316 Flashcards
The process of giving a drilled hole a fine finish with a single-point tool is
Boring
A countersink cuts tapered enlargements at hole openings to accommodate
Screw heads
The two dimensions that describe lathe capacity are the center distance and the
Swing
To break a long chip in a tapping operation, you should
Reverse the tap half a turn
What type of reamer is held on an arbor in a machine?
Shell
An ideal tap for most tapping operations is the _____ tap
Spiral-point or gun
By what means can you hold a workpiece for turning, facing, drilling, and boring?
Hold it in a chuck
The metal between the flutes of a reamer is called the
Land
Which of the following materials requires the highest drilling speed in sfpm?
Wood
What is the suggested speed for finish cutting mild steel?
125 sfpm
The purpose of a steady rest or center rest is to support the
End of a long workpiece
The smoothness of a finishing operation depends on the ______ and on the ______
Tool sharpness……. feed rate
The device that moves with a cutting tool to keep long workpieces straight is the _____ rest
Follower
To change the speed in surface feet per minute to inches per minute, you must
Multiply it by 12
to enlarge a hole to fit an oversize bearing, you should use a
Boring tool