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Posted By: Rich Masking Methods - 07/15/19 03:26 PM
Right now using pvc pipe with multiple layers of duct tape to plug holes/areas not to be shot. Is there a better method. As this method wears out and the risk of the plug moving or blowing out is high.

Any ideas would be appreciated.
Posted By: Walter Re: Masking Methods - 07/15/19 03:34 PM
Ultimately the best way to prevent shot peening in unwanted areas is to machine these areas after peening.

However, I realize that that is not something that can always be done or maybe out of your control.

I would suggest not using PVC, it breaks down rather quickly. Try UHMW. For threaded holes us stainless steel set screws.

I might be able to help more if I had more information, such as peening media type, size and hardness and the required intensity.
Posted By: Rich Re: Masking Methods - 07/15/19 06:43 PM
GB35, SS20 cut wire & SS47 cut wire

Intensity ranges from 6A-14a depending on the area being shot.

threads 9-12 Inner bore section 9-14 w/some differences.
Posted By: Jack Champaigne Re: Masking Methods - 07/16/19 03:40 PM
Check our buyer's guide for masking:

https://www.shotpeener.com/buyersguide/product_detail.php?prod_id=104
Posted By: Rich Re: Masking Methods - 07/16/19 06:12 PM
Thanks Walter and Jack. This has been very helpful.
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