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Home > Ordnance Documents and other related manuals > > Lesson 1. Practical Exercise- Answers - od164480078
Practical Exercise cont. - od164480077
Lesson 1. Practical Exercise- Answers cont. - od164480079

Milling Machine Operations
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MILLING MACHINE OPERATIONS - OD1644 - LESSON 1/PE 1
LESSON 1.
PRACTICAL EXERCISE - ANSWERS
Requirement
a.
The  knee-type  milling  machines  are  characterized  by  a  vertical
adjustable worktable resting on a saddle that is supported by a knee.
b.
The adjustment of the worktable and various attachments for performing
a variety of special milling operations and the universal milling machine is
of the Ram-type.
c.
The spindle
d.
Arbor support
e.
Size, horsepower, model, and type
f.
Draw-in bar
g.
Dividing head or gear cutting attachment
h.
They should be protected with pieces of soft metal.
i.
Dog and setscrew
j.
40 turns of the index crank revolves the spindle one complete turn (40
to 1 ratio).
k.
24 holes
l.
Right angles
m.
The type of materials being cut and the size of the cutter being used
n.
Angular milling is milling flat surfaces that are neither parallel nor
perpendicular to the axis of the milling cutter.
o.
The teeth on the periphery of the cutter
p.
After 40 hours
q.
0.0003 inch
r.
Severe wear and strain on the milling machine
s.
Plain spiral-tooth cutter
72






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