I appreciate your input, I'm really inspired by the workmanship and the time you take to explain everything .
@derricksell1163 Жыл бұрын
I enjoy this I am a core maker. When I use my air set sand over oil sand when it's warmer outside the san sets up much faster but I can turn down the chemical agenda being dumped into the silica sand. The oil sand I put the cores into a core oven to bake out moisture. It's Art and I love my job
@marcochiavelli93557 ай бұрын
Thank you so much, your video was really helpful!
@markfryer988010 жыл бұрын
Hi Garen, just wanted to say thanks for taking the time to make this series of videos. I am just interested in casting Al from a hobby point of view as well as family history. My grandfather was a tool maker and his brother was a pattern maker so seeing inside these sorts of metal trades shops is of great interest.
@grahamsengineering.253210 жыл бұрын
Very informative, thank you for sharing this as there is not much info around. I'm with a miniature steam club and am making the patterns for the piston valve steam cylinders at the moment so your video is very helpful. I have to put cores in for the steam and exhaust passageways. I will be making Male core patterns then make female wax core boxes from them to make the sand cores. Keep up the good work.
@shreevaastushree4455 Жыл бұрын
Very good information Garen. Appreciated 👍🏻👌🏻
@blue03r65 жыл бұрын
the pattern shop i worked at did an intake for holley a few years ago. we mostly did larger stuff for roots blowers etc for the energy industry. howden roots was one of our customers. so was ariel compressors.
@GarenPhillips11 жыл бұрын
Thank you for watching, getting feed back from people like you drive me to keep doing this. As much as i love doing this you can get burnt out on anything, simple comments can go a long way for motivation. Just remember, if you ever end up making some tooling, send it our way so i can keep our green sand foundry running :). It's the slowest of our production lines right now and they are hurting for work.
@GarenPhillips11 жыл бұрын
There are two kinds of metal shrink though, the first is over all shrink, which depends on your metal and pour temp, we pour around 1400F and see shrinkage around .100-.140 per foot 0.008-0.011%, sounds small but its not. The second is hot spot shrinkage, this falls under entropy and thermodynamics. Hot and cold spots will pull metal away from one another creating 'shrink spots' within the metal, they are visible by the eye and are weak spots. These are controlled by risers/gating.
@dougiearmstrong99925 жыл бұрын
Using a chill should stop hot spots
@ronaldp411 ай бұрын
excellent overview!
@tamerfahmy4353 жыл бұрын
Hi...awesome video . whats the mold made of ?
@GarenPhillips11 жыл бұрын
Electric(induction) furnaces and gas furnaces will affect the impurities in the metal, which affects the quality of the casting. We use only electric furnaces except for our die cast shop. For weight its just experience. We can look at a pattern and guess how much we need. We only pour 2-3 sizes of ladles and after the first pour you know how much to grab out of the furnaces for the rest. If your referring to risers/casting ratio though, it's safe to start at 60/40 ratio.
@vkoutsovoulos94257 ай бұрын
Great work
@MidShipCivic11 жыл бұрын
Thanks for replying I've watched this video and others at least 10 times each. I have couple of questions how do you figure the metal thickness between mold/core and factor how much metal shrinks when cooled? Also can you point me to some good literature on this ?
@melaniewestberg28865 жыл бұрын
From Carl W. - retired - Nice job for the time you had. BTW, "knock out" is also known as "shake out". Porosity should be reduced by gating.
@curvs4me3 жыл бұрын
Those are some beautiful castings. Nice smooth shop corners tight tolerances. It doesn't get much better.
@haydenberndt483511 жыл бұрын
theres a fairly simple piece of mathematics used to determine this value, you can find the metal shrinkage values online, you then factor these values into the measurements of the item your making. for instance, ally has a shrinkage value of 2-3% from melting point, so you make allowances for this amount in the model, an added security measure is the use of risers, which allow the Mold to 'absorb' extra metal, to help reduce shrink spots etc.
@MidShipCivic11 жыл бұрын
Okay I have a couple of questions as I was taking notes, In respect to metal casting how would I research ''induction'' ? How does it relate to pouring metal into a mold? And how do you determine how much weight in liquid metal you need to pour?
@justinsmall27355 жыл бұрын
Great Video!!
@GarenPhillips11 жыл бұрын
I find it very hard to get literature on foundry work and mold making for sand. Its not like most trades, each foundry does things a little bit different. Most of this is due to, there is no right or wrong way to make castings, just better or worse. The only book I've read on foundry work is a book my father has that was written in the 50-60's. Your best bet to learn how to make better castings is to research thermodynamics, hydrodynamics, entropy, convection heat, induction, metal properties.
@arthurstacey27308 жыл бұрын
nice video . now i'd like to see you make something from start to finish with no gaps
@amerlin4u12 жыл бұрын
Excellent video.. Thank you
@045_khushboojain53 жыл бұрын
What components did you use for making the core sand ?
@glasstraxx5 жыл бұрын
great explanation
@gsavogin10 жыл бұрын
Great vid! Thx!
@YarHarFD3 жыл бұрын
What software is that in the corner? It looks so incredibly useful. I'm over here trying to simulate everything manually like a caveman
@GarenPhillips11 жыл бұрын
I am starting to get more free time/money at the shop again so i will be making more videos over this. By the end of my casting series i hope to teach people how to make their own tooling using a 3D printer or home built CNC, which i will make a video of building a CNC also :). There is a lot to know and calculate for tooling so it will take some time to organize all the videos to my liking.
@GarenPhillips11 жыл бұрын
yes it is
@MidShipCivic11 жыл бұрын
THANKS, I believe the cost is worth it for the outcome.
@GarenPhillips11 жыл бұрын
hey i just got back from CastExpo in St Louis, google, "American Foundry Society", they have a bunch of books on foundry stuff, unfortunately they are going to run $50-200 per book.
@MidShipCivic11 жыл бұрын
@Garen Phillips What kind of glue is used for bonding cores together? ( Beginner/Learning) Thanks.
@mannycalavera1217 жыл бұрын
Informative, love it.
@GarenPhillips11 жыл бұрын
Im not sure what its called exactly without looking at the bottle, i know its silicon based. Just google "Sand Core Paste" and you should find something suitable.
@69arildodildo8 жыл бұрын
NICE! I've been struggling a lot with making my model engine. I've heard about "core sand", but the chemical is so difficult to get hand of here "sodium silicate"? - right? OK, I can get it thru the company I work for, but then its the pure Sodium Silicate... During moulding it is something special chemicals added, isn't it? Best, Arild Olsen Norway
@GarenPhillips8 жыл бұрын
Na there is videos on youtube how to do it. just mix it into the sand and expose it to Co2 and it will cure. Or let it sit for a day or two and it will age cure.
@melodiedewz55905 жыл бұрын
Waterglass and co2
@sushilkumarjadhav58154 жыл бұрын
Nice video
@GarenPhillips11 жыл бұрын
2-3% is way to much for aluminum, standard is 1/8th inch per foot(%1.04) but cores and part design heavily effects shrinkage.
@Christophe_L10 жыл бұрын
Holy crap, I was thinking the whole time this was some sort of industrial engine or something. Is it a supercharger???
@dzuarihd99299 жыл бұрын
yes it is.
@tyenh41917 жыл бұрын
Thanks!
@drhqaisi10 жыл бұрын
Very nice
@torifan197613 жыл бұрын
is that solidworks?
@haydenberndt483511 жыл бұрын
thanks for the correction, most of my knowledge is in CNC and manual turning.
@GovindTamke11 жыл бұрын
thanks
@dhirajkumbhar69917 жыл бұрын
NICE MAN ....GOOD WORK WILL YOU EXPLAIN AGAIN WITH CAD MODEL
@MidShipCivic11 жыл бұрын
I surely will send it your way! I rather have more Americans in work then someone outsourcing work to China.
@sunilsaxena52836 жыл бұрын
Hi, I thought core sand was heated to give shape, urs too easy. Can u share what is this type of sand.
@dougiearmstrong99925 жыл бұрын
Its a no bake air setting sand it has a binder and a resin mixed together
@gislemark7913 жыл бұрын
Get a haircut!
@shawnramsay18513 жыл бұрын
what a joke!
@ОнНамДимон-м6б6 жыл бұрын
chinese will do the same much cheaper
@davidmendizabal98927 жыл бұрын
thank you, you saved me, but i´m mexican so ....sorry i guess