Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 25

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 SUMIBORON One-use Wiper Inserts  WG Type / WH Type ■ Characteristics ● SUMIBORON one-use insert with wiper flat for Hardened Steel machining. ● Excellent surface finish similar to grinding ● Improved efficiency with higher speeds and feeds ● Lineup includes WG type for low-feed cutting and WH type for high-feed cutting. ■ Purpose of Wiper Edge ■ Surface Roughness of Wiper Insert Wiper Insert f: Feed rate Wiper Insert (WG Type/WH Type) Standard Insert (No Wiper Nose Radius R0.8) Feed direction Low feed cutting High feed cutting Low feed cutting High feed cutting Rz (Highest peak) (f = 0.10) (f = 0.30) (f = 0.10) (f = 0.30) Wiper edge Normal Insert Surface f: Feed rate Roughness Insert Feed WG Type WH Type Work direction Rz (Highest peak) Surface Roughness Rz 0.63 m 1.39 m 1.98 m 9.20 m (Highest peak) The wiper flat offers good surface finish and improved efficiency. 220 ■ Recommended Cutting Conditions (Surface Roughness Cutting Speed vC (m/min) Standard: 1.6s to 3.2s) WG Type WH Type BNC2010 ● For optimum effectiveness, use wiper inserts for continuous cutting. For copy turning, inserts with nose- 150 radius are recommended. WG Type WH Type BNC2020 100 ● Chattering and undulation may occur, please use work material and machines with high rigidity. WG Type WH Type BN2000 50 0.05 0.1 0.2 0.3 0.4 Feed Rate f (mm/rev) WG Type: Recommended feed rate of f = 0.20 or lower (Surface Finish Rz = 1.6 to 3.2 μm) WH Type: Recommended feed rate of f = 0.20 or higher (Surface Finish Rz = 1.6 to 3.2 μm) Lineup includes five grades (BN2000, BNC2010, BNC2020, BNC200, BNC160) to suit different ■ Important Notes About Wiper Inserts cutting speeds. CNGA Type/CCGW Type/WNGA Type WG Type/WH Type Breaker L ・Use a toolholder with a 95° cutting angle. CNGA Type/CCGW Type/WNGA Type Breaker Cutting Edge Position Compensation (WG Type/WH Type) ・Tool compensation required 95° Nose Radius Type X direction Z direction SUMIBORON CNGA Type/CCGW Type/WNGA Type cutting External Turning wiper inserts do not follow the ISO angle X axis (+) R0.4 WG Type -0.02 -0.02 standard. Correct the cutting edge (tool WH Type -0.06 -0.06 offset) as explained on the right. R0.8/R1.2 WG Type -0.01 -0.01 Z axis (+) WH Type -0.06 -0.06 DNGA Type/DCGW Type WG Type/WH Type Breaker ・Use a toolholder with a 93° cutting angle. DNGA Type/DCGW Type Breaker Cutting Edge Position Compensation (WG Type/WH Type) ・Tool compensation required External Turning Nose Radius Type X direction Z direction DNGA Type/DCGW Type wiper inserts 93° X axis (+) WG Type -0.17 -0.01 do not follow the ISO standard. Correct cutting R0.4 angle the cutting edge position (tool offset) as WH Type -0.70 -0.06 explained on the right. R0.8 WG Type -0.05 0 Z axis (+) WH Type -0.58 -0.05 Note) Unlike the other profiles, the DNGA Type and DCGW Type are only effective for external turning and internal boring. They cannot be used for facing. L25