ME 381 Quiz 4

a tool with multiple teeth moves linearly past a stationary workpart

A broaching operation is best described by which one of the following?

turning

A lathe is used to perform which one of the following manufacturing operations?

1) Removing material to make shallow pockets in metal 2) removing metal from aircraft wing panels

Chemical milling is used in which of the following applications?

1) Enlarge a drilled hole 2) improve surface finish on a hole 3) improve tolerance on a hole diamter

Reaming is used for which of the following functions?

improve surface finish

Smaller grain size in a grinding wheel tends to

knee and column

The basic milling machine is which one of the following?

1) remove heat from the process 2) reduce friction at the tool-chip interface

Which of the following are the two main functions of a cutting fluid in machining?

1) high value of Ra 2) ease of chip disposal 3) low cutting forces 4) long tool life

Which of the following criteria are generally recognized to indicate good maintainability?

1) average tool change time per piece 2) time the tool is engaged in cutting

Which of the following time components in the average production machining cycle is affected by cutting speed?

superfinishing

Which one of the following abrasive processes achieves the best surface finish?

cubic boron

Which one of the following materials has the highest hardness?

bar machine

Which one of the following turning machines permits very long bar stock to be used?

discontinuous

Which one of the four types of chip would be expected in a turning operation conducted at low cutting speed on a brittle work material?

true

(True or false) A maintainability rating greater than 1 indicated that the work material is easier to machine than the base material

True

(True or false) Ultrasonic machining can be used to machine both metallic and nonmetallic parts

milling machine

A facing operation is normally performed on which of the following machine tools?

decrease the cutting speed for minimum cost

A high tooling cost and/or tool change time will tend to

low cutting speed and high feed and depth

A roughing operation generally involves which one of the following combination of cutting conditions?

cutting speed

Of the following cutting conditions, which one has the greatest effect on tool wear?

laser beam machining

Of the following processes, which one is best suited to drilling very small diameter holes?