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Milling Operations
Machinist Apprenticeship 2- Manual Theory
27
Other
Not Applicable
11/21/2019

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Cards

Term
When the workpeice feeds against rotation of cutter(Up Milling)
Definition
Conventional milling
Term
When workpiece feeds w/ rotation of cutter (Down Milling)
Definition
Climb Milling
Term
When is the chip thin and gets progressively thicker?
Definition
Conventional
Term
What is a downside of conventional milling?
Definition
-Needs more horsepower
-Surface Finish is not as good
-Need Rigid Setup
Term
When can you climb mill?
Definition
When there is no backlash present . Most importantly when there is a backlash eliminator.
Term
What type of milling reduces breakout? and burnishes workpiece
Definition
Climb Milling
Term
Purpose of plain and face milling
Definition
Cut a flat surface
Term
What type of milling leaves surface parallel to axis of cutter?
Definition
Plain/Slab/Peripheral
Term
What milling leaves surface at right angle to cutter?
Definition
Face milling
Term
Where is most of the cutting taking place on face mills
Definition
On the periphery
Term
Where is a keyway and keyseat?
Definition
Keyway in a bore, keyseat on a shaft
Term
What is a slot?
Definition
A groove that is deep in relation to its width.
Term
What type of cutter leave run-outs when cutting a slot
Definition
Plain and Side Mill
Term
What kind of endmill do you use for blind slots?
Definition
Centre Cutting
Term
When cutting keyseats, what tool allows you to cut up to shoulder?
Definition
Endmills
Term
What does the 3-4 digits on a woodruff key mean?
Definition
First Two Digits x 1/32= Width
Second Two Digits x 1/8= Diameter
Term
Where is the depth of a keyseat measured from?
Definition
From the flat.
Term
What is the usable length of a keyseat?
Definition
Length which does not include any run out or radius left by the cutter on either end.
Term
Ways of centring the shaft under the cutter?
Definition
Shim/paper method
Edge Finder
Term
What tool is used for cutting keyways easier?
Definition
Slotting Attachment.
Term
What type of milling cuts two opposite, parallel faces of a workpiece? And what shape is it ideal for cutting
Definition
Straddle. Good for cutting squares and hexagons.
Term
What does gang milling do to a work piece. And what do you do with the helixes of the cutters?
Definition
Cuts a contour, use opposite helix to counter end thrust.
Term
Form cutters are mounted mostly on what?
Definition
Horizontal Arbours.
Term
Process of cutting s T-Slot?
Definition
Endmill then use Tslot Cutter
Term
What is Hobbing?
Definition
A fast and Accurate method of cutting gears
Term
How is the timing on hobbing accomplished?
Definition
The gear blank is first gashed(grooves)
Term
What is P, M, K, N, S, and H mean on inserts?
Definition
P-Mild Steel(Pleasant)
M-Stainless (Miserable)
K-Cast Iron (Kast)
N-Non Ferrous (Aluminum)
S-Heat Resistant Alloys
H-Hardened Steel (Hard)
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