High-Feed Milling excavator shovel Ø25mm, S690/1.8928

Challenge

Manufacturing task:
Machining end bores

Workpiece material: 
S690 (1.8928), ~850 N/mm2

Machine:
DMC 125 H Duoblock, BAZ 5-axis

Tool adaptor:
SK50 – special adaptor

KOMET-Solution

Machining:
Helical milling with KOMET® Q56-KHF Ø 25mm, F55 06110
Screw-in adaptor: 58797025000106 (heavy metal)
Insert: Q56 20210.056435
Length 400 mm, allowance 5mm radial

Cutting data:
Vc = 138m/min, Coolant: water
fz  = 1,3mm/z
Vf = 9680mm/min
ap=0,6mm, ae=5,0mm

Setting rotary table:
2 bores / site, then rotation 180°

Customer's Benefit

Tool life quantity:
35 components with the 01- geometry. 210- geometry up to now without limits. Soft cutting action.

Result:
Good result, despite unstable contour. Good surface quality.
Prototype could be produced quickly and without much financial outlay.