2653 Test 4

Which of the following is not an abrasive material used in commercial cleaning application?

aluminum chips

Helical teeth on a cutter allow ____ to contact the work surface at a time. This results in ____ chatter and shock for the process.

(1) multiple teeth (2) less

The accuracy that can be expected from the milling process is:

0.0005 inches

The range of rise per tooth for internal broaching is ______ inches/tooth

0.001 to 0.0025

In the design of fixtures/jigs the principle of 3-2-1 uses locaton points to define

3 perpendicular planes

What NTM process is used to cut composites?

Abrasive waterjet

Which of the following statements applies to creep feed grinding?

All of the these

For American pattern files, the coarseness of a file is determined by:

An ASME standard that gives teeth per inch

The NTM process used to manufacture printed circuit boards is ____.

Chemical Machining

What device is used to manually produce external threads?

Die

Identify the type of cutter that would be used to machine a 12" wide, 48" long aluminum bar stock to produce a flat, smooth, and excellent finish on the 12" wide surface of the bar using as vertical knee-and-column milling machine.

Face mill

A fixture/jig should be design using the least number of standard elements possible.

False

PVC piping is an approved material for compressed air lines.

False

The lapping process must be performed only by hand without machinery

False

The surface finish produced by electrical discharge machining has a cross-hatch pattern with a roughness value of 32 to 120 microinches.

False

With centerless grinding, tubes will automatically have concentric inside and outside diameters.

False

Which of the following statements applies to centerless grinding

Heavy cuts and accurate size control are possible because the workpiece is supported at the grinding location

Bandsaw blades are frequently made with teeth of what material

High Speed Steel

The most common type of surface grinding machine is ___.

Horizontal spindle, reciprocating table

Which of the following does not apply to the thread milling process?

It is a process performed on a manually-operated milling machine

More flat surfaces are produced by the _______ process than any other milling process.

Milling

Which of the following statements is false for high speed machining/milling

One or more axes are always accelerating in a 3-D cut

In the equation fm = ftNn, N refers to :

RPM of the spindle

Waterjet machining is used to cut nonmetals.

True

Without proper chip disposal from a jig/fixture, chips can cause the workpiece to not seat properly

True

In up milling, the cutter rotates _____ the direction of the feed.

against

CNC milling machines are used in machining operations because:

all of the above

The chips formed during the broaching process:

are trapped in the gullet until the cutting edge exits the workpiece

What is the type of mill cuter used to produce a grove with a 1/8" diameter concave bottom in a vertical milling machine?

ball nose end mill

The threads on plastic flood containers are formed by:

casting

The teeth of an end mill cutter are located on the___.

circumference and the face of the cutter

The abrasive machining process is a mixture of processes. Which of the processes produces the chips formed by the grit?

cutting

You need to hold several small non-magnetic, thin stainless steel parts for machining. Which if the following would be a good choice?

electrostatic chuck

Which of the following is NOT a type of mounting method that is used with the abrasive machining process?

mounted

The milling process typically uses

multi-point tools

Which of the following is not an abrasive material used in commercial cleaning applications?

peanuts

In face milling, most of the cutting occurs at what area of the cutter?

peripheral edge

Conventional abrasive machine involves

rapid movement of abrasive grit at a shallow depth of cut

In centerless grinding, the ____ controls the rotation and longitudinal motion of the workpiece

regulating wheel

The abrasive machining process is a mixture of processes. Which of the processes produces friciton?

rubbing

The pattern used to offset the saw blade teeth from the centerline of the blade is called ___.

set

What process is used to manufacture the jaw teeth on a pipe wrench as discussed in class?

shaping

The clamping forces should be:

spread over a large area to avoid distorting the part

What is the milling of two parallel surfaces with side cutters called?

straddle milling

Internal threads are produced using

taps

For grinding wheels, dressing refers to ____.

the process to clean the grinding wheel and sharpen the abrasive particles

The structure of a grinding wheel refers to ____.

the spacing of the abrasive grit in the wheel

The grade of a grinding wheel refers to ____.

the strength of the bonds between the abrasive grits

In down milling, the cutter rotates _____ the direction of the feed.

with

What type of milling cutter is used to mill a semi-circular keyway in a shaft used in power transmission equipment?

woodruff keyseat milling cutter