Page 23 - machining_titanium_05_2019
P. 23
Table 11 Calculating Chip Thickness In Peripheral Milling
Figure
Condition Hm, hmax
Example Cutter position
fz MILLING TITANIUM
ae AE
AE≤90°* hmax d hm=fz×√ae/d
hmax=fz×sinAE
(ae≤d/2) hmax=2×fz×√ae×d-ae /d
2
vf
n
Fig. 10
1st method
AE hm=fz×sin (AE/2)
ae d
AE>90°* n hmax=fz
(ae>d/2) 2nd method
hm=fz×[√2/2+cos((AE-90°)/2)]
hmax hmax=fz
(=fz) vf
* also suitable for milling slots by disc milling cutters
ae
ae
d ae=d d
a) b) c)
ae ae
d d
d) e)
Fig. 13 Possible application of 90° face mills
21