Основной каталог Kyocera 2021 - 2022 - страница 844

Low cutting force and

tough cutting edge

High rigidity web thickness

Keeping A.R. max. at 17°, provides lower cutting force than the Provides excellent surface finish and

positive insert types of competitors superior cutting accuracy of the wall

Cuttting force comparison (internal evaluation) Surface finish comparison

(internal evaluation)

2,000

21% Good Clouded

1,500

1,000 M 500 0

MEV Competitor A Competitor B

Vertical inserts Cutting conditions: Vc = 200 m/min, ap × ae = 3 × 18 mm, fz = 0.10 mm/t, ø20 (3 inserts), Dry, workpiece: 42CrMo4

Low cutting force and large optimal web thickness provides

excellent chattering resistance

Chattering resistance comparison (internal evaluation)

Shouldering

80 Increased 60 rigidity Stable machining Chattering 40 occurred Chattering occurred 20 0 MEV Competitor A Competitor B Vertical inserts Cutting conditions: Vc = 200 m/min, ap × ae = 3 × 18 mm, fz = 0.10 mm/t, ø20 (3 inserts), dry, workpiece: 42CrMo4

Slotting

Competitor B

MEV

Competitor A (Vertical triangle inserts)

Good Chattering Chattering

Cutting conditions: Vc = 220 m/min, ap = 3 mm (Slotting), fz = 0.10 mm/t, ø20 (3 inserts), dry, workpiece: 42CrMo4

MEV Conventional A

Cutting conditions : Vc = 180 m/min, ap × ae = 3 × 40 mm, fz = 0.1 mm/t, ø50 (5 inserts), dry, workpiece: C50

Cutting accuracy of wall example

(Internal evaluation)

Machining image

43μm 13μm 12

MEV

10 Competitor A 8 6 4 2 Reference point Machined wall side 0

-60 -40 -20 0 20 40 60

Cutting accuracy of the wall (μm) Cutting conditions: Vc = 200 m/min, ap × ae = 3 × 10 mm (4 pass), fz = 0.15 mm/t, ø50 (5 inserts), dry, workpiece: C50 *Accuracy of the wall surface varies depending on cutting

conditions, machining environment, and insert combination.