DIAMOND COATED MICROTOOLS FOR MACHINING COMPACT BONE - Medical Device Manufacturing - page 101

Hence,

TC t

CH  

cos  cos 

(36)

Therefore,

s

2

. cos  . cos(    ). cos 

(37)

HQ

ˆ ˆ

sin H R  sin H C B  

b b

HC t .( d  s . cos  )

b

And,

ˆ ˆ

sin D  sin T  cos  (38)

In triangle HRD,

RD DH

(39)



ˆ ˆ

sin D H R sin H R D

Therefore,

(40)

ˆ

sin D H R s . d cos  . t .( d  s . cos  )

RD  r  DH .  .

b

ˆ

( d  s . cos  ) s

2

. cos  . cos(    ). cos 

sin H R D

b b b

Thus,

d . t

(41)

r 

s . cos  . cos(    )

b b

if the width of the lamellae, s, is small compared to the chip thickness, then for
continuous machining with a single shear plane,

d sin 



(42)



t cos(   )

b

Hence,