I'm trying to get 15mm circular blanks out of a very thin sheet of aluminum foil (~10 microns) without burring or deformationI cannot seem to find a reliable way of achieving this under a budget of $200Could someone recommend a method/product? Thank you!
so which you have 9.19 gm of calcium sulphide, the way it is produced is of no effectMM of calcium sulphide CaS Ca 40 ; S 32 So CaS is 40 + 32 seventy twoSo the molar mass of calcium sulphide is seventy two and you have 9.19 gmso which you have 9.19/seventy two moles 0.128 moles.
here is your balanced equation 4 Al + 3 Cl2 2 Al2Cl3 we work out the mole of Al based only on the mass of Al the molar mass of Al is 27 g / mole moles of Al 54g / 27g /mole 2 moles we look at the ratios in the equation to see the moles of Cl2 required 2 x 3 / 4 1.5 moles
I would think the basic form would be a matched pair of blocks with flat surfaces together and held in alignment to allow opening to a slot and compressed to clamp the material, drilled to near 15 mm and honed/reamed out to 15 mm and a flat faced machined 15 mm cylinder to shear the blank at the wallsIt seems to me that the simplest way to make a holder/opener for the slot that would withstand the machining would be to either bolt a slightly bent spring steel sheet to the side of the blocks while they were clamped or to machine the sides to a slight bevel and bolt a flat piece of spring steel to sideIn either case, the spring steel would force alignment of the side and clamping to close the narrow slot would permit drilling and honing the hole to produce a shear faceI think it would work to have a flat face on the cylinder although experiments with a slight machined dish face (concave) to produce slightly more of a cutting edge might be in orderThe cylinder might need a center hole to release air to keep the compression of air from dishing the foil as it was moved down the cylinder, but that might apply only to the first piece if the cylinder is only moved up and down 1 mm or so between punches and shifts of the foil.
