MetalworkingFun Forum › Machining › Welding & Casting v
Mill Engine Cylinder Casting

Thread Modes
Mill Engine Cylinder Casting
doubleboost Offline
Super Moderator
******
Posts: 1,459
Threads: 159
Joined: Feb 2012
Location: Northern England
#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
http://www.youtube.com/user/doubleboost
Reply
Thanks given by:
DaveH Offline
Child of the 60's
******
Posts: 4,513
Threads: 139
Joined: Feb 2012
Location: Kempton Park. South Africa
#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
Reply
Thanks given by:
doubleboost Offline
Super Moderator
******
Posts: 1,459
Threads: 159
Joined: Feb 2012
Location: Northern England
#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
http://www.youtube.com/user/doubleboost
Reply
Thanks given by:
DaveH Offline
Child of the 60's
******
Posts: 4,513
Threads: 139
Joined: Feb 2012
Location: Kempton Park. South Africa
#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
DaveH
Reply
Thanks given by:
Mayhem Offline
purveyor of mischief
******
Posts: 4,683
Threads: 93
Joined: Feb 2012
Location: Perth, Australia
#5
08-12-2012, 11:45 PM
Excellent job as always John. Looking forward to the video
Hunting American dentists since 2015.
Reply
Thanks given by:
krv3000 Offline
Senior
*****
Posts: 1,520
Threads: 157
Joined: Feb 2012
Location: uk
#6
08-13-2012, 01:48 AM
well dun john brill bit of work
krv3000, proud to be a member of MetalworkingFun Forum since Feb 2012.
Reply
Thanks given by:
Highpower Offline
JAFO
******
Posts: 4,460
Threads: 184
Joined: Feb 2012
Location: Missouri, USA
#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

Smiley-signs107
Willie
Reply
Thanks given by:
TomG Offline
Alt. Whipping Boy
*******
Posts: 3,798
Threads: 184
Joined: Jun 2012
Location: Farmington Hills, Michigan
#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
[Image: TomsTechLogo-Profile.png]
Reply
Thanks given by:
doubleboost Offline
Super Moderator
******
Posts: 1,459
Threads: 159
Joined: Feb 2012
Location: Northern England
#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
http://www.youtube.com/user/doubleboost
Reply
Thanks given by:
Highpower Offline
JAFO
******
Posts: 4,460
Threads: 184
Joined: Feb 2012
Location: Missouri, USA
#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
Reply
Thanks given by:




Users browsing this thread: 7 Guest(s)