Общий каталог Sumitomo 2019 - 2020 - страница 169

Surface Roughness Rz (µm)X axis (+)X axis (+) X axis (+) CeramicsSolid CBNPos.Neg.Insert Precautions when Using Wiper Inserts Effects of the wiper insert Wiper inserts are effective for external/internal diameter machining and for facing as shown in the figure below, surface roughness of the machined surface can be maintained even in high-feed machining. ■ Effective Range of Wiper Inserts ■ Machined Surface Roughness (actual measurements) Cutting Conditions: CNMG120408, vc=200m/min, ap=1.0mm, SCM435 External Diameter (effective) 25 Corners Wiper Insert (SEW Type) (ineffective) Ordinary ISO Insert20 Taper (ineffective) Improved Face (effective) 15Internal diameter (effective)10 surfaceroughness B * Note that wiper inserts leave the same machined surface 5 roughness as normal inserts at tapers and corners. * The cutting edge position may need to be offset depending 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 on the insert shape. See the offset table below. Feed Rate f (mm/rev) Coated Carbide / Coated Cermet / Cermet CNMG/WNMG/CCMT/CPMT Type LUW / GUW / SEW Type Chipbreaker (LUW Type chipbreaker only for CCMT / CPMT Type) · Use a holder with a cutting edge angle of 95°. Cutting Cutting · No tool compensation required. edge edgeangleangle CNMG / WNMG / CCMT / CPMT type wiper inserts comply with the ISO 95° 75° standard, allowing use without correcting the machining program. C · The obtuse (100°) corner on the CNMG type can also provide a wiper effect. When using acute angle side (80°) When using obtuse angle side (100°) DNMX Type SEW Type Chipbreaker · Use a holder with a cutting edge angle of 93°. Cutting D · Tool compensation required. edgeangleDNMX type wiper inserts do not comply with the ISO standard.93°DNMX TypeTool Program Correction Guide(→ B132) Correct the machining program (tool offset) as explained on the R opposite page (B132). TPGX Type SDW Type Chipbreaker · Use a boring bar with a 93° cutting edge angle. Cutting Edge Position Correction for TPGX Type Breaker (SDW) S · Tool compensation required. Internal boring TPGX type wiper inserts do not comply with the ISO standard. Cutting edgeCorrect the cutting edge positionangle 93° Nose Radius X direction Z directionR0.40.12-0.02 (tool offset) as explained on the right. R0.8 0.12 -0.02 T Note: Unlike the other profiles, the TPGX type is only effective for boring. Z axis (+) CBN (SUMIBORON / Coated SUMIBORON) V CNGA Type / CCGW Type / WNGA Type WG/WH Type Chipbreaker · Use a holder with a cutting edge angle of 95°. Cutting Edge Position Correction for CNGA/CCGW/WNGA Type Breaker (WG/WH Type) · Tool compensation required. CuttingCNGA, CCGW and WNGA type wiperedgeExternal Turning Nose Radius Type X direction Z direction W inserts do not comply with the ISO angle95°standard. Correct the cutting edge position R0.4 WG Type -0.02WH Type-0.06-0.02-0.06 (tool offset) as explained on the right. Z axis (+) R0.8/R1.2 WG TypeWH Type -0.01-0.06 -0.01-0.06 DNGA Type / DCGW Type WG/WH Type Chipbreaker · Use a holder with a cutting edge angle of 93°. Cutting Edge Position Correction for DNGA/DCGW Type Breaker (WG/WH Type) · Tool compensation required. CuttingDNGA and DCGW type wiper inserts do notedgecomply with the ISO standard.angle93°Correct the cutting edge positionExternal TurningNose RadiusTypeX directionZ directionR0.4WG Type-0.17WH Type-0.70-0.01-0.06 (tool offset) as explained on the right. Z axis (+) R0.8 WG Type -0.05WH Type-0.580-0.05 DNGA Type/DCGW Type Note: Unlike other contour shapes, the DNGA / DCGW Type can only obtain the wiper effect with outer diameter and inner diameter cutting techniques, and cannot be used for edge cutting. B131