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 Post subject: Porsche Rotors
PostPosted: Fri Mar 18, 2005 5:11 pm 
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Okay
Most people have heard that Porsche rotors have cast in holes instead of the cross drilling that you see on most typical rotors after it is cast.

Well can any one prove that the holes are cast in and not drilled, A few pictures of the mold or the rotor in different stages would suffice.

Stef you have any inside info or is it proprietary and guarded better than a virgins virtue.

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PostPosted: Fri Mar 18, 2005 5:30 pm 
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Somebody say virgin's virtue? :shock:

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PostPosted: Fri Mar 18, 2005 6:16 pm 
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Couldn't you tell by looking at the inside of the holes? I would imagine you could see traces of the holes being drilled if they were ...?

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PostPosted: Fri Mar 18, 2005 6:37 pm 
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Garry
That was inconclusive when I looked at it .

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PostPosted: Sat Mar 19, 2005 4:41 pm 
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The holes are cast in the disks. Some fancy casting, but if you look close you will see fine irregularities in the holes (unlike the smooth drilled holes), but you have to look closely.
By casting the holes you get the cast-iron grain to flow around the holes and reduce cracking. They will still crack slightly, but not nearly as bad as drilled holes.

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 Post subject:
PostPosted: Sat Mar 19, 2005 6:27 pm 
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Got any pictures of the casting process?

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PostPosted: Sat Mar 19, 2005 8:38 pm 
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Last time I looked at a casting process, all I saw was a ladle pouring molten metal down a hole, flames everywhere.
What do you want to see? How the core inserts assemble in the mould, the finished product or just proof that the holes are cast in the disk?

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 Post subject:
PostPosted: Sat Mar 19, 2005 9:23 pm 
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Basically looking for a picture that shows a rotor that is unmachined with the cast holes in it.
I've got a pict of the brakemold here. But for some people that is not good enough. I just want to be able to show with out a doubt that the holes are cast.

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 Post subject:
PostPosted: Sat Mar 19, 2005 9:32 pm 
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I will mail you some info from work on Monday. (how much is the bet with the "other" guy?)

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PostPosted: Sat Mar 19, 2005 9:50 pm 
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2slow wrote:
Last time I looked at a casting process, all I saw was a ladle pouring molten metal down a hole, flames everywhere.
What do you want to see? How the core inserts assemble in the mould, the finished product or just proof that the holes are cast in the disk?


Dude, I serioulsy need a tour of that place!

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 Post subject:
PostPosted: Sat Mar 19, 2005 9:54 pm 
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That would be great.
Yeah there is some guy on the corner carvers board , that says show him the proof that their cast . For now I can't prove that the rotors are or aren't . I do know that there made for Porsche by SHW in germany.

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 Post subject:
PostPosted: Sat Mar 19, 2005 9:56 pm 
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If you have a bath and promise to wear a clean shirt then I can organize a tour of the production facility.

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 Post subject:
PostPosted: Sat Mar 19, 2005 9:58 pm 
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That sounds good , I am definitely down for that.

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 Post subject:
PostPosted: Sat Mar 19, 2005 10:07 pm 
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Is that a general invitation? Sounds cool! Been a while since I last was inside a Porsche place ... ;) (yes, I have been at one once before! still have the visitor sticker somewhere ...)

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 Post subject:
PostPosted: Sat Mar 19, 2005 11:10 pm 
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Oh yeah, can the inlaws attend?


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 Post subject:
PostPosted: Sun Mar 20, 2005 12:20 am 
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2slow wrote:
If you have a bath and promise to wear a clean shirt then I can organize a tour of the production facility.


I'm sooooooo there!

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 Post subject:
PostPosted: Sun Mar 20, 2005 7:26 pm 
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im down.

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 Post subject:
PostPosted: Sun Mar 20, 2005 7:30 pm 
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When you think you can arrange this?

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 Post subject:
PostPosted: Sun Mar 20, 2005 8:31 pm 
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Hae to make some phonecalls first. Tours can only be done during the week, start at 10h00 and done by 12h00. How many still interested?

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 Post subject:
PostPosted: Sun Mar 20, 2005 9:05 pm 
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I'll take leave if I have to.


Where you at Silas?

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