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Mill Engine Cylinder Casting

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Mill Engine Cylinder Casting
doubleboost Offline
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#1
08-12-2012, 02:49 PM (This post was last modified: 08-12-2012, 02:51 PM by doubleboost.)
Hi
Lads
I made use of the sand cores i made last week and cast my cylinder
[Image: IMG_4071.jpg]
This picture shows the sand core in the mould
[Image: IMG_4076.jpg]
The small round bit is where the metal is poured in (sprue) the rectangulsr bit is the riser
This feeds the casting as it cools
[Image: IMG_4077.jpg]

[Image: IMG_4080.jpg]

[Image: IMG_4082.jpg]
This shows where the riser has been cut off (nice clean solid metal)
This is always a welcome sight
[Image: IMG_4085.jpg]
Very happy with it
[Image: IMG_4061.jpg]
I cast this yesterday with poor results
[Image: IMG_4062.jpg]
Nasty void in the riser (scrap casting)
At least you can always cut it up and re melt it

I could not resist machining at least one face
Good clean metal
[Image: IMG_4088.jpg]
[Image: IMG_4091.jpg]
[Image: IMG_4092.jpg]
John
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DaveH Offline
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#2
08-12-2012, 03:48 PM
John,
Excellent job mate Smiley-signs107 Worthy

I'm glad you explained the difference between the sprue and the riser Thumbsup 'cause I'd be temped to pour the metal in the "big hole" SlapheadSlapheadSlaphead

Any idea why it looks "silvery" on the outside?

Great bit of casting, don't suppose you did a video Smiley-dancenana
Smiley-eatdrink004
DaveH
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doubleboost Offline
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#3
08-12-2012, 03:51 PM
(08-12-2012, 03:48 PM)DaveH Wrote: John,
Excellent job mate Smiley-signs107 Worthy

I'm glad you explained the difference between the sprue and the riser Thumbsup 'cause I'd be temped to pour the metal in the "big hole" SlapheadSlapheadSlaphead

Any idea why it looks "silvery" on the outside?

Great bit of casting, don't suppose you did a video Smiley-dancenana
Smiley-eatdrink004
DaveH
Buisy with the video now
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DaveH Offline
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#4
08-12-2012, 04:10 PM
(08-12-2012, 03:51 PM)doubleboost Wrote: Buisy with the video now
Ooo Smiley-dancenana Smiley-dancenana Smiley-dancenana
Smiley-eatdrink004
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Mayhem Offline
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#5
08-12-2012, 11:45 PM
Excellent job as always John. Looking forward to the video
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krv3000 Offline
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#6
08-13-2012, 01:48 AM
well dun john brill bit of work
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Highpower Offline
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#7
08-13-2012, 07:16 AM
Incredible. Not something you find going on in most back yards these days. Very impressive John. Smiley-eatdrink004

What's next? Mining your own ore as well? Don't start slacking now! Big Grin Big Grin Big Grin

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TomG Offline
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#8
08-13-2012, 07:19 AM
Nice work John. It's been a long time since I've had the fun of machining a casting.

I assume by the blackening around the casting, that you use an oil tempered sand? Is it your own recipe or do you buy it already mulled. And what about flux? I know chlorine type degassers are used for aluminum, but do you also use some sort of flux for the bronze?

Tom
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doubleboost Offline
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#9
08-13-2012, 10:54 AM
(08-13-2012, 07:16 AM)Highpower Wrote: Incredible. Not something you find going on in most back yards these days. Very impressive John. Smiley-eatdrink004

What's next? Mining your own ore as well? Don't start slacking now! Big Grin Big Grin Big Grin

Smiley-signs107

http://madmodder.net/index.php/topic,316...l#msg33953
John
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Highpower Offline
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#10
08-13-2012, 03:59 PM
(08-13-2012, 10:54 AM)doubleboost Wrote: http://madmodder.net/index.php/topic,316...l#msg33953
John

Rotfl Rotfl Rotfl

I should have known... Smiley-eatdrink004
Willie
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