unit 1,5,6,,7,8 Flashcards

1
Q

two types of arbor presses

A

hydralic and mechanical

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2
Q

bushings should be lubricated with high pressure lube before pressed into a bore no oil

A

true

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3
Q

the bore should always have a ?

A

chamfer

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4
Q

when working with bolster plate minimum pressure otherwise damage will be done

A

true

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5
Q

keyseat:

A

it is helpful to chamfer the leading end so it aligns

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6
Q

the mandrel is tapered about?

A

0.006 inch per ft

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7
Q
A
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8
Q

broaching atleast 2 or 3 have to be in contact

A

true

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8
Q

two important things in broaching

A

alignment and lubrication

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8
Q

never use a broach on material

A

harder then rockwell c35

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9
Q

most common tapers

A

morse taper and taper pin reamers

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10
Q

morse taper is

A

5/8 inch

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11
Q

dies are made in

A

1 1/2 inch

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12
Q

button dies are used in diestock for hand threading or in a machine holder for machine threading

A

true

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13
Q

collets are held securly in die stocks by a

A

knurled screw that seats in a dimple cap

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14
Q

hand threading needs

A

cutting oil or other threading fluids are important obtaining quality threads and long life

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15
Q

go gauge should on the thread

A

no go will not go more then 1 1/2 turns

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16
Q

a lathe can be used as a fixture

A

for cutting threads with a die

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17
Q

it is good practice to chamfer

A

the end of the workpeice before cutting a die

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18
Q

when cutting threads with a hand die

A

reverse rotation after each full turn to break chips

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19
Q

die is used to cut

A

external threads

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20
Q

dies are made from

A

high speed steel

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21
Q

button dies are made in diameter

A

of 1 1/2 inch and pipe of 1.2 inch

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22
Q

collets are held securley in diestocks

A

by a knurled screw that seats in a dimple cap

23
Q

hexagon rethreading dies are used for

A

fixing slightly damaged or rusty threads

24
Q

cutting oil or other threading fluids are

A

used in obtaining good thread

25
Q

outside material to be threaded is 0.002 to 0.005 inch

A

true

26
Q

when cutting threads with a hand die

A

reverse the die after full turn to break the chips

27
Q

tap drill charts usually give ntap drill sizes to

A

75 perfecnt thread

28
Q

rule of thumb is to have a bolt engage a tapped hole by 1 to 1 1/2 times it diameter

A

true

29
Q

dull taps produce

A

rough torn or offsize threads

30
Q

lubrication is one of the most important factors in tapping process

A

true

31
Q

turn tap clockwise one quater to one half turn then it back three quater of a turn to break chips

A

true

32
Q

taps are used to interna; threads in holes

A

true

33
Q

the active cutting part of the tap is

A

chamfer

34
Q

what are common taps 2,3,4 are common

A

true

35
Q

the # 1 tap has smaller major and pitch diameter and is used for rough cutting threads

A

trueq

36
Q

2 taps cut the thread slighty deeper

A

true

37
Q

3 tap finishes it size

A

true

38
Q

serial taps are for

A

tapping tough metals by hand such as stainless steel

39
Q

spiral points taps

A

can be operated at high speeds and require less torque to drive

40
Q

spiral fluted taps are used for tapping blinds holes

A

in ductile material such as aluminum magnesium brass copper and die cast

41
Q

tapered tap pipe taper is

A

3/4 inch per foot for pipes

42
Q

reducing friction with taps

A

liquid nitride produces a hard shallow surface

43
Q

oxide treatments prevent

A

chips from welding to the tool and reduce friction between the tool and work

44
Q

chrome plating is

A

effective on non ferrous and some soft steels

45
Q

hand reamers are designed to remove small ammounts of material

A

usally 0.001 to 0.005 inch

46
Q

hand reamers are made from

A

high speed steel

47
Q

hand reamers are back tapered

A

0.0005 to 0.001 inch

48
Q

3 types of hand reamers

A

morse taper, straight flute and helicial flute hand reamer

49
Q

the three hand taps in a set

A

taper, plug and bottoming

50
Q

if a high speed steel hand tap breaks one way to remove it is

A

with an eleltric discharge machine

50
Q

choose the correct tool to turn a die

A

die handle

51
Q

the cuttion action of a hand broach is preformed by a series of succesive teeth each protruding

A

0.003 inch further then proceding tooth

52
Q

pullers are used

A

to remove bearings hubs and sprockets

53
Q

when using a puller or press and removing a bearing from a shaft what would you do

A

before removing a bearing or hub from a shaft puller inspect and clean the shaft area

54
Q

the perfered stock allowance for hand reaming is between 0.001 to 0.005 inch

A

true

54
Q
A