Material for Measuring fixture

[[An...]]

Hello together,

i need to create a measuring fixture for a aluminium cast.

My question is if its better to use the same material because of the change of the length due to temperature change,
or if using a thermal inert material would be better.

Thank you for helping.

[[Pe...]]

Hello,
my name is Peter.
I´m project manager.

I would prefer the same material because of:
- most of the modular measuring fixtures we designed were realized in aluminium.
- manufacturing, handling and price are better than metal.

If you have further questions, please let me know.


Peter Krächan
VID
Zeiss Industrial Quality Solutions
Carl Zeiss Fixture Systems GmbH
ZEISS Gruppe
Auf Rodert 6
66636 Tholey, Deutschland

Telefon: +49 6853 5012 629
Mobil: +49 170 455 27 80

[[Er...]]

All our fixtures are either Alca 5 EN 5083 (AlMg4,5Mn) or tool steel. Don't know exact alloy but its like tungsten and vanadium or something like that. We never had any problems, except when using 3d printed plastic crap. We have one printer that use carbon fiber mixed in or something like that, (don't know any thing about it), but it makes "ok" fixtures.