Milling

Question 1

what is milling

Answer 1

an interupted cutting operation

Question 2

what are the 3 different tuypes of milling operations

Answer 2

plain milling
face milling
end milling

Question 3

what is plain milling

Answer 3

axis of cutting tool purpindicular to surface
operation preformed by cuttiing edges of cutter
used on horizantal milling machine

Question 4

what are tyhe 2 types of plain milling/whats the difeerence

Answer 4

slab milling- cut covers whole workpeice
slotting- width of cutter is less then workpeice making a slot in the material

Question 5

what are the 2 types of face milling/whats the difference

Answer 5

convential face milling- cutter overhangs on both side
partial face milling- cutter overhangs on 1 side

Question 6

what is face milling

Answer 6

cuting across the face of the material

Question 7

what is end milling

Answer 7

the multpiple cutting edges tool

Question 8

what are the 4 types of end milling

Answer 8

surface contouring
profile milling
pocket milling
slot milling

Question 9

What is slot milling

Answer 9

most difficult end milling operation
the full cutter diameter is ingaged in the cut

Question 10

what is ppocket milling

Answer 10

mills pockets in the material

Question 11

what is profile milling

Answer 11

end milling on the outside of the part

Question 12

what is the surface countouring

Answer 12

a ball nose cutter on a curved path

Question 13

what are the considerations for end mills

Answer 13

material
coating
centercutiing
flute count

Question 14

what are the 3 different materials

Answer 14

HSS
solid carbide
indexable tooling

Question 15

why choose hss

Answer 15

cheaper then carbide
more forgiving
easily to sharpen

Question 16

why chose solid carbide

Answer 16

operates at higher cutting speeds/feed rates
better wear resistance
more rigid and stable
brittle/expensive

Question 17

why chose indexable carbide

Answer 17

only needd to replace inserts
get benifts of carbide
common for turning tools

Question 18

center cutting vs non center cutting

Answer 18

center has more variety of applications, is allowed to plunge dril and ramp
non centreing is used for side cutsonly, not applicable whem plunging is required

Question 19

what does flute count have to with materials

Answer 19

soft materials will need larger flute valleys

Question 19

what does flute count have to do tool geometry

Answer 19

more flutes mean large coreand smaller flute valleys

Question 20

how does milling work

Answer 20

workpeice is not moving tool is spinning

Question 21

climb vs conventional milling

Answer 21

climb is down milling while convemntional is up mlling

Question 22

climb milling advatages

Answer 22

less load on cutting edge
better surface finish
improves tool life
requires less tool power

Question 23

climb milling facts

Answer 23

cleaner sheer plane
longer tool life
chips less likely to be recut

Question 24

convential milling facts

Answer 24

increased tool wear
chips more likely to get recut

Question 25

what is shaping

Answer 25

shaping only cuts on forward

Question 26

what is planing

Answer 26

smilar to shaping but is more rigid and is used for larger peices

Question 27

what is broaching

Answer 27

a multi-tooth tool takes multiple cuts. each cut is a little deeper the earlier tooth

Question 28

what are the advantages of broaching

Answer 28

can be used for internal and external shapes
highly economic for mass production
easily can go from rough to finished
only used a single motion cutting

Question 29

what are the limitations of broaching

Answer 29

requires sperate tool per job
no size ajustability
high tool costs
usable only for light cuts

Question 30

what is sawing

Answer 30

narrow slit in into the peice with a tool with a series of closely spaced teeth

Question 31

what are the 3 types of sawing

Answer 31

hack sawing
band sawing
circular sawing