FOUNDRY PATTERN MAKING part 5 Steam Engine metal casting tubalcain
This will be a multi part video on foundry pattern making. A wooden pattern is used to make an impression in the sand mold. A silica sand core is inserted to produce the cylinder bore in the casting. A wooden pattern of the cylinder is turned on the Clausing lathe.
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Tags: Blogs, Casting, clausing lathe, engine, Foundry, foundry pattern, making, Metal, part, pattern, sand mold, Steam, tubalcain
20 Responses to “FOUNDRY PATTERN MAKING part 5 Steam Engine metal casting tubalcain”
I just tried the video & it worked for me. I made them all the same way. Try it again tomorrow or on someone else”s computer.
We are having trouble downloading this part for future study. it says NO FLASH VIDEO FOUND? Is that a way to stop people from making a copy of the video? We got the others 1 2 3 4 but this one say like we wrote earlier any way we just wanted the set for future use when making our first set of patterns on our own. Joseph T (fly2000jtb)
Water will evaporate from the sand over time/in use. Remember the texture from when you made it, and restore it by adding a bit of water when it needs it.
I mixed the sand by hand. Isn’t as good/quick as with a muller, but repeatadly pounding the sand with a fairly wide rod, and then “fluffing”/mixing the compacted sand with a thin rod seems to have mixed adequetly
Recomend The Gingery Machine shop form scratch series. He shows how to build machine tools. Mr Pete here shows how to use them!
Don’t know if it makes that much difference! Expect the recipy could be converted if differences in density where known. I used weight/mass, and it’s the ratios which are important. Measured 20Kg sand in to a mixing bucket with a handle using a big spring balance (kind for checking you aren’t over luggage allowance on planes) Base unit therefore 200grams. Kitchen scales for 800g of clay and then 800g of water. Mixed the clay in to the sand while it was dry, then added water slowly while mixing
What would a unit be? Like one cup sand 4 cups bentonite etc…. Thanks for the info too Joseph T (fly2000jtb)
Thanks, as always. Some of the most informative videos of their kind. Am really looking forward to getting into some casting. Cheers!
I have those Fillet Shapers from Freeman. Good stuff. I mostly use them when I am shaping clay for mold making. I always enjoy watching your videos. Patiently awaiting part 6
-Hank
Annother great video
Sodium Silicate (aka water glass) can be used to set cores.
You could use Olivine sand for making green sand, but clean silica sand is OK unless you’re casting at very high temperatures . I make/use a green sand with a mix of 100units weight dry silica sand + 4 units weight Bentonite clay + 4 units weight water. 4 units weight sea coal/graphic etc is supposed to help, but I’ve not added it
Obtained my sand from a hardware shop, it’s used to fill gaps between block paving.
Please make a video of the castings from these patterns, maybe even a video of the pour. I’d love to see the final product after following all the pattern videos. Excellent work as always.
5 stars once again!!!
Thx for posting the videos, its very very informativ.
Andy
Excellent video! Thank you for sharing this. Are you going to show imprinting it into the sand and the pouring of the aluminum?
Buzz
great video once again thanks so much sir
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Very Very coooooolllll!! Will you post the places to get the sand chemicals like you did the other suppliers? I can not find any place around here that sells it. I mean the cores sand stablizer if that is what it is called. You said it was water based not oil. I would love to know where to get it, as well as the sand. Can somebody sift regular sand to get the fine casting sand or must you use the green sand like at the iron foundry I use to work at? I watched these all Joseph T (fly2000jtb)
A very nice and useful series of videos. Thanks !
Paul
Thank you so much, im loving these tutorials and hungry for more
Yup me too. I can’t wait to see the next one!
I hope that you will continue this series beyond pattern making. I’ve watched your other videos, but it would be great to see the entire process of the construction of this engine from pattern through casting and machining to finished model.
Yep, I love these videos too. My heart gives a little leap every time I log in and see a new one on my list.
Great stuff, thanks.
Brendan
Alright Another Video! Please keep them coming. They are like Frosted Flakes….Theyyyyyyy’er Great!