There is the NMS geometry, designed for semifinishing
and medium machining high temperature alloys (e.g., Inconel 718 and Waspaloy, which most auto-related machinists are unlikely to run into, but you never know), as well as on ISO M materials, including type 304/316 austenitic stainless steels.
Two smaller MC 25 HMCs with HSK 63 tooling are used for drilling and tapping holes around the pan face and semifinishing
. The MC 25s include a 500x630 mm pallet and also offer 800mm axis travels.
With a simple tooling change, Datum Industries (DI) now roughs die cavities five times faster than before on average and completely eliminates cavity semifinishing
. "The roughed finish is good enough to let us go directly to finishing now," says Smith.
While roughing can be performed on CGI surfaces comparatively well, semifinishing
is more problematic.
KC915M is designed for semifinishing
to roughing of cast iron and ductile irons.
The DropMill ballnose endmill performs semifinishing
and finishing applications at high feed rates with two cutting edges--even with small depths of cut.
Also worth noting is the new DROPMILL, a ballnose end mill for high-feed semifinishing
and finishing applications.
Ultraspeed GC4015, GC4025, and GC4035 grade steel turning inserts guarantee a speed increase of at least 20% over existing grades for wet or dry semifinishing
, and roughing.
Round inserts produce smooth "transitions" and leave less stock for the semifinishing
In addition, an exclusive 120 deg ball-nose cutting head design is available for both full 3D cutting and high-speed semifinishing
of vertical walls.
KT315 is a TiCN-based cermet with PVD TiON coating for added wear resistance and better surface finishes in finishing and semifinishing
machining of steels, stainless steels, and cast irons, as well as powder metals, nickel alloys, and other non-ferrous alloys.
Traditional milling methods including roughing, semifinishing
, and finishing account for about 65% of the time required to manufacture a die or mold.