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CBN INSERT GRADES
CBN
CBN GRADES A
B
KYOCERA CBN is second only to diamond in hardness. CBN (Cubic Boron Nitride) is a INSERTS C
synthetically produced material with high thermal conductivity which provides stable cutting. E
CBN & PCD F
FEATURES G
H
• S uperior wear resistance when cutting hardened materials J
• S uitable for high speed cutting of cast iron and sintered steel L
• H igh thermal conductivity provides stable cutting M
P
FEATURES OF CBN
Material Description Color Av. Grain CBN Content Hardness of Transverse Advantages TURNING
KBN510 Black Size (m) Rate (%) Substrate Strength
(GPa) (MPa) · Excellent wear resistance and crack resistance, non-coated CBN
· Application: Finishing and continuous cutting of hardened die steel
2 50 28 1,000
KBN525 Black 1 and 45 25 1,250 · Good balance of toughness and wear resistance, non-coated CBN BORING
Under 55 · Application: General grade for hardened steel, high stability at high speed and high feed cutting
50
H KBN05M Blackish 0.5-1.5 45 27 1,000 · Heat-resistant MEGACOAT on highly heat-resistant CBN substrate
65 · Application: High speed finishing of hardened steel
Hardened (MEGACOAT) Red 2
Materials
KBN10M Blackish 1 and 28 1,000 · Heat-resistant MEGACOAT on CBN with hard binder phase, superior anti-crater wear resistance GROOVING
Under · Application: High speed finishing of hardened die steel
(MEGACOAT) Red
1-4
KBN25M Blackish 25 1,250 · Heat-resistant MEGACOAT on micro-grain CBN with heat resistant binder phase
Red · Application: Stable cutting of hardened steel at high speed
(MEGACOAT)
Blackish 30 1,350 · Heat-resistant MEGACOAT on tougher CBN
KBN30M Red · Application: Stable cutting of hardened steel for continuous to interrupted cutting
(MEGACOAT)
KBN65B Black 2 85 32 1,150 · Excellent wear resistance due to CBN with heat-resistant binder phase, non-coated CBN CUT-OFF
2 85 · Application: Stable cutting of sintered steel (ferrous sintered alloy) at low speed
2-4 90
Sintered KBN65M Blackish 0.5-6 80 32 1,150 · Heat-resistant MEGACOAT on CBN with heat-resistant binder phase
Steel Red 9 90 · Application: Stable cutting of sintered steel (ferrous sintered alloy) at low speed
(MEGACOAT)
K Blackish 34 1,350 · Heat-resistant MEGACOAT on CBN rich substrate THREADING SOLID END MILLS
KBN70M Red · Application: General cutting of sintered steel (ferrous sintered alloy) at high speed
Cast Iron
(MEGACOAT) Blackish 33 1,250 · Heat-resistant MEGACOAT on CBN rich substrate with hard binder phase
Red · Application: High speed finishing of gray cast iron
KBN60M
(MEGACOAT)
KBN900 Gold 31 1,050 · TiN coated solid CBN
· Application: Heavy duty, interrupted cutting and finishing of hardened steel, hardened roll steel and cast iron
(TiN COAT)
MEGACOAT CBN Advantages of MEGACOAT
Properties of PVD Coated Layer
• Long tool life and stable cutting due to superior heat-resistance and hardness MILLING
• Improvement of crater wear (oxidation, diffusional wear) resistance
• High thermal stability and surface smoothness provde excellent surface finish
SPARE PARTS
Application Map Sintered Steel Cast Iron TECHNICAL R
KBN70M T
Hardened Materials
Low Cutting Speed HighKBN05M INDEX
Low Cutting Speed High
Low Cutting Speed HighKBN30M
KBN25M KBN60M KBN900
KBN10M KBN35M KBN65M
KBN65B
Continuous Light Int. Interruption Heavy Int. Continuous Light Int. Interruption Continuous Light Int. Interruption
Finishing Medium Roughing Finishing Medium Roughing Finishing Medium Roughing
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