Каталог Widia достижения 2020 - страница 160

Grooving and Cut-Off • WGC

Plunge feed rates

first choice P Steel K Cast Iron S High-Temp Alloys

v

alternate choice M Stainless Steel N Non-Ferrous H Hardened Materials

j

Chip Insert Size

0,2 0,09 3 0,4 0,11 0,4 0,12 4 0,8 0,15

Positive rake 0,4 0,15

-PT angle for lower 5

0,8 0,16 cutting forces. 0,4 0,15

6 0,8 0,18

1,2 0,20 0,8 0,20 8 1,2 0,22

0,2 0,09 3 0,4 0,11 0,4 0,12 Stable negative 4 0,8 0,15

cutting edge 0,4 0,15

-PN allowing for 5

0,8 0,16 more aggressive

1,2 0,20 0,8 0,20 8 1,2 0,22

10 1,2 0,24

Cut-Off Feed Rates

Geometry Description Geometry (SSC) mm 0,05 0,10 0,15 0,20 0,25 0,30 0,35 0,40

1B 0,06 2 0,07

Positive geom- 3 0,09

-F etry for reduced 4 0,11 cutting forces. 5 0,13 1B 0,06 2 0,07

-M aggressive feed 5 0,14 rates. Primarily

in cast iron. 6 0,16

8 0,14 2 0,10 3 0,14

8 0,23 NOTE: For cut-off inserts with a lead angle, maximum feed rate should be reduced by up to 40%.

Maximum Feed Rate Values

I.D. and Face Grooving

Material Feed

Group Factor For I.D. and face grooving

Data above is for P and K material groups. Maximum applications, reduce feed

values by following factors for shown material groups. S 0.8 H 0.5