315 Flashcards
iron parts are usually made from
castings
what do that last two digits of the sae steel code indicate
percentage of carbon
the ability of a steel to resist cutting and scratching is called
hardness
the process that eliminates brittleness in a steel is
tempering
to remove cast iron chips safely from a machine you should use a
brush
what tool should you use to lay out and measure distances
dividers
to prevent cast iron surface plates from rusting coat them lightly with
oil
to raise a surface gauge for measuring above its height support it on a
box parallels
the distance between the centers of two adjacent holes on a bolt circle is the
chord or pitch chord
you should carry pointed tools in a tote box or in a
pouch fastened to your belt
the part of a lathe that holds the dead center is called the
tailstock
to remove a live center from a lathe you should tap it with a
knockout bar
for boring operations on a lathe you should hold the workpiece in a
chuck
what should you use to remove a chuck that screws on a lathe spindle
block of wood
to mount a workpiece on a machine table you should hold it in a
vise
