Polymer suitable for maching thin walls
Polymer suitable for maching thin walls
(OP)
I’m looking for a material I can use to house an outdoor electrical device. The housing is to be machined. The housing needs to be 40mm deep to accommodate a 25mm deep semi-circular cut. This semi-circular cut has a 0.5mm wall at each end. We have tried nylon but the 0.5mm wall distorts beyond acceptable levels. Would FR4 accommodate this design? Has anyone successfully used a polymer to machine thin walls with a 25mm depth? Is this even achievable with machining?





RE: Polymer suitable for maching thin walls
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Polymer suitable for maching thin walls
Maybe something glass filled would be more stable if you HAVE to machine it?
RE: Polymer suitable for maching thin walls
You might think about machining the slot while the material still has a lot of wall left along the top edge, then pouring wax into the hole to act as support, then machining the top surface to size. I probably won't help much, but it's all I've got.
RE: Polymer suitable for maching thin walls
RE: Polymer suitable for maching thin walls
The cotton fabric based is not the easiest to clean machine but the paper based stuff is. I see they machine their product as well - might be worth a RFQ as they will let you know if it can be done.
Cheers
Harry
www.tynevalleyplastics.co.uk
It's ok to soar like an eagle, but weasels don't get sucked into jet engines.
RE: Polymer suitable for maching thin walls
I've machined some pretty darn thin features in type 1 gray PVC.. Of course its all about speeds/feeds/flute type,etc...
A "roughing" pass to remove most of the material (leave a 1.5mm or so wall) then a fine "finishing" pass to machine to final thickness should help..
RE: Polymer suitable for maching thin walls
RE: Polymer suitable for maching thin walls
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RE: Polymer suitable for maching thin walls
Regards
N D Senthil Ram
RE: Polymer suitable for maching thin walls
RE: Polymer suitable for maching thin walls