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- Опубликовано: 14 окт 2024
- Hello my Friends, I make a correction here after last week's video and from there I ram up a hit and miss engine crank cover that had to be done twice. At the end of this I share some of the machinist cubes that turned out along with show a near miss with danger as a crucible delaminates
#casting #foundry #windyhillfoundry #madeinmississippi #molds #castiron #hittandmiss #crucible
Ahhhhhh! The Pub. Great place to enjoy a meal!
I didn't know you were in Florida. I can't wait to move back down . I came up to PA to help take care of my sick mother and now it is time to come back down. Love your vids.. I miss Florida Flywheelers..
Great to see your post. 👍👍
WOW - what a challenge getting the job done. A LOT of hard work. Very impressed.
This is a test! Haven’t been able to make a comment from my iPhone, some sort of error code 403 or 2 kept popping up! Anyway thankful to be your friend!
Steve M
Thanks Clark and be careful my friend 👍
Shoe🇺🇸
You can use a magnet with an eyebolt to get the pattern out.
I think that crucible is near the end of its life. Thanks for the video keep on keeping on.
thank you for sharing your time
I wonder if you could use some of the gadgets I've seen used to pull/pop dents in cars without boring holes. If you could put suction cups and make bridges across the flasks to pull out the forms... They have a lot of gadgets that just might work without disturbing the mold.
My sense is that if it doesn't release basically on its own, then it's probably going to pull the molding sand with it. The mold has to 'naturally' break of any stiction, and not forced. That's why he taps on it - to vibrate it to make an air gap around the form.
This is a challenging one. I don't kow why you did not use the parting powder for the second half.
Did you make it over to Texas to pick up that foundry stuff?
Yikes, that crucible!
That's a lot of work to get it right. So many things to go wrong. I've never done anything like this myself, so your videos are very interesting. Thanks.
I've always worried that one of my crucibles was going to fail because they are getting old, like me. I don't like the look of yours! Id have been afraid to use it.
Scott or Sott? I noticed that because I’m a Scott too. 😜
If you offset the alignment pins on the mold halves it would be impossible to put them together backwards. That will prevent Murphy’s Law.
That, and/or go to different sized molding pins. I plan to use different sized molding pins for my flasks, as I *will* screw things up otherwise!
I had that happen to me on a new #6 crucible that I was just tempering. I slowly brought up the temp about halfway then let it cool slowly and large cakes flaked off of the outside when it cooled. Ya get what you pay for, or not.
Thought that said WEF 11 for a second
Just saying but the content on a channel like that would probably be concerning to like ...
People, in general.
But it's okay, this is about hot metal not that evil hot mess
Phew!
Subb"d and 👍'd
@22:11 Would JB Weld fix that?? ;p
Would a heavy layer of paste wax on the pattern help make it come out easier?
The sand would embed in and stick to the wax. The idea is sound, but you need something harder than wax - many different paints and finishes qualify, with with pros and cons.
I’ve tried paste wax on top of finishes like lacquer and shellac. It *seemed* to help a little bit, but I’m thinking dusting the pattern with finely powdered graphite might be somewhat better for “ease of pull.”
Important matters are “hard, dead-smooth surfaces with a decent amount of draft; well-milled sand, with the right amount of moisture (I tend to want to put too much water in! So much so, that I’ve tried using a meter so as to remove that *flaky* variable - as in I do *not* trust my “feel” in this matter at all.).
Oh, and being consistent, even when your body is telling you “enough.” Foundry is a very detail-oriented business, even if you’re doing it as a (moderately serious) hobbyist - as in you want somewhat consistent results, and as few “wasters” as possible.
Very fortunate that crucible didn't totally give up. Another advantage of going to direct tap would be the elimination of crucible handling and the risks involved.
Imagine trying to achieve a casting as complicated as the backwards vise cart parts on purpose...
just take them over to the band saw and cut down the parting line. 🤔😱😁
What about lost foam casting for some of the parts?
you say that the normal make of flask's is too hevey ? mite you think of caresting some out of alunum as as you call it over there in the us bound to be lighter by a few pounds ?
Is there such a thing as forming/ramming up in, say, 2 quarters and a half when the draft angle isn't good (or 4 quarters)?
Such split in crucible happened to me when it was heated wet. Moisture is most likely the reason.
Ahhhhhh! The Pub. Great place to enjoy a meal!