09-23-2023, 05:56 PM
I got around to replacing my induction wand with another unit (supposedly 100w stronger, quick disconnect for coils, faster fans, same fan on/off issue as previous version)
Long story short, I have gone through the testing process and everything is setup. What i don't know is a numerical value associated with parts of the brass.
I dont have $1000 for the ames hand held unit. A leeb tester is not appropriate for such thin walls. I don't have the money for an ultrasonic either so I have been thinking about this and options for sub $100 are limited to DIY exclusively. A webster w-20b is $279 from China. Leeb with DL probe is about the same cost.
I had thoughts about making an indenter and measuring intention width with a loupe while using virgin lapua brass as a control group....
This lead me to https://matweb.com/search/PropertySearch.aspx
Materials database which I can search materials by properties. This got me to thinking... is a scratch test possible?
Since AMP documented vickers hardness of fresh, work hardened, and re-annealed, we know the appropriate hardness range to target in the search... basically 100-140.
Shouldn't I be able to make a scratch test based on the database? I see some stuff I know I have laying around in the garage like 6061, oxygen free pure copper, etc.
Long story short, I have gone through the testing process and everything is setup. What i don't know is a numerical value associated with parts of the brass.
I dont have $1000 for the ames hand held unit. A leeb tester is not appropriate for such thin walls. I don't have the money for an ultrasonic either so I have been thinking about this and options for sub $100 are limited to DIY exclusively. A webster w-20b is $279 from China. Leeb with DL probe is about the same cost.
I had thoughts about making an indenter and measuring intention width with a loupe while using virgin lapua brass as a control group....
This lead me to https://matweb.com/search/PropertySearch.aspx
Materials database which I can search materials by properties. This got me to thinking... is a scratch test possible?
Since AMP documented vickers hardness of fresh, work hardened, and re-annealed, we know the appropriate hardness range to target in the search... basically 100-140.
Shouldn't I be able to make a scratch test based on the database? I see some stuff I know I have laying around in the garage like 6061, oxygen free pure copper, etc.