IME 144 Midterm Review Exam With
Complete Solutions
.250" - ANSWER After making one turning cut, the cross slide handwheel is fed one full
revolution clockwise and one cut is taken.
What will be the resulting change in the workpiece's diameter?
.125" - ANSWER After making one turning cut, the cross slide handwheel is fed one full
revolution clockwise and one cut is taken.
What was the depth of cut (how far did the cross slide really move the tool)?
.001" - ANSWER Next, the cross slide wheel is turned one graduation clockwise, and
another cut is made.
What will be the resulting change in the workpiece's diameter?
Correct!
25 - ANSWER How many graduations should the cross slide handwheel be rotated to
reduce the work diameter another .025"?
.0125" - ANSWER In the question above, what was the depth of cut (how far did the
cross slide really move the tool)?
7 - ANSWER A workpiece's diameter is 1.157" after rough turning. The final desired
,workpiece diameter is 1.150". How many graduations should the lathe's cross slide hand
wheel be turned for the finishing cut?
rev/min - ANSWER The units for spindle speed on a lathe are?
rev/min - ANSWER The units for spindle speed on a mill are?
in/rev - ANSWER The units for feed on a lathe are?
in/min - ANSWER The units for the table feed on a mill are?
1000 - ANSWER A Ø2.0" piece of mild steel needs to be turned in a lathe using a carbide
cutting tool. The surface speed is 500 ft/min and the chip load is .0065 in/rev.
What is the recommended RPM for the turning operation above?
.0065 in/rev - ANSWER A Ø2.0" piece of mild steel needs to be turned in a lathe using a
carbide cutting tool. The surface speed is 500 ft/min and the chip load is .0065 in/rev.
What is the recommended feed for the turning operation above?
250 RPM - ANSWER A Ø4.0" piece stainless steel needs to be turned on a lathe using a
carbide cutting tool. The surface speed is 250 ft/min and the chip load is .0036 in/rev.
What is the recommended RPM for the turning operation above?
, .0036 in/rev - ANSWER A Ø4.0" piece stainless steel needs to be turned on a lathe using
a carbide cutting tool. The surface speed is 250 ft/min and the chip load is .0036 in/rev.
What is the recommended feed for the turning operation above?
1/2" End Mill - ANSWER When milling a rectangular pocket with ¼" corner radii in an
aluminum part what is the biggest possible tool that can be used?
3000 RPM - ANSWER A 2.0" X 2.0" block of aluminum needs to be milled using a 2.0"
4-flute carbide face mill. The surface speed is 1500 ft/min and the chip load is .005
in/tooth.
What is the recommended speed the mill's spindle should be set to?
60 in/min - ANSWER A 2.0" X 2.0" block of aluminum needs to be milled using a 2.0"
4-flute carbide face mill. The surface speed is 1500 ft/min and the chip load is .005
in/tooth.
What is the recommended table feed for the milling operation?
2400 - ANSWER A 2.0" X 2.0" block of 4130 steel needs to be milled using a ½" 4-flute
carbide end mill. The surface speed is 300 ft/min and the chip load is .002 in/tooth.
What is the recommended speed the mill's spindle should be set to?
19.2 in/min - ANSWER A 2.0" X 2.0" block of 4130 steel needs to be milled using a ½"
4-flute carbide end mill. The surface speed is 300 ft/min and the chip load is .002
in/tooth.
Complete Solutions
.250" - ANSWER After making one turning cut, the cross slide handwheel is fed one full
revolution clockwise and one cut is taken.
What will be the resulting change in the workpiece's diameter?
.125" - ANSWER After making one turning cut, the cross slide handwheel is fed one full
revolution clockwise and one cut is taken.
What was the depth of cut (how far did the cross slide really move the tool)?
.001" - ANSWER Next, the cross slide wheel is turned one graduation clockwise, and
another cut is made.
What will be the resulting change in the workpiece's diameter?
Correct!
25 - ANSWER How many graduations should the cross slide handwheel be rotated to
reduce the work diameter another .025"?
.0125" - ANSWER In the question above, what was the depth of cut (how far did the
cross slide really move the tool)?
7 - ANSWER A workpiece's diameter is 1.157" after rough turning. The final desired
,workpiece diameter is 1.150". How many graduations should the lathe's cross slide hand
wheel be turned for the finishing cut?
rev/min - ANSWER The units for spindle speed on a lathe are?
rev/min - ANSWER The units for spindle speed on a mill are?
in/rev - ANSWER The units for feed on a lathe are?
in/min - ANSWER The units for the table feed on a mill are?
1000 - ANSWER A Ø2.0" piece of mild steel needs to be turned in a lathe using a carbide
cutting tool. The surface speed is 500 ft/min and the chip load is .0065 in/rev.
What is the recommended RPM for the turning operation above?
.0065 in/rev - ANSWER A Ø2.0" piece of mild steel needs to be turned in a lathe using a
carbide cutting tool. The surface speed is 500 ft/min and the chip load is .0065 in/rev.
What is the recommended feed for the turning operation above?
250 RPM - ANSWER A Ø4.0" piece stainless steel needs to be turned on a lathe using a
carbide cutting tool. The surface speed is 250 ft/min and the chip load is .0036 in/rev.
What is the recommended RPM for the turning operation above?
, .0036 in/rev - ANSWER A Ø4.0" piece stainless steel needs to be turned on a lathe using
a carbide cutting tool. The surface speed is 250 ft/min and the chip load is .0036 in/rev.
What is the recommended feed for the turning operation above?
1/2" End Mill - ANSWER When milling a rectangular pocket with ¼" corner radii in an
aluminum part what is the biggest possible tool that can be used?
3000 RPM - ANSWER A 2.0" X 2.0" block of aluminum needs to be milled using a 2.0"
4-flute carbide face mill. The surface speed is 1500 ft/min and the chip load is .005
in/tooth.
What is the recommended speed the mill's spindle should be set to?
60 in/min - ANSWER A 2.0" X 2.0" block of aluminum needs to be milled using a 2.0"
4-flute carbide face mill. The surface speed is 1500 ft/min and the chip load is .005
in/tooth.
What is the recommended table feed for the milling operation?
2400 - ANSWER A 2.0" X 2.0" block of 4130 steel needs to be milled using a ½" 4-flute
carbide end mill. The surface speed is 300 ft/min and the chip load is .002 in/tooth.
What is the recommended speed the mill's spindle should be set to?
19.2 in/min - ANSWER A 2.0" X 2.0" block of 4130 steel needs to be milled using a ½"
4-flute carbide end mill. The surface speed is 300 ft/min and the chip load is .002
in/tooth.
