Каталог Sumitomo фрезы со сменными пластинами - страница 59

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SEC-Sumi Power Mill

PWS(F) / PWSR Type

  • General Features

Highly reliable shoulder milling cutter with tangentially mounted for never-

before-possible high cutting edge strength and sharp cutting edges.

A 2-step insert array structure creates a new

PWSR Type to meet the needs of deep cutting.

  • Characteristics

Tangentially mounted inserts for outstanding cutting edge strength combined with optimised breaker for outstanding edge sharpness and cutting ability.

  • Nicked insert design created with high-precision molding technology allows stable milling even in applications with large tool overhang.
  • New ACP and ACK milling grades are used to meet the needs of various types of work material.
  • Performance
  • Performance Comparison with General-purpose G-type Inserts
  • Cutting Edge Strength Comparison
  • Comparison of Cutting Force

High cutting edge strength for excellent stability! Cutting that is nearly the same as screw-on type!!

1,000 3,000 1st Step Principal Force 2nd Step Feed Force

3rd Step 2,500 Back Force

800 ○：No breakage, edge OK × ： 2,000

Breakage, 600 unusable 1,500 Cutting Conditions Cutting Conditions

400vc=150m/minvc=150m/min
fz=0.20mm/t1,000fz=0.20mm/t
ae =3mma e=3mm
ap =10mma p=10mm
200500
DryDry
Work Material： S50CH Work Material： S50C
Tool Diameter： 80mmTool Diameter ：80mm
00
Sumi Power MillCompetitor ACompetitor BSumi Power MillCompetitor ACompetitor B
PWS Type(Screw-on)(Tangential)PWS Type(Screw-on)(Tangential)
  • Performance Comparison with Nicked R Type Inserts

Nicked R Type Inserts General-Purpose G Type Inserts Comparison of Cutting Force

Reduced cutting power and excellent vibration resistance! Face 7,000 Milling

R Type

Reduced 25%!!G TypeShoulder
6,000Milling
5,000High Feed
s!

chip 4,000 Radius

Small Multi- 3,000 Cutting Conditions Purpose

v c=200m/min R/

2,000fz=0.15mm/tProfiling
ae=20mm
ap=10mmGroove/
1,000DryT-Slot

Work Material：S50C Tool Diameter：100mm 0 Chamfering Nicked R Type General Machining (G-Type)

） Aluminum/

Cautions when Using Nicked R Type Inserts1Note for inserts set-upLight Alloys
4 Nicks4 Nicks
(Corners 1 and 4)(Corners 1 and 4)When using R type nicked indexable inserts, attach them so thatHigh-Speed
Cast Iron
the nicked grooves alternate as shown in the image to the left.
③④2）Note for cutting condition

In order to attach as shown in the image to the left, the feed rate per tooth is double that when attaching the same-shaped inserts on all teeth. This means ④ that adjustments should be made so the upper feed limit is as shown below. f =0.25mm/t

3 Nicks 3 Nicks z

(Corners 2 and 3)(Corners 2 and 3) Example: Use at f =0.2mm/t

z

Feed when all teeth are normal: 0.2mm/t

③ ③ Feed when nicked: 0.4mm/t

④ Any incorrect use of inserts may damage tools.