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6th Six Months > TPC 325 > Flashcards

TPC 325 Flashcards

1
Q

The jaws of the three-jaw universal chuck operate in?

A

Unison

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2
Q

The jaws of the four-jaw independent chuck can be?

A

Reversed, hold irregularly shaped workpieces, adjusted independently

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3
Q

The three-jaw universal chuck is ______ to set up and convenient to use.

A

Quick

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4
Q

The size of the lathe chuck is designated by its?

A

Diameter

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5
Q

Before picking up the chuck, place a _____ across the lathe bed and ways

A

Board

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6
Q

Never use ______ to install a chuck on the spindle threads.

A

Power of any kind

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7
Q

The two main objectives when installing work in a chuck are to have the work centered properly, and to have the work axis parallel to the?

A

Centerline of the lathe

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8
Q

How can you install and center irregular or oddly shaped work in a chuck?

A

Using a dead center

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9
Q

What method is limited to small diameter workpieces with a finished outside diameter?

A

Using a collet chuck

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10
Q

Where is the mandrel mounted at in a lathe?

A

Between centers

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11
Q

What does facing the rough workpiece do?

A

Gives a reference surface as well as square ends for later machining operations

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12
Q

Because cutting is done on the side of the facing tool, what is the most important angle?

A

The side rake angle

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13
Q

Tool alignment for facing

A

Set the tools cutting edge on the centerline of the workpiece

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14
Q

Many times a larger area will need to be faced, in such a case how should you feed the tool?

A

Automatically

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15
Q

What does rough turning the workpiece do?

A

This operation removes the bulk of material quickly

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16
Q

Rough cutting must leave enough material to?

A

Make a good finishing cut

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17
Q

A roughing tool will not?

A

Produce a good finish

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18
Q

The proper use of cutting fluids allows you to?

A

Increase cutting speed, deeper cuts, saves time

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19
Q

The basic difference between the finishing tool and the rough turning tool is the?

A

Finishing tools rounded point

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20
Q

What procedure do you use to make a trail finishing cut?

A

The same procedures that are used for trail rough cuts

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21
Q

Boring does what to a hole?

A

Makes the hole larger and trues it

22
Q

A bored hole is always _________ with the circle in which the workpiece or cutting tool is rotating.

A

Concentric

23
Q

You must allow for more end clearance when boring because?

A

It prevents the heel of the tool from rubbing against the workpiece

24
Q

Always use a boring bar with the?

A

Largest diameter that is practical for the job

25
Q

The cutting tool profile determines the type of _______ at the end of the bore.

A

Corner

26
Q

When installing the boring bar and bit adjust the compound rest to a?

A

60 degree offset

27
Q

When completing the rough boring, if necessary ____________ and clean out the chips

A

Stop the lathe completely

28
Q

What increases the inside diameter at one end of an existing hole, forming a recess in the workpiece surface

A

Counterboring

29
Q

Counterboring procedures are the same as?

A

Boring procedures

30
Q

The counterbore that produces this recess must be ________ with the hole you have just bored

A

Concentric

31
Q

What does machining a recess between two sets of internal threads do?

A

This recess provides chip clearance

32
Q

The diameter of the hole must equal the minor diameter of?

A

the finished threads

33
Q

Internal threading requires tool clearance at?

A

The bottom of a bored hole

34
Q

The thread cutting tool must be ground to meet the?

A

Particular thread form

35
Q

For right hand thread cutting

A

Rotate the compound rest 29 degrees to the left of the cross feed centerline

36
Q

You can bore an internal taper using either of two methods?

A

The compound rest method
The taper attachment method

37
Q

When using the compound rest method for boring tapers rotate the compound rest so that?

A

It is at a 3 degree angle with the centerline of the workpiece

38
Q

When using the compound rest method for boring tapers set the tool post and tool holder in line with?

A

The compound rest centerline

39
Q

What is the most accurate way to machine a taper on a lathe?

A

Using the taper attachment method

40
Q

The telescopic taper attachment works the same way as a plain taper attachment except?

A

That it has a cross-feed screw that telescopes internally to different lengths

41
Q

A faceplate provides a ___________ that is perpendicular to the lathes spindle axis.

A

Reference surface

42
Q

For truing a faceplate, you need to select a?

A

Broad-nosed finishing tool

43
Q

For large workpieces that pose mounting problems mount the work on a?

A

Faceplate and hold it with face-plate jaws

44
Q

You must clamp this workpiece to the face-plate, the clamps are inserted into the open?

A

Ends of the faceplate slots

45
Q

What does a driver do for the cutting tool?

A

It prevents the workpiece from shifting backwards from the force of the cutting tool against it

46
Q

Some workpieces cannot be held against the vertical surface of a faceplate. Their shapes prohibit this kind of mounting. In such cases use an?

A

Angle plate to mount and hold the workpiece

47
Q

If a job requires an angle plate to be mounted far out toward the edge of the faceplate, what must be used?

A

A counterweight must be used

48
Q

V-block angle plates, each half of the clamp has?

A

A set of V-shaped jaws

49
Q

A specialized mandrel for machining eccentric circular areas has more than one set of?

A

Center holes

50
Q

The workpiece is a cast housing. Because of its size and shape, the workpiece must be mounted on?

A

The lathe carriage for boring

6th Six Months (8 decks)

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