Hi all, I am wondering if it is possible to make a round spline broach. The broach is to form an inner spline on a brass gear approximately 20mm thick (still working on the finer points).
Gears will need 3 splines (equal spacing) with a max diameter of around 14mm with a tooth depth around 3 to 5mm.
I am planning to attempt to build my own prototypes (2), each unit will have approximately 8 gears to suit this spline size, so I am just trying to find the cheapest way to produce the gears I need, and though I am not sure what a professionally made broach would cost, I am sure it would not be cheap.
If it is possible to turn or cnc one, Just how would you do it?
What would be the best steel?
How would you harden it?
I have no experience with machining on a lathe or CNC mill, but am in the processes of buying both so I can attempt to build the prototypes.
I am also in the process of either building a furnace for alloy casting or buying a kiln. Since learning more about the processes that I will need to undertake, I am leaning towards a kiln for a more controlled heat, any thoughts.