Wire edming PCD

[mdynac]

if you want to cut pcd or cbn, get and old andrew ef (biege)series machine,
it is the defacto standard for cutting diamond.......hands down.
i can modify them with a new pc based cnc system, instead of the old pdp8.

i have 6 customers whose ONLY business is pcd and cbn cutting, and they have about 40 andrew ef's between them doing this job.

these machines can be had for as low as few hundred bucks, and edm network has full support on them.

the old agie 312(?) machines work excellent for this also.

these machines cut pcd/cbn without any modification at all, they cut it like soft butter.

[wire_edm]

If a grade of PCD can be used with a smaller grain size this should be easier to cut and have better geometry. I am currently cutting with .004 wire and if needed to a finish of 7 to 8 ra. Have had trouble when cutting small radii (ex .0008 r).