Каталог Sumitomo твердосплавные пластины - страница 15

Positive M Class Chipbreakers for Low Carbon and General Steel TurningFB / LB

P

Type Type

Steel

• FB type for finishing and LB type for light cutting come in a series of chipbreakers for low carbon and general steel machining in addition to LU type for finishing and SU type for light cutting.
• The FB and LB type chipbreakers improve chip control in finishing of low carbon and general steel. ■ Application Range 3

B

SU

type 2

LB type

1

FB type

LU C

type

FB Type Chipbreaker for Finishing LB Type Chipbreaker for Light Cutting D

R

The reinforced edge The ridge reduces the risk of edge breakage. reduces the risk of unexpected breakage

S

The high rake breaker wall improves chip breaking performance The special breaker ridge shape ensures stable chip control.

T

0.5 0.8 The variable rake angle in nose radius increases the

chip strain and improves the breaking performance 20° 15°

c p c p

Stable chip control in shallow Stable chip control cutting at a low feed rate in light cutting

50mm 50mm

FB Type (T1500A) Competitor LB Type (T1500A) Competitor

Comparison of Surface Roughness of Finished Surfaces Chip Control

Work material: Pipe steel (STKM13A) φ100 boring Insert: TPMT110304N-FB (T1500A) Work material: Hub (S45C) Insert: VBMT160408N-LB (T1500A) Cutting conditions: v =200m/min f=0.07mm/rev a =0.1mm Wet Cutting conditions: v =240m/min f=0.25mm/rev a =0.6mm Wet

c p c p

LB Type (T1500A) 100mm

100μm 100μm Competitor

Tool life doubled by improved chip control and reduced surface blemishes 100mm FB Type (T1500A) Competitor