TPC 316 Machine Shop Turning Operations Flashcards
When you turn a workpiece in a lathe, the carriage must be connected to the
Cross slide
Feed Rod
Gear box
Lead screw
Feed Rod
The two dimensions that describe lathe capacity are the center distance and the
Bed length
Chuck size
Gear ratio
Swing
Swing
By what means can you hold a workpiece for turning, facing, drilling, and boring?
Clamp it on a faceplate
Hold it on a mandrel
Hold it in a chuck
Mount it between centers
Hold it in a chuck
The inside surface of what type of Chuck is shaped to fit the stock it holds?
Collet
Independent
Spindle
Universal
Collet
The purpose of a steady rest or center rest is to support the
Center of a long boring bar
End of a long workpiece
Small end of a mandrel
Work is where it’s being cut
End of a long workpiece
You can mount is eccentric or irregularly shaped workpieces in a chuck or
Between lathe centers
Directly on the spindle
In a lathe dog
On a faceplate
On a faceplate
The device that moves with a cutting tool to keep long work pieces straight is the ______ rest
Center
Compound
Follower
Steady
Follower
What is the suggested speed for finish cutting mild steel?
75 sfpm
100 sfpm
125 sfpm
150 sfpm
125 sfpm
The smoothness of a finishing operation depends on the ______ and on the______
Cutting speed …… tool sharpness
Cutting speed ……. Tool angle
Feed rate …… tool angle
Tool sharpness …… feed rate
Tool sharpness…… feed rate
The process of giving a drilled hole a fine finish with a single-point tool is
Boring
Countersinking
Reaming
Tapping
Boring
The principal parts of a twist drill are the body, shank, and
Flutes
Land
Point
Web
Point
Which of the following materials requires the highest drilling speed in SFPM?
Cast iron
Plastic
Stainless steel
Wood
Wood
To change the speed in surface feet per minute to inches per minute, you must
Multiply by 3.1416
Divided by 3.1416
Multiply it by 12
Divided by 12
Multiply it by 12
To enlarge a hole to fit an oversized bearing, you should use a
Boring tool
Centerpunch
Core drill
Twist drill
Boring tool
On a vertical lathe or boring machine, the ______ advances the boring tool into the work.
Arbor
Crossrail
Overhead ram
Slide
Overhead ram
The metal between the flutes of a reamer is called the
Body
Land
Neck
Tang
Land
When you need a very accurate hole, what is the best method to use?
Drilling on a drill press
Drilling on a lathe
Hand reaming
Machine reaming
Hand reaming
What type of reamer is held on an arbor in a machine?
Expansion
Rose
Shell
Stub
Shell
You can remove burrs on the cutting edges or teeth of Reamers with a(n)
Crocus cloth
Emery board
Fine file
Oilstone
Oilstone
A countersink cuts tapered enlargements at hole openings to accommodate
Capscrew heads
Dowel pins
Hex head bolts
Screw heads
Screw heads
The most common form of precision threads for moderate power transmission needs is the ______ thread
Acme
Buttress
Crown
Square
Acme
Cold forming or fluteless taps are used to tab what kind of material?
Brittle
Ductile
Hard
Malleable
Ductile
In a dry seal, the tiny tunnel between the pipe and fitting is filled with
Flattened metal
Gasketing material
Sealing compound
Trapped air
Flattened metal
An ideal tap for most tapping operations is the ______ tap
Cold forming
Fluteless
Spiral – fluted
Spiral - point or gun
Spiral – point or gun
To break a long chip in a tapping operation, you should
Back the tap out of the hole
Bend it over a sharp edge
Reverse the tap half a turn
Use a chisel or pliers on it
Reverse the tap half a turn
