Re: Aluminium grade

Hi Pete,

this is kinda-sorta near the edges of the topic as per Tim, but I
think discussing the metals our stuff is made of is pretty close to
topic.

that said, and to be on topic, there are some files in the files
section of the site, one being beam_deflection.xls, a spreadsheet
that will offer some insite as to how much a beam might bend under
pressures.

Second there is a link, Shopswarf,
http://shopswarf.orcon.net.nz/sindex.html

that has some little data on aluminum. and that leads to the question
of what type of machine are you actually building?

Dave







--- In CAD_CAM_EDM_DRO@yahoogroups.com, "forumtvm" <forumtvm@y...>
wrote:

> Hi,
>
> Did my homework. Searched for aluminium grade, found nothing.
>
> My question: What grade aluminium to use for making fixture (for

cnc

> machines)?
>
> Reason for asking: got some aluminium from supplier - 6061. Was

told

> that there were 2 grade, and there was another cheaper grade. So I
> assume 6061 would be harder.
>
> However machining shop told me the aluminium I got was softer than
> the one he normally get from his supplier but could not tell me

what

> grade. So what grade of aluminium should one get for making

fittings

> for home-brewed cnc machines?
>
> Thanks
>
> Pete