 911/914-6 engine content....Al fan shrouds manufacture |
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| raynekat |
 Jan 8 2017, 01:47 AM
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#1
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Advanced Member  Group: Members Posts: 2,158 Joined: 30-December 14 From: Coeur d'Alene, Idaho Member No.: 18,263 Region Association: Pacific Northwest 
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Saw this on Youtube today.
Pretty cool. My German's pretty rusty tho.... https://www.youtube.com/watch?v=JMyjV59GITQ |
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| bretth |
Jan 8 2017, 08:23 AM
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#2
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Senior Member Group: Members Posts: 899 Joined: 23-June 15 From: Central TX Member No.: 18,882 Region Association: Southwest Region |
That's cool. I always wanted to try and sand cast something, relatively inexpensive if machining isn't needed. I wonder what the ping pong balls near the end processes are for.
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| 914Sixer |
Jan 8 2017, 08:59 AM
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#3
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914 Guru Group: Members Posts: 8,878 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Lots of steps to make that part. Good information on how the sand casting process takes place and the machining required. Imagine doing the work with out CNC.
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| mb911 |
Jan 8 2017, 09:06 AM
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#4
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914 Guru Group: Members Posts: 6,841 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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I am actually looking at making these out of magnesium locally..
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| tscrihfield |
Jan 8 2017, 09:08 AM
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#5
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Drive Fast and Take Chances Group: Members Posts: 643 Joined: 8-September 10 From: Amelia Ohio Member No.: 12,156 Region Association: None
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Very cool, thanks for the share!
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| BillC |
Jan 8 2017, 11:27 AM
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#6
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Senior Member Group: Members Posts: 536 Joined: 24-April 15 From: Silver Spring, MD Member No.: 18,667 Region Association: MidAtlantic Region
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QUOTE(bretth @ Jan 8 2017, 09:23 AM)  I wonder what the ping pong balls near the end processes are for. They are used to reduce evaporation from the tank, by reducing the exposed surface area of the fluid. |
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| porschetub |
Jan 8 2017, 12:15 PM
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#7
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Amazing foundry so much automation,interesting to watch,not like the one I worked in many years okay (IMG:style_emoticons/default/sad.gif) .
The finished product looks heavier in construction than the magnesium one, wonder what to finished weight is ? |
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| IronHillRestorations |
Jan 8 2017, 12:53 PM
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#8
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I. I. R. C. Group: Members Posts: 6,717 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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I'll bet the fan housing was a Mahle product, and pressure cast
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| raynekat |
Jan 11 2017, 08:46 PM
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#9
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Advanced Member Group: Members Posts: 2,158 Joined: 30-December 14 From: Coeur d'Alene, Idaho Member No.: 18,263 Region Association: Pacific Northwest
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Mittelmotor's ad on Ebay.de (Germany)....
http://www.ebay.de/itm/Porsche-911-RSR-ST-...b8AAOSw44BYcQBw |
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| jd74914 |
Jan 12 2017, 07:27 AM
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#10
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
QUOTE(porschetub @ Jan 8 2017, 01:15 PM) Amazing foundry so much automation,interesting to watch,not like the one I worked in many years okay (IMG:style_emoticons/default/sad.gif) . That's what I was thinking...much cleaner than any foundry I've been in too! Especially the non-ferrous metal foundries. Maybe I missed it, but I was surprised not to see a heat treating step. Wonder what alloy they are made from? |
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| Bartlett 914 |
Jan 12 2017, 08:42 AM
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#11
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Advanced Member Group: Members Posts: 2,215 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
I think that was a nice video. I worked at a company that cast Cast iron valve guides and Die cast aluminum pistons. This fan was done in a "lost foam" process. The sand formed the outer shape of the fan housing. The white material that got inserted was foam that evaporates when the heated aluminum hit it. The white foam is the fan housing. I was in a forum where guys were making jewelry pin from bugs. "Lost bugs". Think about casting a dragon fly in silver this way.
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