ME-253 Intro to Manufacturing Lab

The cutting speed for a high-speed reamer is approximately _____ that for a similar-sized drill.

two-thirds

On the table saw, how far above the work should be the blade be when cutting?

1/8 of an inch

___ teeth per inch for cutting on the majority of light-duty machines, where work is limited to small sections and moderate to light feed pressures.

10- and 14-

The included angle of a drill point sharpened for general drilling is ___ degrees.

118

What is the minimum number of the people that must be in the shop for you to work?

2

The compound rest is set at ______ when cutting threads to permit the cutting tool to shear the material better than if it were fed straight into the work.

29 degrees

_____ teeth per inch for cutting large sections or readily machined materials.

4

___ teeth per inch for cutting harder alloys and miscellaneous cutting.

6

What number do you call in case of an emergency?

911

What is a blind hole?

A hole that does not go all the way through the work.

What is the "three-tooth rule" for sawing?

A minimum of three teeth must be cutting at all times.

When using the table saw, what do you use to push the material by the blade?

A push stick

What is a spur gear?

A spur gear is a toothed wheel that has teeth that run straight across the face and are perpendicular to the sides. The teeth are shaped so contact between the mating gears is continually maintained while in operation.

Where do you place your work on the belt and disk sander?

Against the rest

An air gauge employs air pressure to measure angles is called a(n) ___.

Air pressure leakage between the plug and hole walls

In which of the following categories do the various parts of the lathe fall? a. Holding and rotating the work. b. holding, moving, and guiding the cutting tool. c. driving the lathe. d. all of the above.

All of the above

Which of the following actions are considered dangerous when operating a lathe? a. wearing loose clothing and jewelry. b. measuring with work rotating. c. operating lathe with most guards in place. d. all of the above.

All of the above

What do you use to push a piece through a bandsaw?

Always use a push piece

A mandrel is usually pressed into the work with a(n) ___.

Arbor press

Where should the guards be set on the bandsaw?

As close the workpiece as possible

If you are not sure about something in the laboratory, what should you do?

Ask

The power hacksaw only cuts on the _____ stroke.

Back

Some lathes come equipped with a(n) ______ allowing for slower speeds with greater power.

Back gear

Work that is too large or too heavy to be turned in the horizontal position is turned on huge machines called vertical lathes or ___.

Boring mills

Accumulated metal chips and dirt are cleaned from the lathe with a(n) ___, never with your hands.

Brush

Cutting speeds can be increased 300% to 400% by using _____ cutting tools.

Carbide

There are times when a shaft is unsuitable as a bearing surface and connot be used with a steady rest. When this occurs, a(n) _____ can be used so the shaft can be supported with the steady rest.

Cat head

Before work can be mounted between centers, a(n) ______ must be drilled at each end of the stock.

Center Hole

The tip of a cutting tool to cut a Sharp V thread is sharpened using a(n) _____ to check that it is the correct shape.

Center gauge

The center of round stock can be found quickly with the ______ and rule of a combination set.

Center head

What should you do before starting a machine?

Check to see if it is clear by operating it manually

The device used to permit a drill with a taper shank too large to fit the spindle opening is called a(n) _____.

Collet

The two broad classifications of milling machines are fixed-bed and _____ milling machines.

Column and knee

The operation used to prepare a hole for a fillister or socket head screw is called ___.

Counterboring

What is the name of the operation used to cut a chamfer in a hole to receive a flat-head screw

Countersinking

What should be done to protect the lathe from the abrasive dust and grit created during grinding operations?

Cover the bed and moving parts with a heavy duty cloth

Internal thread

Cut on the inside surface of piece

External thread

Cut on the outside surface of piece

The distance, measured in feet or meters, that a point (tooth) on the circumference of a cutter moves in one minute, is known as the ___.

Cutting speed

When drilling a pilot hole, the hole should be as large as or slightly larger than, the width of the _____ of the drill point.

Dead center

The most accurate way to align a vise on a milling machine is with a(n) ___.

Dial indicator

Pitch diameter

Diameter of imaginary cylinder that would pass through threads at such points as to makewidth of thread and width of space at these points equal.

Lead

Distance a nut will travel in one complete revolution of screw

Pitch

Distance from one point on a thread to a corresponding point on next thread

Circles and arcs are drawn on work with a(n) _________.

Divider

The ___ should be used frequently when sharpening to ensure a correctly sharpened drill.

Drill point gauge

The surface being machined is parallel with the cutter face in ___ milling.

Face

A micron is one-thousandth part of a meter.

False

The two basic types of dial indicator are as follows: discrete and unbalanced.

False (continuous and balanced)

___ is used to indicate the distance that the cutter moves in one revolution of the work.

Feed

Polishing is an operation used to produce a(n) _____ on the work.

Fine finish

Match the correct phrases to the correct terms: 1. Fitted to the ways and slides along them... 2. Permits transverse tool movement... 3. Permits angular tool movement... 4. Used to mount the cutting tool... a. Tool post b. Saddle c. Compound rest d. Cross-slide

Fitted to the ways and slides along them... saddle Permits transverse tool movement... cross-slide permits angular tool movement... compound rest used to mount the cutting tool... tool post

The spiral grooves that run the length of the drill body are called ___.

Flutes

Milling cutters are sharp. Protect your hands with a cloth or _____ when handling them.

Gloves

In most lathe operations, you will be using a single-point cutting tool made of ____.

High-speed steel (HSS)

The ___ tooth pattern is also recommended for most nonferrous metallic materials.

Hook

After tightening the collet on the milling machine, what do you do with the wrench?

Immediately remove it

Face milling cutters over 6" (150 mm) in diameter are usually of the _____ type.

Inserted tooth

Boring is a(n) ___.

Internal machining operation in which a single-point cutting tool is used to enlarge a hole.

Gauge blocks are often referred to as ___ blocks.

Jo

The ___ is almost identical to the hand reamer except that the shank has been designed for machine use.

Jobbers's reamer

The process of forming horizontal or diamond-shaped serration on the circumference of the work is called ___.

Knurling

Major diameter

Largest diameter of thread

What should you wear on your hands when using solvents

Latex gloves

What is wrong with using a pencil to make layout lines on metal?

Lines will rub off and would be too wide

Stop the machine before making adjustments and _______.

Measurements

A micrometer caliper is nicknamed ___.

Mike

Can you use compressed air to clean up the machines?

No

Do you ever use a taper shank in a drill chuck?

No

Do you ever use the cord to move the hand power saw?

No

When using the drill press, do you ever hold the work with your hands?

No, always use a vise

When using the parting tool, the spindle speed of the machine is about ___ the speed used to conventional turning.

One-third

What do you do for 5 minutes after you are done in the shop?

Perform general cleaning around the shop

The surface being machined is parallel with the periphery of the cutter in ______ milling.

Peripheral

Large drills require a considerable amount of power and pressure to get started. They also have a tendency to drift off center. These conditions can by minimized by first drilling a(n) _____ hole.

Pilot

A(n) ___-type milling machine has a horizontal spindle and the worktable has three movements

Plain

The ___ punch has a sharper point than the center punch.

Prick

Knurling is commonly done to ___.

Provide a gripping surface, change the appearance of the work, increase the work's diameter

The rate at which the work moves into the cutter is known as the ___.

Rate of feed

the ___ type saw has a back-and-forth cutting action.

Reciprocating

List the three basic types of metal-cutting saws.

Reciprocating, continuous band-type, and circular-type

Cutting fluids are used to ___.

Reduce friction and wear Cool the cutting zone Reduce forces and energy consumption Flush chips from cutting zone Protect machined surface from environmental corrosion

What should you remove or secure before you work on the machinery?

Rings, necklaces, long hair, and loose clothing

A drill works by ___.

Rotating against material with sufficient pressure to cause penetration

The pitch of a thread can be determind with a(n) ___

Screw pitch gauge

Straight layout lines are drawn with a(n) ___.

Scriber

What does "gang milling" mean?

Several cutters being used at the same time to machine a job

In general, use the _____ arbor possible that permits adequate clearance between the arbor support and the work.

Shortest

What do you have to do to the cylinder valves when the welding job is done?

Shut them off

Before changing a blade or making an adjustment on the hand saw, what do you do?

Shut-off the power

What do you do to a machine before cleaning?

Shut-off the power

What is the procedure if you need to remove tools from the laboratory?

Sign the check-out sheet near the door

The ___ tooth pattern is preferred for cutting aluminum, magnesium, copper, and soft brass.

Skip

When sawing (slitting) thin stock, the _____ diameter cutter that provides adequate clearance should be used.

Smallest

Minor diameter

Smallest diameter of thread

A(n) ___ expansion reamer provides rigidity and accuracy not possible with conventional expansion reamers.

Solid

___ is the operation that machines a circular spot on a rough surface for the head of a bolt or nut.

Spotfacing

The ___ tooth pattern is best suited for cutting most ferrous metals.

Standard

What do you do if the drill binds in a hole on the drill press?

Stop the machine and turn the spindle backwards by hand

Long flat surfaces can be checked for trueness with a(n) _______.

Strightedge

A(n) ___ is the flat granite or cast iron surface used for layout and inspection work.

Surface plate

The size of a lathe is determined by the ___ and the length of the bed.

Swing

Automatic turning centers, also known as ______ machines can produce tiny precision parts in quantity.

Swiss-type

___ shank drills are used with a chuck.

Taper

___ shank drills fit directly into the drill press spindle.

Taper

On the milling machine, what do you check in relation to the cutter before cutting metal?

The direction of rotation

The Largest piece that can be turned between centers is equal to ___.

The length of the bed minus the space taken up by the headstock and the tailstock

What type of protection do people within the welding area have to wear for their eyes?

The recommended shades

Who do you have to get approval from before using welding equipment?

The shop staff

On the lathe, how far do you let the toolbit overhang the toolholder?

The shortest amount possible to avoid chatter

In or up-convectional milling, _____.

The work is fed into the rotation of the cutter

In climb or down-milling, ______.

The work moves in the same direction as the rotation of the cutter

The lathe operates on the principle of ___.

The work rotating against the cutting tool, which is controllable.

What will happen to your laboratory privileges if you do not clean up after yourself?

They will be suspended and you will not pass the class

The ___ is fitted to many lathe carriages. It meshes with the lead screw and is used to indicate when to engauge the half-nuts to permit the thread cutting tool to follow exactly in the original cut.

Thread dial

Internal and external grinding can be done on the lathe with a(n) ___.

Tool post grinder

Large circles and arcs are drawn on with a(n) ___.

Trammel

A dial indicator can be used to check for eccentricity.

True

A ring gauge is used to check whether diameters are within the specified tolerance range.

True

One-millionth part of a standard inch is known as a "microinch".

True

Optical flats employ light waves as a measuring standard.

True

Before removing a machine's guards or covers, be sure that all power to the machine is ___>

Turned off

A(n) ___ end mill is used when the cutter must be fed into the work like a drill.

Two-flute

A(n) ___-type milling machine is similar to the plain-type milling machine but a fourth element has been added to the worktable to permit cutting helical shapes.

Universal

A Vernier-type tool for measuring angles is called a(n) ___.

Universal Vernier bevel protractor

Round stock is usually supported on _________ for layout and inspection.

V-blocks

A(n) ___ scale on the spindle head of a vertical milling machine ensures accurate angular settings.

Vernier

Angular lines that must be very accurate should be laid out with a(n) _________.

Vernier protractor

A(n) ___-type milling machine has the spindle perpendicular or at right angles to the worktable.

Vertical

When possible, what should you use instead of solvents?

Water based cleaners

When do you need to wear safety glasses in the shop?

Whenever you are in the laboratory

Should you remove flammable liquids from the welding prior to welding?

Yes

What happens if you do not listen to the laboratory technician?

You lose your laboratory privileges and fail the course

After you turn off the power on the drill press, how so you stop the spindle from turning?

You never use your hand to let it stop on its own

After tightening the chuck on the lathe, what do you do with the chuck key?

You remove it immediately

When chips or strings form on the lathe during an operation, how do you remove them?

You use a brush or tool and never try to remove them with your hand

How do you remove chips from the work area?

You use a brush so you do not cut yourself

What tasks do you need to complete after you are done working?

clean up your area, wipe down the machines, and put all your tools away