Section H 25-26

Sumi Power Mill PWS(F) / PWSR

■ General Features A highly reliable shoulder milling cutter with strong, sharp cutting edge and tangential inserts.

PWSR , with a 2-stage insert array structure supporting large depths of cut, has been added to the lineup.

H

*Made to Order Only

■ Features

● Tangential inserts with excellent cutting edge strength and optimized breaker provide superb cutting edge and sharpness. ● Serrated insert design created with high-precision formation technology allows stable milling and low chatter even in applications with large tool overhang. ● ACP and ACK series allow a wide range of materials to be covered.

■ Performance

Comparison of Cutting Edge Strength Strong cutting edge delivers superb stability ● General-purpose G Insert Performance Comparison

Comparison of Cutting Force Sharpness approaching that of screw-on inserts

40

3,000

1st Time 2nd Time 3rd Time

Principal Force Feed Force Back Force

2,500

32

○ : No Breakage, Good Cutting Edge × : Damaged, Unusable Cutting Conditions v c =492 SFM f z =0.008 IPT

2,000

24

1,500

Cutting Conditions v c =492 SFM f z =0.008 IPT

16

1,000

a e =0.12” a p =0.40” Dry

a e =0.12” a p =0.40” Dry

8

500

Work Material: S50C Tool Diameter: 80mm

Work Material: S50C Tool Diameter: 80mm

0

0

SumiPower Mill PWS Type

Competitor's Product A (Screw-on)

Competitor's Product B (Vertical)

SumiPower Mill PWS Type

Competitor's Product B (Vertical)

Competitor's Product A (Screw-on)

● Serrated R Insert Performance Comparison

Comparison of Cutting Force Reduced cutting power and excellent chatter resistance

Serrated R Insert

General-purpose G Type Insert

7,000

R Type G Type

Reduced by 25%!

6,000

5,000

ps!

4,000

ll chi

Sma

3,000

Cutting Conditions v c =656 SFM f z =0.006 IPT a e =0.80” a p =0.40” Dry Work Material: S50C Tool Diameter: 100mm

2,000

1,000

0

General-purpose G Type

Nicked R Type

1) Precautions when Mounting When using the serrated R indexable inserts, mount them so that the serrated grooves alternate as shown in the image on the left. 2) Precautions for Cutting Conditions A s these are mounted as in the image on the left, compared to mounting inserts of the same shape for all blades, the feed rate per tooth is doubled. Accordingly, f z = 0..010 IPT feed rate is set as the upper limit and can be adjusted for use. Ex.) For use with f z = 0.008"/t With all regular blades: Feed Rate per Tooth 0.008 IPT With serrated types: Feed Rate per Tooth 0.016 IPT Using inserts incorrectly may damage tools.

Serrated R Insert Usage Precautions

4 notches (Corners (1) and (4))

(3)

(4)

(4)

3 notches (Corners (2) and (3))

(3)

(3)

(4)

H151

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