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WPC treatment


G
obsessed with the turds of others
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Galant VR-4 org Post #: 738522 posted 12/24/08 01:23 PM     Remind Me!  Send Private Message   Edit Post      
So i was reading that this is better than shot peening. Supposedly it's a japanese process used in high levels of racing like jgtc. click

click



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dmj
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Galant VR-4 org Post #: 738559 posted 12/24/08 02:52 PM     Remind Me!  Send Private Message   Edit Post      
Must be very expensive,I don't think we need it for our cars though.I like to follow the keep it simple principle.

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Dialcaliper
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Galant VR-4 org Post #: 738570 posted 12/24/08 03:13 PM     Remind Me!  Send Private Message   Edit Post      
It looks like it's just shot peening with very fine powder media instead of beads, so that it leaves a smoother surface finish.

Unless they've come up with some very special blasting media for it, it seems overpriced (it might be a bit more effective than normal shot peening, but an actual comparison test would be useful).

The result is probably something between shot peening and ISF micropolishing, although it seems that it could be a cheaper alternative than performing both on a particular part.



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Edited by Dialcaliper (12/24/08 03:14 PM)

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Terry Posten
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Galant VR-4 org Post #: 738573 posted 12/24/08 03:20 PM     Remind Me!  Send Private Message   Edit Post      
click

I did this on my 2.3 crank after I had it cryro-treated.

The crank was so slippery I could barely hold on to it and it was dry. I used it for about 1500 miles and when it was tore down to rebiuld it right, it was still perfect and the coating was still there.

Can't say if it really helps but it doesn't seem to hurt either and it is very resonable.

The crank was $175 for cryro and coating. That price also included treating the bearings.

I would love to do it to the turbo and may if it ever needs to be rebiult.



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ktmrider
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Galant VR-4 org Post #: 738691 posted 12/24/08 10:35 PM     Remind Me!  Send Private Message   Edit Post      
Quoting Dialcaliper:

It looks like it's just shot peening with very fine powder media instead of beads, so that it leaves a smoother surface finish.

Unless they've come up with some very special blasting media for it, it seems overpriced (it might be a bit more effective than normal shot peening, but an actual comparison test would be useful).

The result is probably something between shot peening and ISF micropolishing, although it seems that it could be a cheaper alternative than performing both on a particular part.


There is a great article in the recent ( and maybe last ) Turbo magazine on WPC and comparisons to conventional coating/hardening processes.
I provides BOTH hardening and "slippery" treating of the metal parts in one process.
Rumor has it that there is some type of teflon or moly component in the media but like most Japanese secrets it's not discussed.
Either way it appears the hype is for real....



Mike O.
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Edited by ktmrider (12/24/08 10:35 PM)

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curtis Galant VR4.org Moderator
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Galant VR-4 org Post #: 738716 posted 12/25/08 12:50 AM     Remind Me!  Send Private Message   Edit Post      
There's other means as well G ..one is ion beam surface treatment (iBEST) where a super large power generation unit builds and stores power until a certain power is stored and then blasts the part. What is left is a part that the dims haven't physically changed but the outside of the part is now perfectly polished and the first full layers of atoms are perfectly arranged the same as cryotreating. Due to the thermal breakdown and anneling during ambient periods between blasts. This eliminates stress risers, seals fractures in the metal, lubricity goes up as well as fatique resistance and wear times. Its part of sandia national labs but the only people I know that do it is QM technologies...I plan on calling them the next time I go into a transmission.



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1gcrazy
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Galant VR-4 org Post #: 747019 posted 01/18/09 06:21 PM     Remind Me!  Send Private Message   Edit Post   
I too read the WPC/Shot peening article in Turbo magazine. I then watched that movie and i'm not really all that impressed. I think I just dont like the salesman on the video. He sounds like a car salesman... jerk.
I bet it does help but I just dont think I believe the whole "microscopic holes" retaining oil... I'd have to see some REAL pictures of the proof. Get a microscopic CAMERA...

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