Here's a few more with pics along the way of a different wheel "in process" ... enjoy.
Fresh new shiny wheel blank is positioned on table ... notice the duct tape (always a new use for duct tape

) between the "rim" portion of wheel and the machine table ... this is to keep the wheel edge nice and shiny and to prevent nicks or scratches during the machining process. Nothing worse than a scratched up rim-edge to ruin a brand new wheel.
Mounting/hub pattern (holes around large center hole) are drilled & reamed ... and then the "starter" holes are drilled for the larger "open" portions of the wheels that are going to be removed during the machining process. Notice too that the "toe clamps" have now been installed ... gotta keep this puppy in one place while all the cutting is going on.
mounting/hub pattern is in along with the "starter" holes ...
next the larger "open" areas are roughed out ...
during rough machine ...
after rough machine ...
"drops" or the material that will not be needed are removed from the "open" areas of the wheel ... notice how the center section is featureless and "flat" looking ... we'll take care of that in the next step
at this point, we are ready to start the finish machining of the wheel ... this is what takes the most time ... this consist of any fine work like chamfering or radiusing of edges ... machining of any "flutes" or cosmetic features and/or any engraving that might take place ...notice the edge of the spokes in this case. once finished, the spokes will resemble a knife edge.
Taa-Daa!!! finish machined and ready for buff/polish and/or plating ...