Manufacturing Processes Symbols T1

Test 1

r

chip ratio

mu

coefficient of friction

Fn

Normal force to shear

shear strain

gamma

F

friction force

Rake angle

Alpha

Shear Plane Angle

Phi

t0

aka feed aka before the cut

N

Normal force

Fs

shear force

Beta

Friction angle

tau

Shear stress and strength

Ft

thrust force=Ff=feed force

When is the correction factor used?

Hpu/Pu Hpc/Pc U/Pu

volumetric specific heat

thermal diffusivity

K

What are the 3 types of machining?

turning, drilling, milling

what are the three bottom A’s in order

slab, center face, offset face

E

efficiency or Voltage

V

volume of metal removed

C

rate of removal with current

U

energy

S

Shear Stress