For continuous machining ｜ Ceramic for machining materials 30 - 70 HRC
Hardened material
Continuous finish turning hardened materials 30-70HRC
CBN’s low hardness reduces its wear resistance
Ceramic has superior wear resistance vs. CBN machining under HRC55
Effect of Wiper Flat on Cutting Edge
[ Cutting conditions ]
CNGA120412
Vc = 100m/min F = 0.1mm/rev ap = 0.5mm
330 SFM .004 IPR .020 DOC
Using a ZC7 insert with AG-chipbreaker improves surface finish and reduces machine down-time due to chip tangling. This results in increased productivity.
| Grade | Material | Operation type | Machining | Cutting speed (m/min) Cutting speed (SFM) | Feed(mm/rev) Feed(IPR) | DOC(mm) DOC(inch) | DRY | WET |
|---|---|---|---|---|---|---|---|---|
| ZC7 | Hardened material (HRC30-62) | Turning Continuous machining |
Finishing | 40 – 200 130 – 670 | 0.08 – 0.20 .003 – .008 | 0.12 – 0.8 .005 – .030 | – | ● |
| HC7 | Hardened material (HRC55-70) |
| Corner R | DOC (mm) DOC (inch) | Feed (mm /rev) Feed (IPR) |
|---|---|---|
| R0.4 R .016 | 0.15 0.007 | 0.05 ～ 0.08 .001 ～ .003 |
| R0.8 R .032 | 0.3 0.015 | 0.08 ～ 0.10 .003 ～ .004 |
| R1.2 R .047 | 0.4 0.02 | 0.10 ～ 0.13 .004 ～ .005 |
| R1.6 R .063 | 0.5 0.03 | 0.13 ～ 0.16 .005 ～ .006 |
| Round insert | 2.0 0.08 | 0.16 ～ 0.25 .006 ～ .010 |
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