Kyocera - Каталог Токарный инструмент 2016 ENG
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CBN TOOLS
Negative Inserts, Features of New Edge Prep. (Machining of Hard Materials)
MEP (High Speed / Continuous Machining) GRADES
Cutting Force Comparison Wear Comparison A
B
300 0.002”45° DCLNR2525M-12 4118H Hardened (55~60HRC) Rake Face C
MEP CNGA432 Type (KBN05M) Vc =490 sfm, D.O.C. = 0.008” D
0.005”25° f = 0.016 ipr, DRY E
250 ME 4118H Hardened (55~60HRC) INSERTS
Vc = 490 sfm, D.O.C. = 0.008”
Width: Standard Width: Narrow f = 0.006 ipr, DRY 0.0039 0.005” 25° (ME)
200 Angle: Standard Angle: Large 0.0031 0.002” 45° (MEP)
Cutting Force (N)
Principal Force150 0.0024 CBN & PCD
Feed Force
Back Force
Flank Wear (in)
Feed Force 0.0016 TOOLHOLDERS SMALL TOOLS
100
0.0008
Back Force
0 0 2 4 6 8 10
50 Cutting Time (min)
0 Principal Force Cutting Force MEP Prevents the Flank Wear, Compared to ME
Prevents Crater Wear
MEP Performs Lower Cutting Force than ME
Sharp Cutting
MEH (Interruption / High Feed Machining)
Toughness and Controls Flaking
High toughness Low toughness BORING F
against thrust force Poor thermal G
Back Force Excellent thermal Back Force conductivity
conductivity Fractures and flaking
Prevention of Flaking MEH Less fracture and due to thrust force GROOVING
flaking ME
(S00630)
(S00225)
Cutting Force and Chamfered Angle / Width
Cutting Conditions Chamfered Width: 0.005” Cutting Conditions Chamfered Angle: 25° CUT-OFF H
Vc=328 sfm D.O.C.=0.004” f=0.010” ipr Vc=328 sfm D.O.C.=0.004” f=0.010” ipr J
N
500 500 P
Cutting Force (N) Back Force Cutting force (N) Back Force THREADING
400 Principal Force 400 Principal Force
Feed Force Feed Force
300 300
200 200
100 100 HSK TOOLING SPARE PARTS
0 0 0 0.004 0.008 0.012 0.016 0.020
0 10 20 30 40 50 60
Chamfered Angle (°) Chamfered Width (in)
Cutting force is influenced by chamfered angle more than chamfered width.
Though enlarging chamfered angle is more effective for fracture resistance improvement than changing chamfered width,
the cutting force increases as well. Please refer to the graph for details.
MEGACOAT CBN Advantages of MEGACOAT TECHNICAL R
T
PVD Layer Coating Properties Improved MEGACOAT
Stability
)BSEOFTT (1B
INDEX
5J$ .&("$0"5 Extended High Speed
5J$/ Tool Life Machining
5J/ 5J"*/
• Long tool life and stable machining due to superior heat-resistance and hardness
• Stability improvement through prevention of crater wear (oxidation, diffusional wear)
• High thermal stability and surface smoothness provide excellent surface finish
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