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...
