Lathe and drills Flashcards
the quick change gearbox provides the drive for the____?
Feed rod
the apron handweel usually moves the carriage by means of_________?
R&P
what lathe parts is NOT attached to the Carriage saddle quick-change gearbox apron cross slide??
Cross slide
the r/min at which to set the lathe is calculated by _____ formula??
4*cs/d
the r/min for rough turning a 3-in. diameter steel shaft (CS=90) using a high speed cutting tool would be?
120
??taper in the head stock spindle should be cleaned by___
pushing a cloth into the hole with a stick and rod
the fastest and most accurate way to align lathe centers is by ___________??
the trial-cut method
tapers may be expressed in
taper per foot, inch, degrees…
to calculate taper per foot, what is not required length of taper length of work small diameter large diameter
large diameter
which thread form does not have a 60 degree angle
American national acme
do not take _____ cuts on long slender workpieces
big
most taper attachments can be set to the taper per foot or to the ______ of the workpieces
degrees
before a thread is cut, the end of the work should be ____
chambered
the lathe speed for the threading is one-____that for turning
quarter
the jaws of a three-jaw chuck are moved in and out by the means of a ____ thread
camlock
when cutting off work in a lathe, be sure the cutting blade projects beyond the holder ____ the diameter of the work plus ____ in. for clearance
50
127
never turn the lathe spindle or reamer _____ when reaming
dyhandle
set the toolpost to the left side of the compound rest when facing
false
when the compound rest is set to 30 degrees for facing. .20in. can be removed from the end of the work by feeding in the compound rest .010in.
true
use short, quick strokes when filing in a lathe
false
the knurling tool should be set up to point slightly to the left
false
a steady rest is clamped to the ways of the table
true
solid mandrels are hardened and ground parallel
true
