TPC 324 Lathe Turning Between Centers Flashcards by Ivory Tusk

Always check the lathe bed to make sure it is

Attached
Level
Straight
All of the above

Level

How well did you know this?

Not at all

Perfectly

Longer work pieces should be

Mounted between centers
Mounted in a chuck
Mounted on a faceplate
Any of the above

Mounted between centers

How well did you know this?

Not at all

Perfectly

When installing a faceplate

Screw it on by hand
Screw it on using the lathes power
Tap it in place with a small mallet
Use the face plate tool attachment

Screw it on by hand

How well did you know this?

Not at all

Perfectly

Always select a lathe dog

At least as long as the workpiece
Not larger than necessary to accept the workpiece
Slightly larger than necessary to accept the workpiece
That will bottom out in the faceplate

Not larger than necessary to accept the workpiece

How well did you know this?

Not at all

Perfectly

When facing, use a half center to

Allow clearance for the cutting tool
Cut back on friction on the dead center
Help turn very long work pieces
Turn at very high speeds

Allow clearance for the cutting tool

How well did you know this?

Not at all

Perfectly

Be sure the tail of the lathe dog

Bottoms out in the faceplate
Does not extend to the faceplate
Does not sit on the bottom of the faceplate
Extends beyond the heads stock

Does not sit on the bottom of the faceplate

How well did you know this?

Not at all

Perfectly

Make sure the cutting tool

Does not hang out excessively from the tool holder
Does not protrude from the tool holder
Extends well beyond the tool holder
Is always at a 90° angle toward the workplace

Does not hang out excessively from the tool holder

How well did you know this?

Not at all

Perfectly

The cutting speed and feed on a lathe should always be

Calculated to obtain the best possible finish
In accordance with published tables from manufacturers
In balance
All of the above

All of the above

How well did you know this?

Not at all

Perfectly

When moving the cutter into the workpiece during facing,

Always lightly strike the dead center
Be careful not to strike dead center
Do not loosen the carriage locking nut
Never use the hand cross feed

Be careful not to strike dead center

How well did you know this?

Not at all

Perfectly

Always remember that your depth of cut will

Reduce the overall diameter by one half the amount of cut
Reduce the overall diameter by exactly the amount of cut
Reduce the overall diameter by twice the amount of cut
Reduce the overall diameter three times the amount of cut

Reduce the overall diameter by twice the amount of cut

How well did you know this?

Not at all

Perfectly

Always use a right-hand tool when

Cutting left to right
Cutting right to left
Making a standard finishing cut
Shouldering

Cutting right to left

How well did you know this?

Not at all

Perfectly

Depending on the hand of cut, the cutting tool point should be _____ degrees toward the headstock or tailstock

2 to 3
4 to 5
6 to 7
8 to 9

4 to 5

How well did you know this?

Not at all

Perfectly

In rough turning, the cutter point should positioned _____ The centerline

4° below
5° above
5° below
Directly on

5° above

How well did you know this?

Not at all

Perfectly

With a constant depth of cut

An increase in speed does not affect feed
An increase in speed requires a decrease in feed
An increase in speed requires an increase in feed
An increase in speed will double the feed

An increase in speed requires a decrease in feed

How well did you know this?

Not at all

Perfectly

The most accurate way to test if adjustments are needed is

A finish cut
A rough cut
A trial cut
All of the above

A trial cut

How well did you know this?

Not at all

Perfectly

When reversing work end for end between centers,

Do not use the lathe dog on the reserved operation
Increase the feed rate
Increase the speed rate
Protect the machine surface from the lathe dog

Protect the machine surface from the lathe dog

How well did you know this?

Not at all

Perfectly

Always take your finishing cut

At twice the speed as the rough cut
In the opposite direction of the rough cut
In the same direction as the rough cut
With the same tool as the rough cut

In the same direction as the rough cut

How well did you know this?

Not at all

Perfectly

When aligning the cutting tool for a finishing cut

Set the cutting tool above the center line of the work
Set the cutting tool below the centerline of the work
Set the micrometer collar at the desired depth of the cut
Set the micrometer collar at the desired diameter of the work

Set the cutting tool above the centerline of the work

How well did you know this?

Not at all

Perfectly

A trial cut should be about

1/16 inch
1/4 inch
3/4 inch
1 inch

1/4 inch

How well did you know this?

Not at all

Perfectly

When a shoulder is to be turned close to the end of the workpiece, use a scale and

Compass to measure its location
Dye to measure its location
Hermaphrodite caliper to measure location
Micrometer to measure its location

Hermaphrodite caliper to measure its location

How well did you know this?

Not at all

Perfectly

The bent leg of a hermaphrodite caliper is placed against the_____ of the workpiece

Faced end
Middle
Outside diameter
Radius

Faced end

In order to lay off shoulder lengths more accurately when making more than one identical, use a

File
Finishing tool
Parting tool
Roughing tool

Parting tool

Filleted shoulders are turned with a_____ cutting tool

Round nosed
Square nosed
Straight nosed
V – tipped

Round nosed

Different size fillets are made by changing

The angle of cutter feed
The degree of tailstock offset
The nose radius on the cutting
To a different sized fillet attachment

The nose radius on the cutting

Square corners on a shoulder are needed when A chamfer is specified Other machine parts will be mounted against them The shoulder follows a taper The shoulder needs added reinforcement

Other machine parts will be mounted against them

Undercuts always ensure Chamfered edges Filleted shoulders Rounded corners Square corners

Square corners

Knurling operations always Deform the workpiece surface Smooth the workpiece surface True up a workpiece surface All of the above

Deform the workpiece surface

A 21 pitch knurling tool will produce a(n) _____ grade knurl Coarse Fine Medium Extra fine

Medium

On a finished work surface, filing is usually done to Bring the workpiece to finished dimensions Form a diamond pattern in the workpiece Remove tool marks and other irregularities All of the above

Remove tool marks and other irregularities

The split nut assembly is used only when Chamfering Cutting threads Knurling Shouldering

Cutting threads

Never engage the split nut assembly Unless another feed mechanism is in operation When another automatic feed mechanism is in operation When the trial cut is being made When working between centers

When another automatic feed mechanism is in operation

The distance from a point on one thread to the same point on the next thread parallel to the screw axis is the Lead Pitch Travel Width

Pitch

The distance which a point pon one thread travels during one revolution of the screw is the Lead Pitch Travel Width

Lead

When threading long slender workpieces, they should always be Held in a chuck Held in a mandrel Supported in a collet Supported with a follower or steady rest

Supported with a follower or steady rest

American National thread angles are always 40° 55° 60° 69°

60°

When cutting American National threads, the compound rest should always be set at an angle of 19° 29° 37° 42°

29°

The part of a lathe which can perform the same functions as a thread stop is the Ball crank Lead screw Live center Micrometer collar

Micrometer collar

How many divisions are marked on a thread dial indicator? 1 2 4 8

In cutting a right hand thread, the cutting tool is always fed At twice the angle of the tailstock setover From left to right From right to left In both directions

From right to left

A 5/8 in./ft. taper often used for twist drills, reamers, end mills, and lathe centers is the American standard machine taper Brown & sharpe taper Jaron taper Morse taper

Morse taper

A taper whose calculation depends on its assigned number in the form of a numerator over a constant denominator of 8, 10, or 2 is a(n) American Standard Taper Brown & sharp taper Jarno taper Morse taper

Jarno Taper

The basic formula for calculating a taper is Large diameter - small diameter – – – – – – – – – – – Length Length – – – – – – – – – Small diameter – large diameter Small diameter – large diameter – – – – – – – – – Length Tangent of the included angle – – – – – – – – – – – Large diameter + small diameter

Large diameter – small diameter – – – – – – – – – Length

The taper turning method which requires Work to be removed from the lathe for the set up is the______ method Compound rest Plain taper attachment Tailstock setover Telescopic taper attachment

Tailstock setover

The amount of inward and outward feed on the lathe’s compound rest when using the taper attachment is controlled by the Guide bar Lead screw Tailstock handwheel Tool post

Guide bar

A plain taper attachment requires you to Disconnect the crossfeed screw Disconnect the taper attachment from the lathe bed Misalign the dead center Swivel the compound rest

Disconnect the crossfeed screw

The key to using the compound rest method for turning a taper is the fact that the compound rest Detaches Moves up and down Swivels All of the above

Swivels

When using the compound rest method for turning tapers, you will need to work with angular dimensions because Taper dimensions are always given in angles Tapers are figured in metrics The base of the rest is graduated in degrees The compound rest swivels on half angles

The base of the rest is graduated in degrees

When making cutting adjustments using the compound rest method, you must back the compound rest all the way out in order to Allow for the play in the tool post Have full travel Make the tool contact the workpiece Use the hand cross feed controls

Use the hand cross feed controls

Along with using a series of trial cuts, the most accurate way to obtain angular settings for a taper turning is the Compass and gauge method Dial test indicator and veneer bevel protractor method Hand crossfeed, and micrometer collar method Surface averaging instrument method

dial test indicator and veneer, bevel protractor method

You should always cut off bar stock for machining After it has been rough, turned Slightly longer than needed Slightly shorter than needed With a band saw

Slightly longer than needed