Metal Casting Tip: Improving Surface Finish of Metal Castings with a Tapered Sprue Former

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In this video, I talk about one way I hope to improve the surface finish of my metal castings. I plan to do this through the use of a tapered sprue former. This will allow me to make a narrow, tapered sprue to pour the molten metal into the sand casting mold, controlling the flow of metal and reducing turbulence. This is one quick tip to help in the metal casting process and hopefully will make my aluminum and bronze castings better. There is no melting metal in this particular video, just me blabbering on and on. I also nearly cut myself with a sharpened trowel, so there's that.
SWDweeb's channel: / @swdweeb
Olfoundryman's channel: / @olfoundryman8418
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Music: "Quirky Dog" by Kevin MacLeod. incompetech.com/
#metalcasting

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Опубликовано:

12 апр 2018

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Комментарии : 45

@bradenlumley2700 6 лет назад

"Most of what I do is because it is free"😂😂😂 I can relate so much.

@DerrickPerrin 11 месяцев назад

Nice. Thanks for the video.

@BEMetalMelting Год назад

Great advice thank you!

@MrEh5 Год назад

Old foundryman is fantastic. Pouring basin and tapered sprue works well. Made my castings much better.

@mrgreenswelding2853 6 лет назад

Great rambling information! Lol!! I needed to know this stuff, i havent casted anything yet but for the future, soon i hope.

@Lucky_2847 6 лет назад

I have to say. I truly enjoy your channel. I was turned to you by Black Beard's 100 k shout out. You have become my fav youtube channel. I'm a fabricator by trade. Your humor and original 80's commercial approach is inviting. And man I laugh so much watching you while enjoying the content at the same time. I wanted to let you know you have made some very bad days good and I can't thank you enough. I'm glad I found you and I hope you're here to stay. You will have 1 million subs soon so at least I can say I was here near the beginning. If your at a million anyway. Haha. Keep up the great work Paul.

@jagboy69 6 лет назад

I can see slowing down the flow when pouring into sand to keep from blowing the sand into the casting. I run ceramic shell. My sprues are fat and straight with a big pouring cup providing all the head pressure I'll ever need. So far, no surface finish issues that aren't blamed on pouring too hot. A good thermocouple helps prevent that.

@tobhomott 6 лет назад

That skinny tapered sprue pin will make it really easy to keep your sprues choked throughout your pours; looking forward to seeing some sweet castings!

@Gryphon2026 6 лет назад

Last time I was this early... well I was never really this early, but it's good to see another great video from Paulsgarage!

@gorgoncorvenus4529 6 лет назад

Thanks, nice tip

@nowayjerk8064 6 лет назад

he showed the tip? oh my ill have to re watch

@watahyahknow 6 лет назад

thinking about it , and it does make sence to pour it slowly but to prevent any vortexes or stuff like that and fast enough so it doesnt solidify before the pour is finished it might actually be good to lay the to cast part at a slight upward angle (maibe put the mould on a slight raise (block of wood) oposite the pouring funnel ) that will have the funnel at an angle so the metal rolling along one side of it preventing the metal from falling down intoo the hole and mixing with the dross like you mentioned setting it at an angle has the metal come in at the lowest point and flowing toward the airing hole untill thats filled to the top i think if you do that right the little bit of dross stuff youre talking about that gets created during the pour intoo the mould might stay in front of the flow of metal being poured in floating on top and works itself up and out of the vent at the other end might be worth a try , i dont know enough about metal pouring to know if it will work

@agustinruiz7129 5 лет назад

Great video, I have a foundry myself and I have a question, porcelain filters help retaining impurities, but it helps to remove or pop air bubbles at the moment of pouring the aluminum?? I will try the cone shape, let see what happens.

@grandadz_forge 6 лет назад

I'm pretty sure you can also kill vampires with that.

@MaskinJunior 3 года назад

The key is to keep the sprue filled during the entire casting. One trick done by industry is to have a pouring basin on top, and a plug in the sprue, so when you have some melt in the basin, you remove the plug so the air in the sprue is pressed in front of the melt.

@swaroopcool22 3 года назад

i think the surface finish also depends on the investment powder you use. (I know you use delft clay). I am also an amateur caster. Earlier I used to use simple construction plaster for my lost wax process. Recently I made the switch to jewelry grade investment powder. And boom.....smooth surface finish. I think it has to do with the particle size. May be try sifting your delft clay and see if it improves???

@robertreinhard8024 6 лет назад

Hey Paul where did you get rouen piece of rail road track?

@JulianMakes 5 лет назад

oooh conincidentally i've only just subbed to SWDWEEB and saw his tapered sprue former thingy on his bell casting video. Wanting one immediatley! i went to google it's dimensions and saw this video! so he made yours? very cool, i'll watch his vid after yours and try to make my own. cheers o/

@TrashyEgg 6 лет назад

I just saw that u uploaded and almost broke my chair

@PaulsGarage 6 лет назад

Uh oh thats furniture abuse!

@CirroJeremy 6 лет назад

Are you going to get snow this weekend?

@bearsharkp3901 6 лет назад

What about a small Bull pin

@firebird8600 6 лет назад

Aluminum is harder than your skull. Good tip!

@MaskinJunior 3 года назад

Apparently mr Bob Puhakka was able to cast aluminum stronger than duplex stainless steel.

@73superglide62 6 лет назад

I have hard head the point was ,um um venting

@duuuuuudddeee 6 лет назад

DEE-EEEE-ECENT

@johnnyreb4200304 6 лет назад

Yayayayayaya its pauls garage lol

@PaulsGarage 6 лет назад

👍👍

@unclebobsbees4899 5 лет назад

My favorite video from olfoundryman is: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-O_YW9UKbkok.html He goes through all the pieces req'd for phenomenal castings.

@WaltSorensen 6 лет назад

Congrats, now you no longer have sprue envy... Now you just need one of those fancy cast rammers ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-DaAgE5a7NIs.html and consider a fancy pair of tongs like this set ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wtDHaXcS6Tg.html

@themakermechanic 6 лет назад

I for one hate it when my metal gets turned up

@markmagill625 6 лет назад

Show us how it is used

@PaulsGarage 6 лет назад

In a future video i will probably.

@swdweeb 6 лет назад

Here is the video Paul mentioned. I use it there and in the last three or four casting videos I've done. Not that I'm trying to poach views from Paul... there's probably some RU-vidy kinda term for that... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Q5PEllD4MrI.html

@supasplash 5 лет назад

@@PaulsGarage if controlling the flow of the liquid metal is so important why not try using the Sprue former on an angle to further slow down the liquid? Why does nobody else do this?

@prowork7127 6 лет назад

3rd....... Why does people even do this....... really weird to be honest

@PaulsGarage 6 лет назад

Dont know either. You were 4th though :P

@whiskeyelement8802 6 лет назад

2nd

@PaulsGarage 6 лет назад

Can confirm second

@infinityfoundry8964 6 лет назад

why didn't you actually just cast that...?

@nowayjerk8064 6 лет назад

to close!!!!!!!!!!!!!!!!!!!!!!!to short!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! whers the wife????????????????????????????????????? like we come to see you? thanks for sharing!!