Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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John Smith
 
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Default aluminum surface smoothness comparison?

Does anyone know a website that shows photographs of turned aluminum along
with specifications?

I have a requirement for a cylindrical part but I don't know how to call-out
surface smoothness. I'm only interested in a mechanical treatment. I want a
"shiny" finish but not a diamond-turned mirror finish. Is "shiny" an
appropriate call-out to a machinist?




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Anthony
 
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"John Smith" wrote in
.net:

Does anyone know a website that shows photographs of turned aluminum
along with specifications?

I have a requirement for a cylindrical part but I don't know how to
call-out surface smoothness. I'm only interested in a mechanical
treatment. I want a "shiny" finish but not a diamond-turned mirror
finish. Is "shiny" an appropriate call-out to a machinist?






No
You need to call out a max Ra or Rz and a feed. an Ra of .8 max should be
sufficient. (Metric)



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Anthony

You can't 'idiot proof' anything....every time you try, they just make
better idiots.

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ff
 
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John Smith wrote:

Does anyone know a website that shows photographs of turned aluminum along
with specifications?

I have a requirement for a cylindrical part but I don't know how to call-out
surface smoothness. I'm only interested in a mechanical treatment. I want a
"shiny" finish but not a diamond-turned mirror finish. Is "shiny" an
appropriate call-out to a machinist?






Here a site that gives some info:

http://www.jjjtrain.com/vms/engineer...ce_finish.html

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jd
 
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Default

Thanks! That's a great site!


"ff" wrote in message
. ..
John Smith wrote:

Does anyone know a website that shows photographs of turned aluminum

along
with specifications?

I have a requirement for a cylindrical part but I don't know how to

call-out
surface smoothness. I'm only interested in a mechanical treatment. I want

a
"shiny" finish but not a diamond-turned mirror finish. Is "shiny" an
appropriate call-out to a machinist?






Here a site that gives some info:

http://www.jjjtrain.com/vms/engineer...ce_finish.html



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