I have tried searching www.matweb.com with no success to find out what AISI 3120 is. I have sample parts that appear to be investment cast steel, but am being told it is a powder metal, instead. Can any one clear up for me what this material is, and where I may find information.
May your...
Does anyone know of a simple (maybe by hand) hardness test or otherwise to test Aluminum for impurities based on hardness of the material at teh surface.
Current problem: Machining a casting (using carbide bits) from aluminum but there appears to be "dross" (technical term for...
The investment cast part was heat treated.
Also, the hardness of about 55 was a microharndess as they come out at about 30 on the RHC scale (per testing at our facility).
May your -dv/dt always be small.
I beleive they are pressed, repressed and then sintered. I believe (due to lack of specific numbers from vendor)that the density of the material is about 90-94% of the density of a cast part-I dont' know if this correlates to porosity in any way. Also, the part is heat treated to about 55...
The Investment cast part was replaced by P/M part (FL4605-100HT). Soon thereafter, we discovered part broke very easily when tools jammed. The breakage is near a corner. I would be looking for toughness qualites and a similar hardness. The parts are not used in extreme environmental...
Have you tried looking on http://www.mcmaster.com ? Some of McMaster-Carrs parts have downloadable 2-d and 3-D cad files for your use.
Chad
May your -dv/dt always be small.