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Posted by Rich on June 11, 2008, 5:28 am
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> On Wed, 11 Jun 2008 10:06:04 +0100, Dudley Simons
>
>>Rich wrote:
>>> I have a choice, I just wonder what grade of aluminium I should be
>>> selecting for my electronic projects. I'm wanting to use 3mm thick.
>>>
>>
>>depends on what you want to do with the ali really, you probably nee
>>to
>>have a couople of grades rather than trying to do everything in a
>>single
>>grade.
>>
>>Do you want to bend it? If so then you need to go with one of the
>>softer options. However the soft stuff is often a pig to drill nice
>>clean holes without clogging drills. Also tends to stick to press
>>tools
>>and QMax cutters etc even when using copious amounts of lubricant.
>>
>>If you need to drill lots of holes then go with something fairly hard.
>>Drills, countersinks and deburrs a treat, reasonably stiff without
>>bracing but will not bend - it usually cracks.
>>
>>If you want to drill, bend and punch holes then half hard is the way
>>to go.
>>
>>Your stockholder of choice should be able to advise younon exactly
>>which
>>grades they carry and their suitability for your intended use.
>
> We use NS4 for almost everything, but it won't bend that well in the
> thicker
> sizes. It is half-hard anodising grade by memory.
> Peter
I'm actually wanting to make some flat chassis, and if I build any
cabinets, I would put them together using angle. Using say 1mm for the
cabinet sides.
So my aim in not to bend any aluminium sheets. So, iyt looks like NS4 is
good.
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