midterm

Question 1

the first thing when operating a machine tool is to determine how you will stop it prior to turning it on.

Answer 1

true

Question 2

a lathe..?

Answer 2

rotates the part and the tool is fixed in the tool post and tool holder

Question 3

the spindle has to turn in the counter clockwise direction for a chip to be created on the lathe (looking from the tail stock end)

Answer 3

true

Question 4

facing on the lathe removes material

Answer 4

from the ends of the stock

Question 5

the RPM that was recommended in the video for facing the ¾” stock was

Answer 5

800 RPM

Question 6

turning removes material

Answer 6

from the diameter of the stock

Question 7

the depth of cut that was recommended for both turning and facing was

Answer 7

.020 to .025 thousandths of an inch

Question 8

what is the distance the tool travels during one revolution of the part in Inches per revolution?

Answer 8

feed

Question 9

which of the following cutting tool material will you choose for high productivity turning application on steel

Answer 9

carbide

Question 10

carbide inserts have low hardness compared to high speed steel

Answer 10

false

Question 11

the cutting tool used in the lathe videos was made of carbide material

Answer 11

true

Question 12

for chamfering on the late we utilized the compound slide

Answer 12

true

Question 13

the tailstock on the lathe spins the drill chuck (Jacobs chuck)

Answer 13

false

Question 14

we used the live center in the tailstock to

Answer 14

support the part during the turning process

Question 15

we used rough passes to

Answer 15

remove material from our part rapidly to save time

Question 16

we used finish passes on the lathe to

Answer 16

create smooth surfaces that we can measure to

Question 17

an example of a single point cutting tool is a lathe turning tool

Answer 17

true

Question 18

we used the process turning to change the diameter from ¾” down to ½”

Answer 18

true

Question 19

the lathe used in the video was an example of an engine lathe

Answer 19

true

Question 20

you should always wear safety glasses while working in the machining lab

Answer 20

duh

Question 21

the measurement .100 is best communicated to a machinist as

Answer 21

one hundred thousandths of an inch

Question 22

the measurement ½” is best communicated to a machinist as

Answer 22

50 hundredths of an inch

Question 23

layout die or bluing is used in machining to

Answer 23

create a contrast so you can see scribed layout lines easier

Question 24

we would use a height gauge to

Answer 24

accurately scribe reference lines on our part

Question 25

micrometer, dial caliper, steel rule etc are used to make

Answer 25

a linear measurement