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Associate

Join Date: Apr 2011
Posts: 38

Sand Blasting

10/25/2015 11:16 PM

Hello all Guru's,

I have a piece of steel part that need to cover the rough grinding surface. At present I am using a glass sand blasting machine to even out the surface but there are high chances the edges of the shape accidently being rounded off. Is there any poossibility of a process that you can suggest?

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Guru

Join Date: Oct 2008
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#1

Re: Sand blasting

10/25/2015 11:41 PM

We have a semantics problem here.

"cover the rough grinding surface" ?

If you want to smooth the rough grinding surface, you will have to remove some material. Maybe a sanding block with progressively finer grit paper will work.

Walnut shell blasting may polish the surface but it will leave any rough grinding marks in place.

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#2

Re: Sand blasting

10/26/2015 4:17 AM

A typ of machine called a "wheelabrator" (possible spelling variation) may do what you want.

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#3

Re: Sand blasting

10/26/2015 7:54 AM

don't know what tolerance you have as in "Rounding off"....

But if your finishing guy has any experience in the bead blasting this would help.

My experience here is we had taped off adges as well as butting a sacrifice material against it. with varying effects.

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#4

Re: Sand blasting

10/26/2015 9:05 AM

Walnut shells ground up.

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#5

Re: Sand blasting

10/26/2015 10:19 AM

Dry Ice blasting

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Associate

Join Date: Jan 2015
Posts: 39
#6

Re: Sand Blasting

11/25/2015 3:10 PM

masking the critical edges is what I would do. Another suggested tape. Good but if the areas to be protected are too fine or otherwise unsuitable for tape, paint with a soft adherant material such as silicone or wax.

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