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Home > Ordnance Documents and other related manuals > > Task 1. Describe The Processesfor Identifying the Physical and Mechanical Properties of Various Metals.
2. Identification of Physical And Mechanical Properties of various Metals.

Metal Properties, Characteristics, Uses, And Codes
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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






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