MINIMIZED DEFLECTION FOR MAXIMUM MACHINING ACCURACY
BIG-PLUS simultaneous contact enhances machining rigidity with the larger contact diameter of the tool holder flange face, reducing deflection and improving accuracy and surface finish.
Strict Gage Control
Comparison of Machine Spindle Deflection
BT40
BT50
100
500
CONVENTIONAL
CONVENTIONAL
80
400
60
300
BIG-PLUS
Conventional
40
200
20
100
Cutting Conditions Machine: 40 Taper (Horizontal Machining Center) Cutter: Face Mill ø5" (6 cutting edges) Work Material: A2017 Duralumin Cutting Depth: .094"
BIG-PLUS
BIG-PLUS
H F
0
0
2
4
6
8
1
2
3
4
(kN)
(kN)
F
LOAD: F
LOAD: F
H
A vertical machine was used for the tests.
BIG-PLUS Spindle Principle Increased Contact Diameter = 4x Increased Rigidity
Comparison of End Mill Deflection
50 Taper
ø100
ø69.85
(100.00)4 (69.85)4
= 4.2 Times
Deflection
BIG-PLUS CONVENTIONAL
40 Taper
60 70 80 90 50 40 30 20 10
ø63
ø44.45
(63.00)4 (44.45)4
= 4.0 Times
30 Taper
ø46
ø31.75
0
0
1
2
3
4
(46.00)4 (31.75)4
= 4.4 Times
Radial Depth of Cut (mm)
6
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