328 Flashcards
which of the following can only be cut on power hacksaw or horizontal bandsaw
round stock
the major advantage of a bandsaw over a hacksaw is that the bandsaw
makes no wasted motion
when you install the band in a horizontal bandsaw the teeth must point
downward and to the right
when you set up a light duty horizontal bandsaw how will you set the band speed
change the drive belt direction
when preparing to make a cut with a horizontal bandsaw which of the following is the final step you will take
move the head control lever to release
if the vertical bandsaw you use requires solid one piece guide inserts you must select a pair of upper and lower inserts to match the
width and thickness of the band
when you set the blade of a vertical bandsaw-make sure the teeth in your right hand point
downward
when you approach the end of a cut made on the vertical bandsaw you should
reduce the feed pressure
before you use the vertical bandsaw an essential safety requirement is to make sure that
all guards are in place
after you cut apart the band of a vertical bandsaw how should you clean the band ends before rewelding them
sand them
which of the following is a major feature of the sensitive drill press
its feed is directly under operator control
before you change from one tapered shank drill bit to another make sure to
clean the chips from the shank and spindle
which type of drilling machine can be used for boring operations
radial drill
what is a good rule to follow in planning the order of machining steps
plan the order to include as few changes in setup as possible
when securing a workpiece on the drill press table before you tighten the vise jaws you should
tap the workpiece lightly to seat it
for holes over 5in in diameter you should use either a ___ or a ____
gear head drill press: radial drill
you must drill a 5 in hole in a workpiece of hard cast iron. (rec. cutting 70 sfpm) what is a good approximate spindle speed
560 rpm
you back a large diameter drill out of thick stock periodically and clear out chips to avoid
breaking the drill
if your drills cutting edge chips as you begin your project the most likely cause is a
excessively high feed rate
when you counterbore a hole you should use a boring bit with a pilot whose diameter is
the same as the existing hole
the most distinctive feature of a typical precision vise for shaping operations is its
ability to tilt
whenever you leave a horizontal shaper even if the project you are working on is not completed you must
remove cutting tool
to help ensure safe operation which of the following should you do before you. operate a shaper
set the transmission on the slowest speed
which of the following must you do before mounting a workpiece in the shaper vise
indicate in the vise or worktable
when you mount a block-shaped workpiece in a shaper vise the last step in seating the workpiece is to
tap the work lightly with a soft mallet
when preparing to use the shaper which of the following should you do first
set the length of stroke
calculate the stroke rate setting for a crank type horizontal shaper with a 5in ling workpiece of cold work tool steel 40sfpm rec.
46.6 strokes per minute
what is the actual total overtravel made by the ram in one complete cycle of its stroke when the machine is set up according to recommended guidelines
3/4
an absolutely essential safety precaution to use with shapers is to
wear eye protection
which of the following operations is especially well suited for a horizontal shaper and is usually not possible to do on any other machine
cutting a slot or keyway
all of the following can be finished with a surface grinder except
the shoulders of a cylindrical workpiece
an essential requirement for beginning a grinding project is to
allow enough surplus material for grinding
when you dress and true a grinding wheel start by lowering the wheel so that the diamond lightly touches its
high point
when grinding a long rectangular workpiece your first step is to grind the
basic flat surfaces
when setting up a workpiece on the surface grinder which of the following procedures should you do last
turn on the coolant
what is the recommended allowance for finishing cuts in general purpose grinding
0.00005 to 0.001
to achieve a cutting speed of 4500 sfpm with a 9in grinding wheel the wheel must rotate at about
1900 rpm
in order to hold a workpiece securely between centers on a cylindrical grinder you must
use pressure from the footstock
which calculation will give you the approximate rotation speed for a workpiece on a cylindrical grinder
sfpm x 4 / workpiece diameter
when the wheel is wider than the raised surface to be ground the procedure to use is
plunge grinding
one feature common to all types of horizontal boring mills is the
headstock column
an optional component that enables you to bore from several different directions without changing the setup is the
rotary table
an advantage of the stub boring bar over a line boring bar is that it
decreases vibration
when using a light weight boring bar you need a cutter with a
large back rack angle and a large side rack angle
when you use a dial indicator to measure alignment on finished surfaces correct alignment is achieved when the dial reading
remains constant
when you align a workpiece having a pre-machined hole and using a dial indicator mounted in the spindle what you are really checking for is
concentricity
when setting up a line boring operation measurements are usually made from the layout lines to the
boring bar
if you cannot withdraw the boring bar to check the bore diameter you may need to use a
inside calipers
what tool is most practical to use when you must rough bore an especially long work area
multiple point boring tool
which operation on a boring mill requires the use of a power cross slide tool head
facing
