Sumi Dual Mill DMS Series
● Compared to conventional high feed mill cutter inert, DMSL and DMSW inserts provide improved surface finish due to the arc-shaped edge
DMSW
Competitor A (High Feed Cutter)
20 40
20 40
-40 -20 0
-40 -20 0
（ Inch ）
0 .098 .197 .295 .394 .492 （ Inch ）
0 .098 .197 .295 .394 .492 Ra 11.2µm Rz 51.0µm
Ra 3.3µm Rz 14.1µm
Machine : Vertical Machining Center BT50, Part Material: 1050 Carbon Steel,
Insert: WNMU0807ZNER-G-ACU2500
H
Cutting Conditions: v c = 500 SFM, f z = .0984 IPT, a p = .0197", a e = 1.5748", Dry
Milling Cutter: DMSW08063RS04 ( ø63 4 teeth),
■ Cutting Force Comparison
DMSW
DMSL
- Principal Force - Feed Force - Back Force
- Principal Force - Feed Force - Back Force
2,000
4,000
DMSW
2,000
1,000
0
0
-2,000
-1,000
-4,000
0
1
2
0 1
2 3 4 5
(S)
(S)
Reduced Chattering
Reduced Chattering
Competitor B (High Feed Cutter)
Competitor C (High Feed Cutter)
- Principal Force - Feed Force - Back Force
2,000
- Principal Force - Feed Force - Back Force
4,000
2,000
1,000
0
0
-2,000
-1,000
-4,000
0
1
2
(S)
0 1
Heavy Chattering 2 3 4 5
(S)
Heavy Chattering
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Machine: Vertical Machining Center BT50, Part Material: 1050 Medium Carbon Steel, Milling Cutter: DMSL06020E03 ( ø20 3 teeth) Insert: LNMU06T3ZNER-G-ACU2500 Cutting Conditions: v c = 525 SFM, f z = .0236 IPT, a p = .0315", a e = 0.787", L= 3.937, Dry
Machine: Vertical Machining Center BT50, Part Material: 1050 Medium Carbon Steel, Milling Cutter: DMSW08050RS04 ( ø50 4 teeth) Insert: WNMU0807ZNER-G-ACU2500 Cutting Conditions: v c = 525 SFM, f z = .0256 IPT, a p = .0315", a e = 1.772", L= 13.4", Dry
■ Precautions for Corner Finishing * Corners will have over-cut or under-cut material relative to the corner profile.
DMSW/DMSL
(Reference) Shoulder Milling Tool
Fig 2
Fig 1
Over-cut portion
Corner Radius
Cutting Force
Corner Radius
■ Plunge Cutting Upper Limit
Max. a e (Inch)
Max. f z (IPT)
Remaining Material
Remaining Material
DMSL .1575 .0079 DMSW .3937 .0079
DMSL Corner Radius (Inch) Unmachined Surface Over-Cut Fig. .0197 .0346 0 1 .0394 .0272 0 1 .0591* .0213 0 1 .0787 .0161 .0008 2 DMSW Corner Radius (Inch) Unmachined Surface Over-Cut Fig. .0789 .0480 0 1 .0984 .0425 0 1 .1181* .0374 0 1 .1378 .0327 .0016 2 (*Programmable Radius) (*Programmable Radius)
a e
H155
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