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Posted by Peter Neill on March 6, 2008, 7:39 am
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On Thu, 06 Mar 2008 02:47:09 +0000, Peter Fairbrother
>John Stevenson wrote:
>> On Wed, 05 Mar 2008 11:20:53 +0000, Peter Fairbrother
>>
>>> Does anyone know where to but diamond sandpaper? Sheets, not disks. I'm
>>> not looking for a lot.
>>>
>>> Thanks
>>>
>>> Peter Fairbrother
>>
>> Not sandpaper but what about the diamond foam blocks from Arc ?
>>
>> http://www.arceurotrade.co.uk/Catalogue/Diamond-Tools/Diamond-Stones
>>
>> Towards the bottom of the page.
>> I presume you want something that's flexible ?
>
>I want to polish some turbine blades in a very small turbine wheel
>machined form solid - the blades are about 6 mm long, 4mm deep, and 2 mm
>apart.
>
>I need something thin, in order to get into the 2 mm gaps, flexible
>because the blades are curved, and hard because the wheel is made from
>Inconel.
>
>That's why I thought diamond sandpaper - cut it into strips, fasten the
>ends into bands, and drive with a dremel or mini-belt-sander or something.
>
>Though finishing the concave surface is going to be ... interesting! ...
>
>-- Peter Fairbrother
Polish first with normal wet & dry, then get a small syringe of
diamond paste.
Pop in to the local Costa coffee or Starbucks and grab a handful of
their thin wooden coffee stirrer sticks.
Use sticks with diamond paste to polish.
Peter
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