TPC 323 Machine Shop Job Analysis Flashcards by Ivory Tusk

Straight turning is performed by machining a workpiece to the same diameter along the

Entire length of the workpiece
Included with of a relief notch
Prescribed length of a shoulder
Specified radius of a fillet

Entire length of the workpiece

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A groove or undercut at the diameter change to ensure grinding up to the square face of a large diameter is a

Fillet
Relief notch
Shoulder
Taper

Relief notch

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The most common method for turning tapers, larger than 3 in./ft is the _____ method

Compound rest
Cutoff
Tailstock setover
Taper attachment

Compound rest

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One facing a Work piece that is short, you should mount it

In a chuck
In a collet
On a mandrel
Any of the above

Any of the above

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When facing work between centers, use a half-center in order to

Provide clearance for the cutting tool
Provide space for mounting the tool
Provide travel space for the compound rest
Provide working clearance for the bent-tail lathe dog

Provide clearance for the cutting tool

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To make sure that bored and counter bored holes are concentric

Always use the power feed
Always use the same cutting tool for both
Always use the same lathe set up for both
Never use single-point tools

Always use the same lathe set up for both

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Bore large and irregularly shaped workpieces in a

Bench lathe
Horizontal boring Mill
Medium to large-size lathe
Production-type turret lathe

Horizontal boring mill

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Which of the following methods can be used for boring tapers?

Compound rest method
Cutoff method
Steady rest method
Tailstock setover method

Compound rest method

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The most accurate method for boring tapers on a lathe is the

Compound rest method
Cutoff method
Tailstock setover method
Taper attachment method

Taper attachment method

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The shape of screw threads cut on a lathe is determined by the

Depth of cut
Lathe feed setting
Pitch of the thread
Profile of the cutting tool tip

Profile of the cutting tool tip

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The most common way to drill in a lathe is to mount the drill

Between centers
In a chuck
In the headstock spindle
In the tailstock quill

In the tailstock quill

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When drilling long holes or working with bulky or cumbersome workpieces, You should mount the drill

Between centers
In the headstock
In the tailstock
In the tool holder

In the headstock

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The machine most often used for drilling jobs in which a high degree of accuracy is not needed is

Engine lathe
Horizontal boring drill
Sensitive drill press
Upright drill press with power feed

Sensitive drill press

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Use a radial drill press when the workplace

Is too large or bulky for an upright drill press
Is too small for an upright drill press
Is very small and intricate
Needs more accuracy and supplied by a sensitive drill press

Is too large or bulky for an upright drill press

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The major difference between spot facing and counterboring is spot facing

Is done before drilling
Is never used on castings
Removes less metal
Removes more metal

Removes less metal

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Boring is done in a drillpress by installing a boring bar in a

Boring head
Boring mounts
Crotch center
Tool post

Boring head

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Use drill jigs when

A lathe is the only machine available
A sensitive drill press is the only machine available
The hole is drilled only once
The same hole is to be repeated a number of times

The same hole is to be repeated a number of times

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Reaming can be done

By hand
In a drill press
In a lathe
All of the above

All of the above

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Honing is done with the use of

A facing tool
A special drill bit
An end mill
Very fine abrasive stones

Very fine abrasive stones

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Machining a groove in the surface of a flat piece of metal is an example of______ milling

Plain
Side
Slab
Straddle

Side

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Machining angular, concave, and convex cuts into metal workpieces are examples of ______ milling

Face
Irregular
Profile
Side

Profile

Face milling cutters 6 in. or less in diameter are called

End Mills
Facing cutters
Shell end mills
Staggered tooth cutters

Shell end Mills

Machining keyways for a standard woodruff key is a common example of

Face milling
Planing
Shaping
Slotting

Slotting

The primary advantage of shaping as opposed to milling is

A shaper tool can get into places that a milling cutter cannot
Single-pointed cutting tools are less costly than milling cutters
The single-pointed cutting tool is easily made
All of the above

All of the above

A slotting machine is actually the same thing as a(n) Upright drill press Vertical boring mill Vertical shaper Vertical shaping lathe

Vertical shaper

The cutting action of a broaching machine is done by Circular passes Pushing or pulling horizontally Rotating the cutter Vertical drilling action

Pushing or pulling horizontally

The cutting teeth on a broach Are higher in the middle than at either end Are the same height from one end of the broach to the other Decrease in height from the end entering to the end leaving the workpiece Increase in height from the end entering to the end leaving the workpiece

Increase in height from the end entering to the end leaving the work piece

Surface grinding is done in order to Produce extremely close tolerance Produce very fine finishes Remove metal that is too hard for a normal machining All of the above

All of the above

The main advantage of using a vertical grinding machine is that A greater area can be done in less time A smoother finish is obtained It is less costly than other processes Less skill is involved

A greater area can be done in less time

The accuracy required to hold close tolerances Affects the choice of machine Affects the function of the final workpiece Increases the skill involved in machining All of the above

All of the above

Angular dimensions are measured in Degrees and minutes Inches and feet Meters and centimeters Pounds and ounces

Degrees and minutes

Care must be taken when working with angular tolerances because Only a minus tolerance is given Only a plus tolerance is given The spread becomes larger as distance increases away from the center Tolerance fluctuations cannot be determined

The spread becomes larger as distance increases away from the center

In a unilateral system of specifying tolerances Both a plus and a minus is given Neither a plus nor a minus is given Only a plus or a minus is given All of the above

Only a plus or a minus is given

Tolerance stackup must be calculated when working with Multiple cutting tools on different surfaces Multiple dimensions on one workpiece Multiple workpieces on one machine One workpiece on different machines

Multiple dimensions on one workplace

A rough cut removes excess material and allows for Dimensional runout The finish cut Tolerance stackup All of the above

The finish cut

When taking a rough cut, you must take finishing operations into account, or Special fixtures may be damaged The finished workpiece may be undersized The machine will overheat Undo tool aware will result

The finished workpiece may be undersized

During a finish cut, A new machine is always required A small amount of material is removed Enough material is left for one or two more cuts Large amounts of material are removed

A small amount of material is removed

The type of surface finish made by a machine tool is influenced by Feed marks left by the cutting tool The way chips are formed by the tool Vibration between the workpiece and the tool All of the above

All of the above

A surface averaging instrument measures Average roughness of surface texture Depth of cut needed for finishing Feed rate for a given tool Rake angle in a single-point cutting tool

Average roughness of a surface texture

The ease with which metal can be removed from a workpiece is referred to as Cutting tool strength Machinability Machining variables Work peace variables

Machinability

Brittle metals like cast iron form chips that are Continuous Continuous with a built-up edge on the cutting tool Discontinuous Irregular

Discontinuous

When selecting cutting fluids, you should always consider Amount of fluid Point of fluid application Type of fluid All of the above

All of the above

Solid lubricants are mainly used on Hacksaw and bandsaw blades High-speed drill bits Single-point cutting tools Very large milling cutters

Hacksaw and bandsaw blades

After a list of operations has been made for a specific job, the next step is to Check dimensions and tolerances Consider cutter cost Decide on the machine Make the best operational sequence

Make the best operational sequence

A careful study and analysis of the total job is crucial to Cutter life Machinability Machining efficiency Workplace variables

Machining efficiency

For maximum working efficiency, always try to Move the work to different machines to gain accuracy Use the same cutter for all operations Use the same machine for as many operations as possible Work as fast as safety will allow

Use the same machine for as many operations as possible

Specially designed fixtures and attachments can be justified when A fast wearing part is made on a regular basis Emergency parts must be made to keep a production line running Spare parts must be made for obsolete equipment All of the above

All of the above

Always try to select a machine, which is One of the Newest machines in the shop One of the older machines in the shop Slightly oversized for the job Slightly undersized for the job

Slightly oversized for the job

When choosing a machine for a given operation Make sure the machine has more than enough power to perform the job Stay away from the outer limits of a machine’s capacity Use the machine designed for that specific operation All of the above

All of the above

The most accurate way to drill in a lathe is Drill rotating and workpiece rotating Drill stationary and workpiece stationary Drill stationary with workpiece rotating Workpiece stationary with drill rotating

Drill stationary with workpiece rotating