METAL PROPERTIES, CHAR, USES, AND CODES - OD1643 - LESSON 1/TASK 1
LESSON 1
THE PHYSICAL AND MECHANICAL
PROPERTIES OF VARIOUS METALS, AND USE OF
THE HARDNESS TESTER, CHEMICAL ANALYSIS, AND
BENCH GRINDER TO IDENTIFY VARIOUS METALS
TASK 1.
Describe the processes for identifying
the
physical
and
mechanical properties of various metals.
CONDITIONS
Within a self-study environment and given the subcourse text, without
assistance.
STANDARDS
Within three hours
REFERENCES
No supplementary references are needed for this task.
1.
Introduction
Most of the metals and alloys used in Army materiel can be either
welded or machined.
Repair part components, such as gears, shafts,
and wheel vehicle body and tank hull components, can be repaired or
fabricated.
Repair or fabrication involves the employment of the
various welding or machining processes available to intermediate
direct
support
(IDS)
and
intermediate
general
support
(IGS)
maintenance units in the field.
Hardware items such as nuts, bolts, screws, pins, and fuel line
fittings can be machine fabricated, however, repair parts such as
these are not always readily available in a combat situation.
Further, such items as jigs and devices used in the repair of
materiel are not stocked in the supply system.
To compensate for
these situations, IDS and IGS maintenance units in the field carry a
supply stock of various metals from which to fabricate and/or
1
Previous Page
