CBN Machining Applications – Where is CBN Machining Cost Effective?

CBN Machining Applications – Where is CBN Machining Cost Effective?

“Hard Turning” Tool Steels 45Rc to 65Rc+

• Speeds of 200 SFM to 600+ SFM (Surface Feet per Minute)
• Chip loads of .002 to .020 IPR (Inch per Revolution)
• Depth of cuts .002 tp .200"
• Finishes to 16-Ra+
• Interrupted cuts – NO Problem
• Solid-top CBN inserts eliminate the problem of Mini-tip Melt-Off

Chilled Cast Irons (as cast) & Grey Cast Irons

* 300% Increased productivity vs. carbide
* Wear life 5 to 10 times TiN coated carbide
* 200% wear life in finishing cuts vs. ceramics
* Speeds start at 1600 SFM to 1400+
* Chip loads .004 to .020 IPR
* Depth of cut .002" to .400"
* Operations include turning, milling and boring

NiHard (White Iron) 450 Bhn to 750Bhn

* Speeds range from 250 SFM to 400+ SFM
* Roughing chip loads -.005" to .015" IPR
* Roughing depth cuts -.010" to .400"
* Finishing cuts, chip load starts at .002 to .020" IPR
* Finish cuts, depth of cuts -.002 to .300"
* Operations include turning, milling and boring
* Acme threading both ID & OD