Page 853 - Tungaloy Catalog

Practical examples

Workpiece type Connecting rod Housing
Drill TDSU1125-02, øDc = 1.125" TDSU1687-02, øDc = 1.687"
Insert WWMU08X408R-DJ WWMU08X408R-DS
Grade AH9030 AH9030
1055 Ductile Iron

Workpiece material

Cutting speed : Vc (sfm) 630 390
Feed : f (ipr) 0.006 0.008
Feed speed : Vf (ipm) 13.0 7.1
Cutting conditions Drilling depth : H (inch) 1.2 3.2
Machine Vertical M/C, CAT40 Vertical M/C, CAT50
Coolant Wet Wet
14 1.8 times 12 Tool life
Machining length (ft/insert) 10 8 6 tool life! Machining length (ft/insert) 8 6 4 tripled!
12
10

Results 4 2 2
0 0
Competitor Competitor
AH9030 achieves longer tool life even when Tough cutting edge prevents chipping and edge
machining with external coolant supply, due to fracture, even when interrupted machining.
the high oxidation resistance. Increasing tool life and higher number of insert
corners drastically reduce machining cost.
Workpiece type Knuckle Valve
Drill TDSU2000-03, øDc = 1.969" TDSU1125-02, øDc = 1.125"
Insert WWMU13X512R-DJ WWMU08X408R-DJ
Grade AH9030 AH9030
4140 Alloy steel
11

Workpiece material

Cutting speed : Vc (sfm) 525 590 Drilling Tools
Feed : f (ipr) 0.004 0.007
Cutting conditions Feed speed : Vf (ipm) 4.4 14.5
Drilling depth : H (inch) 3, 2.5 2.0
Machine Horizontal M/C, CAT50 Horizontal M/C, CAT40
Coolant Wet Wet
18
1.2 1.5 times 16 2.2 times
Machining length (in/insert) 0.8 tool life! Machining length (ft/insert) 12 8 tool life!
14
1.0
10
0.6
Results 0.4 6 4 2
0.2
0 0
Competitor Competitor
TungSix-Drill is highly stable and produces no Improved tool life per corner leads to reduction
chattering due to lower cutting forces. of insert consumption. DJ chipbreaker allows
No sudden fracture and exactly using 6 corners excellent chip control and stable machining
reduce the machining cost. without vibration.

Relating Cutting Conditions Technical reference 11–37
pages (11-14 ) (14-1)