Общий каталог Sumitomo 2018 - 2019 - страница 566

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Basics of Endmilling

Up-cut and Dowm-cut

l Side milling l Slotting

f f f t

t t

Up-cut

Work-Work-Down-cut
piecepieceWork-

Feed Feed Feed piece

(a) Up-cut (b) Down-cut

Work- Workpiece piece Feed Feed (a) Up-cut (b) Down-cut

l Wear amountl Surface roughnessl Condition
Workpiece: C50
Feed dir.Vertical dir.Endmill:GSX21000C-2D
0,08(ø10mm, 2 teeth)
-- --5 --
Cutting conditions:

0,06 Up-cut 4 -- v = 88 m/min

-- --Down-cutDown-cutc
(n = 2.800 min-1)
0,043 --Up-cutv = 530mm/min
-- --f

Down-cut Up-cut f t = 0,1 mm/tooth

0,02 --2 --d= 15 mm
oc
--w= 0,5 mm
1 --oc
0 50 100 150 200 250lllll
Side milling

Cutting length (m) 0 Dry, Air

Relation Between Cutting

Condition and DeflectionSide millingSlotting
Work material:Work material:
Pre-hardened steelPre-hardened steel
Endmill(40HRC)(40HRC)
Cutting data: v = 25m/minCutting data:
c
d= 12 mmv= 25m/min
occUp-Down-
W= 0,8 mmd= 8 mm
ococcutcut
Woc = 8 mmsideside
Feed rateFeed rateFeed rateFeed rate
Cat.Number Helix0,16 mm/rev0,11 mm/rev0,05 mm/rev0,03 mm/rev
No.of teethangleStyleStyleStyleStyle
Up-cut Down-cutUp-cut Down-cutUp-cut Down-cutUp-cut Down-cut
SSM

2080 2 30°

SSM

Cutting surface 4080 4 30°

Reference surface