Каталог Sumitomo твердосплавные пластины - страница 18

Important Notes for Wiper Inserts

Effects of Wiper Inserts Wiper inserts are effective for internal and external turning and end face milling as shown in the figure below. They can also maintain the surface roughness in high speed machining. ■ Range of Wiper Insert Effectiveness ■ Surface Roughness (actual measurements)

Face (effective) 15 Improved surface Improved surface

ID (effective) roughnessroughness 10

* Wiper inserts leave the same surface roughness as normal 5 inserts at tapers and corners.

C * Edge position correction (offset) may be required depending 0

0.1 0.2 0.3 0.4 0.5 0.6 0.7

on the insert shape. See the tables below. Feed rate f (mm/rev)

Coated Carbide, Coated Cermet and Uncoated Cermet D CNMG Type/WNMG Type/CCMT Type/CPMT Type LUW type/GUW type/SEW type breakers (CCMT and CPMT types are available only with a LUW typebreaker)

• Use a holder with a 95 cutting angle.

Cutting Cutting

R No machining program correction is required. angle angle

95° 75° The CNMG, WNMG, CCMT and CPMT type wiper inserts comply with the ISO standard and no machining program correction is required before use.

• The CNMG type can also provide a wiper effect at the obtuse (100 ) corner.

S When using the acute angle side (80°) When using the obtuse angle side (100°)

DNMX Type SEW type breaker

• Use a holder with a 93 cutting angle.

A machining program correction is required. Cutting Machining Program Correction

T angle Guide for DNMX Type Wiper Insert The DNMX type wiper insert does not comply with the ISO 93° (→ B19)

standard. It requires a machining program correction before use, as shown on the right page (page B19). V TPGX Type SDW type breaker

• Use a boring bar with a 93 cutting angle.
• TPGX type breaker cutting edge position correction (SDW type)

Machining program correction is required. Internal turning W The TPGX type wiper insert does not

Note: Unlike the other profiles, the TPGX type is only effective for boring. Z-axis (+)

CBN (SUMIBORON and Coated SUMIBORON) CNGA Type/CCGW Type/WNGA Type WG and WH type breakers

• Use a holder with a 95 cutting angle.
• CNGA type/CCGW type WNGA type breaker edge position correction (WG type/WH type)

A machining program correction is required.

Z-axis (+) DNGA Type/DCGW Type WG and WH type breakers

• Use a holder with a 93 cutting angle.
• DNGA and DCGW type breaker edge position correction (WG type and WH type)

A machining program correction is required.

not comply with the ISO standard. They require angle R0.4

Z-axis (+) Note: Unlike the other profiles, the DNGA type and DCGW type are only effective for external and internal turning. They cannot be used for end face milling.