really want to thank you for taking the time to make these videos and share your knowledge.
thanks
Thank you Mr Pete for the detail you provide with your videos.
Thanks Mr Pete... please don't apologize for teaching us... we're here to learn... my high school had dropped most of the 'shop' classes by the time I went to there, if you wanted to learn machining, automotive repair, or carpentry, you duel schooled at the High School and Community College (which admittedly has excellent trades schools). That was fine for those knew they wanted to be a Machinist or Auto Mechanic or Carpenter because they got both their HS Diploma and their AS degree (and most certifications - ASME or AWS). Glad I found you (and others on UA-cam)
Thank you for watching
Cant get enough of your casting videos.
Just so you know, you have inspired so many ideas and projects between my nephew and myself. I can hardly thank you enough for what you have provided. Hopefully I can pass on a tiny amount of your information to the students at the small school I am at. It will probably be the only machinery related thing most of them will be exposed to during their formative years.
Thank you very much, I am sure you are a strong influence on those boys
You know that anything that includes the phrase "don't tell my wife" is going to be good.
As always I learn something new Pete.Thanks for producing great videos.
Thanks for shareing Mr. Pete, I never new about coreing bits!
Windy Hill Foundry guy named his latest dog "Dollar" because they found him abandoned at a Dollar Store. Great video, I have been curious about the cores and now I know more.
i think its interesting mr pete i watch almost all of your videos in the last year i am mainly interested n gun smithing but machining is a life skill that shouldnt go overseas great vido as always
I could be on the way to the hospital to the emergency room and my wife would shout "Hey Dollar General, let's stop."
Thanks for the information you never know when you might want to make a core. I have never used one actually. I will of course be waiting for the next video.
Had I not seen the very beginning I might have thought we were making beef sticks, especially when that sand took on the pink tone. My wife chuckled as you were saying “don’t tell my wife”. Interesting content. The extra credit helped me as I have seen these bits before but had no idea what the intended purpose was.
Worked in a foundry in the 90's. Cast aluminum cold plates for beverage dispensers. We used permanent molds, themselves an iron casting. Our cores were made of H13 or P20 steel. Very interesting work. Especially dealing with the pattern maker who had our molds cast. He had to deal with cast iron shrinkages and expansion plus aluminum shrinkage of the end product.
The trick about using a wire thru the core used to be pretty common practice. Used to have a cast iron cylinder about 3" dia. x 1-1/8" ID x 15" long cast. It was done horizontal and the core was reinforced with a piece of steel rebar rod about 1/2" dia. Worked like a charm. We used to have these cast in quantities of 75 to 100 per order, close to 800 a year. No core drill used, just a long length carbide shank boring bar that went in, rough and finished the bore just past halfway. Another operation, finished the bore from the other end. We used to have these cast at Alamo Iron Works back in the days. Got a lot of my visual experience in that foundry when we would go and visit. Foundry is now long gone, so sad....
When I first watch a handcraft video I prefer it to be "full format" like you videos are! I find people do the small things in a million different ways, and it's very helpful to see :)
Never seen a core drill before, interesting! At first I thought it might be for removing sand cores from castings since they can be so difficult to get out.
Thank you for posting these. I think some UA-camrs pass over the "boring" parts forgetting that sometimes it is these parts that carry the most information. Watching someone do something they are good at would be hard to find boring, particularly when that person is trying to teach!
No matter how short a lesson it’s always good. Nice to file it away for later use.
Always enjoy watching your videos Mr. Pete! I love the detailed information you provide
Interesting as usual.
I think I remember a project or two of yours that used cores.
And the extra credit was useful. I didn't know about core drills.
Thanks.
I always stay for extra credit, there is too much to learn to skip it! Thanks for sharing Lyle.
Thanks
So that's how they're made - thanks Mr Pete
It does not matter the subject, it is your style that makes the experience interesting Pete.
Good stuff, thanks
as a former bronze foundryman, i find it interesting!
Excellant cores Lyle 👍
I always learn something. Thanks
Wonder no more, it's interesting.. keep up the good content.. thanks
Most interesting. I never saw a casting core made.
always up to learn new things!
Very interesting and informative! Thanks!
THANK YOU...for sharing. Yes.
Hi Mr. Pete. ....I really appreciate the still shots at the ends of your videos. Thanks and have a happy day!
Huh. I've been a woodworker for decades and have often used a router bit called a "core box bit", and never had a clue as to why it was named that way. Now I see - it cuts half a cylinder in a sand mold. Thanks Mr. Pete.
Very interesting Mr. Pete. That takes me back to my days at Penn mar castings, a gray iron foundry in Hanover Pa. I worked mainly in the grinding room but substituted in the sand mold room a little. We used wooden mold boxes and im not sure sure what was in our sand. we would soak the finished sand molds in alcohol and light them to harden them. It was a hot dirty place to work but I was young, indestructible, and full of vim and vigor. God bless my friend!!
I bet that was a hot job
@@mrpete222 Yes sir, but very nice in the winter.
May Allah grant you healthy life sir for us to benefit from your work.
Lots of Love
Muhammad Nasr
Afghanistan
I learn something new with every video you make.
Thank you mr Pete.
I'm learning a lot never did any foundry operations that would amount to anything,keep up and keep on.
This is very interesting. Not boring at all! I always enjoy watching you do shop stuff
Hi Mr. Pete,
One useful thing I will pick up at the dollar store is super glue. It seems that every time I open a bottle of super glue, I use it once and the next time I want to use it, it is dried up. If you are only paying a dollar for the bottle, it is more acceptable than if you were paying the usual $3-5 dollars. I wouldn't make a special trip there though but if I knew that someone was going there anyway, I might ask them to pick me up some. Thanks for the video!
-mike
Enjoy your videos. Never too old to learn something. I'll soon be 78, can't say I've ever seen a core drill. By the way I have a Walker Turner drill Press like yours. Heading to my shop now, got SS pins to make for my son. I waste a lot of my time watching UA-cam videos.
So do I
Nice set of cores there. Thank you for sharing.
Well done. I learned something!
Awesome
Interesting to me, seems like you have a ton of knowledge you could pay forward... thanks
You asked Lyle, but I find it interesting. A far cry from an automotive foundry I worked in with massive resin bonded cores for water jackets, etc.
metal coat hangers are so handy from tie wire to gas welding rod
On days when we weren't preparing molds for giant Caterpillar rear end housings or working the pit with the slinger making the molds for some other large part that I don't remember what it was, I was sent to the core room. There I'd set by large pallets of cores with a file like tool that was more like a concrete stick to file the flashing off of cores. Having to get up at 0400 to get to work on time was hard enough for an 17 year old but setting for a few hours filing those little cores was torture.
I want too use some of my extra credit. LOL Good video.
You should!
I'm interesed, but I'm a casting guy.
Collapsability also helps in getting sound castings; the metal can hot tear shrinking around a core with no give. With some collapsability, the core develops some squish once the metal hits, letting the metal squeeze it down a bit.
Thanks
You can mix that sand and the liquid by levigating it with two long flexible spatulas. If you use geometric dilution you then mix the smallest volume with the same volume of the larger volume substance. Get that smooth and then add an equal quantity of the larger etc. Until it is all combined. My blood runs cold as I recall this and look at my old pharmaceutics textbooks on the office wall. I can, however, assure you it really does work. If nothing else you have now a new word and a reason to say levigate!
I have shaken out many cores in commercial foundries. We would use an air hammer which is about the size of a typical hand drill, think of it as a handheld jackhammer. You install a chisel bit that is the right size for the job. You can work on the core itself being careful not to damage the inside of the casting. Then you place the chisel on the riser, never the actual cast part, and you can shake the heck out the casting breaking up the core inside. Basically like breaking one big rock into a bunch of little rocks through the application of extreme violent vibration.
Thanks Mr Pete - very interesting.
Hello Mr. Peterson,
This was an interesting video... not seen this before, so good to learn.
Take care.
Paul,,
Dollar Store, you should be happy she's not going to the Hundred Dollar Store.. BTW, it's a good video. A tour of your foundry set up would be nice if you get the chance.
I always stay for the extra credit Mr. Pete!
This was interesting. I just thought cores were made from Petrobond.
I like the casting video’s! And the extra credit content!
I find it very interesting. I just wish you’d continue on with your rants 😎
GET WELL Alfread!
I for one will be using the tips presented here. I picked up some core drills at Arnfest a couple of years ago so now maybe may be motivated to use. Now I must look up what the heck resin sand is.
Very interesting, I think I may have a couple core drills I inherited from my uncle. I Never knew what they were.
Lyle, a VERY interesting video, thanks for posting it. Interesting chatter pattern in your core box after opening up the hole. Is that due to the core drill being 4 flute ?
Interesting to see a core drill
Used core drills back in the day to size iron castings prior to tapping for 1 inch and larger NPT in Warner & Swasey chuckers They work well dealing with out of round cored holes. Very rigid.
Funny enough also common on certain models of vehicle for the engine blocks to have core sand left in them, due to not enough cleaning being done on the raw blocks and heads from the foundry, and this then migrates through the various parts with fluids till they block up. Common to have clogged heater cores with sand, and for oil galleries to spin bearings as they obstruct oil flow.
Brian from Ma. Great side bar about the diffrence in drills .Great video Thanks Besafe
Glad you enjoyed it
Now to look in the box of what this is if for I have, think I have some bits like that, always learning Thanks
I haven't used waterglass since I set the cord on the top of my range 30 years ago.
Mr. Pete, thanks for another interesting video of cores and core drills. I wonder if the foundry workers got a little hungry smelling those cereal cores cooking?
I usual break at least two cores before I get a good one. But I don't use that much sodium silicate. It makes it too hard to dig out. I do use pressurized CO2 but no heat. Casting is fun, sometimes frustrating.
Your videos are like those commercials. “Well folks, that’s the end of this video....BUT WAIT!!! THERE’S MORE.” LOL
Not boring.
Wonder how a masonry drill would work to break up a core. Always enjoy your videos.
I am interested!!
Lyle I have had pretty good luck just using petrobond molding sand for simple cores like the ones you just made. There was no need to bake it.
Ted
Yes, I often do that. But they are kind of delicate
I never had a student successfully make a core with petro bond either. It was just too fragile.
Thank you for sharing your knowledge with all of us!!
*Rookie/student here...
Question: What operations would call for a core drill instead of a drill bit? I understand that the core drill bit has a more rigid body, but if used on a drill press the torque applied is only axial and wouldn't matter as much as it would on say a mill with horizontal loading right? Also could this operation have been accomplished with a regular drill bit resulting in a smoother/better hole?
Thank you Sir!
How funny. I also have a single core drill in my collection. In my case it is smaller - somewhere in the 3/8" to 1/2" range as I recall. With no casting background, I had to find out for myself what this 3-flute, round-shouldered drill bit was for when I found it among my dad's other drill bits (which I've since inherited). I've accumulated quite a few other miscellaneous drills in odd lots in the 60 or so years following, but never another core drill.
Hello peter. I guess they are not all that common. Many many people do not seem to know what they are
@@mrpete222 - Well I certainly didn't when I first ran into the one I now have, back in 1962 or so.
Interesting on the bake, I did not know you could do this with out CO2.. my wife hates dollar general, and me when I bring chemicals in the house
This is non-toxic I believe
Not if you live in California, everything is toxic out there. I bought some carrots at the Piggly Wiggly and they had a warning on them, apparently they cause cancer if you eat them in California. Lucky for me I live in South Carolina where it's safe to eat carrots.
It's crazy out here! I have to go to Nevada to get non-detergent oil because they won't sell it in California (God forbid someone puts it in their car!).
Interesting!
Mr. Pete, Mark Pershing used epoxy glue as a bindind for his core sand. Is that a workable alternative method? Thanks for sharing, I always enjoy your instruction videos.
Lyle, the Material Safety Data Sheet (MSDS) has been replaced with Safety Data Sheet (SDS). These have different pictograms to help people understand certain issues at a glance, like an image of an explosive, or an image of fire, etc. The United Nations is involved with this, and may be one of the few good things that came out of that.
I used to do environmental compliance, and hated the name change. Typical EU overreach. I don't recall ever seeing pictograms, maybe because I was collecting SDSs for "safer" materials at the end.
@@componenx images.app.goo.gl/f84BXtTwYtoAA7db9 these are what I was referring to.
Right tool for the job, you were punching the core sand down the tube! Good video.
Pun intended
Lyle, how do you wash the waterglass/sand mixture off of your hands? Simply soap & water or do you need something "stronger"?
Also, your High School English teacher wants you to stay after class because of misspelling "seperate" which is actually spelled "separate." ;)
Interesting :-)
Hi Lyle, thanks for this video. Have you ever used casting plaster for cores or any other molds? Have you got anything you could say about this in the upcoming video?
Have a good weekend. Stay safe and well :)
Master does not work. Moisture content is too high, even if you bake it
@@mrpete222 OK thanks :)
I used to rent a house from the official Wild Bill impersonator in North Platte, NE I. 2003
You can make large quantities of water glass for cheap by combining drain cleaner (NaOH) and silica based kitty litter (not the clay stuff). Add some water, careful it will get very hot.
The first part of this video explains: ua-cam.com/video/U1ZWJCuJAYA/v-deo.html
Thought you were making biscuits!
So a core drill is a type of reamer that can remove more metal, "rougher", but still only to size rather than create the hole. Now I know!
did I miss something...
you did not use the core when you made the casting ?
The sand mix wont get crusty if you held your breath the whole time you work with it. 😁
Good show! Ron W4BIN
Eggs? No I did not know that.
👀🇦🇺👍
Can you make your own CO2 with some baking soda and vinegar to set the core?
So what do you mix with oatmeal to get it to setup?
It's cooked after to set it
The oatmeal/flour/sawdust is a small percentage of the final mixture, not a replacement for the sand 😁
Between when the molten metal is poured in and extracting the casting, the heat chars/burns the organic additive producing voids and reducing the strength of the core, making it crumble more easily.
Ever use dry ice as a CO2 source?
I would like to try that. but dry ice is mighty scarce around here