Standard
|
Posted.10/16/03
AST 112 –
Aircraft Metallurgy
Introduces
the types of metals used in aircraft construction and provides a study of their
properties and working characteristics.
Topics include: safety, types of metals, properties of metals, methods
of identification, heat treatment, temper designations, working characteristics
and non-destructive inspection.
|
Competency
Areas: |
Hours:: |
||
|
|
|
|
|
|
Safety |
Class |
5 |
|
|
Types of
Metals |
D. Lab |
2 |
|
|
Properties
of Metals |
P.
Lab/O.B.I. |
6 |
|
|
Methods
of Identification |
Credit |
8 |
|
|
Heat
Treatment |
|
|
|
|
Temper
Designations |
|
|
|
|
Working
Characteristics |
|
|
|
|
Non-Destructive
Inspection |
|||
|
|
|||
|
Prerequisite: |
AST 104 |
||
|
Corequisite: |
|
||
Course Guide
|
|
Competency |
After completing this section,
the student will: |
Hours |
||
|
Class |
D. Lab
|
P. Lab/ O.B.I. |
||
|
SAFETY |
2 |
2
|
0 |
|
|
Personal
safety |
Wear protective clothing when handling sharp or hot
metals. |
|
|
|
|
|
Use inhalation protection when heating or applying
chemical treatments to metals. |
|
|
|
|
|
Use eye protection when handling metals. |
|
|
|
|
Environmental
safety |
Read and
follow material safety data sheets in handling all environmentally hazardous
materials. |
|
|
|
|
8 |
0
|
0 |
||
|
Aluminum |
Discuss
the production of aluminum from mining to the manufacture of stock shapes. |
|
|
|
|
Steel |
Discuss
the production of steel from mining to the manufacture of stock shapes. |
|
|
|
|
Titanium |
Describe
how titanium is produced. |
|
|
|
|
Magnesium |
Discuss
how magnesium is produced. |
|
|
|
|
8 |
0
|
0 |
||
|
Aluminum |
Discuss
the properties of aluminum. |
|
|
|
|
Steel |
Discuss
the properties of steel. |
|
|
|
|
Titanium |
Discuss
the properties of titanium. |
|
|
|
|
Magnesium |
Discuss
the properties of magnesium. |
|
|
|
METHODS OF
IDENTIFICATION
|
8 |
1.5
|
7 |
|
|
Aluminum |
Explain the numbering systems used to identify aluminum
and aluminum alloys. |
|
|
|
|
|
Describe the surface characteristics of aluminum. |
|
|
|
|
Steel |
Explain
the number system used to identify steel. |
|
|
|
|
|
Describe
the surface characteristics of steel. |
|
|
|
|
|
Explain
the color code used to identify steel. |
|
|
|
|
|
Describe
the iron and steel spark test used to identify iron and steel. |
|
|
|
|
Titanium |
Describe
the methods of identification used to identify titanium. |
|
|
|
|
|
Describe
the surface characteristics of titanium. |
|
|
|
|
Magnesium |
Describe
methods of identification for magnesium. |
|
|
|
|
|
Describe
the surface characteristics of magnesium. |
|
|
|
HEAT TREATMENT
|
7.5 |
2
|
2 |
|
|
Markings |
Interpret
heat treatment markings found on aluminum, steel, titanium, and magnesium. |
|
|
|
|
Aluminum |
Describe
the heat treatment of aluminum. |
|
|
|
|
|
Discuss
the precipitation process (artificial agent). |
|
|
|
|
|
Explain
the effect of annealing. |
|
|
|
|
|
Describe
the process of annealing. |
|
|
|
TEMPER DESIGNATIONS
|
2 |
2
|
2 |
|
|
Marking |
Interpret
temper designation stamps found on aluminum, steel, titanium, and magnesium. |
|
|
|
WORKING CHARACTERISTICS
|
8 |
6
|
25 |
|
|
Aluminum |
Describe
the working characteristics of cold aluminum. |
|
|
|
|
|
Describe
the working characteristics of hot aluminum. |
|
|
|
|
|
Describe
the weldability of aluminum. |
|
|
|
|
|
Discuss
the capacity of aluminum to normalize. |
|
|
|
|
Steel |
Describe
the working characteristics of hot steel. |
|
|
|
|
|
Describe
the weldability of steel. |
|
|
|
|
|
Discuss
the capacity of steel to normalize. |
|
|
|
|
Titanium |
Describe
the working characteristics of cold titanium. |
|
|
|
|
|
Describe
the working characteristics of hot titanium. |
|
|
|
|
|
Describe
the weldability of titanium |
|
|
|
|
|
Discuss
the capacity of titanium to normalize. |
|
|
|
|
Magnesium |
Describe
the working characteristics of cold magnesium. |
|
|
|
|
|
Describe
the working characteristics of hot magnesium. |
|
|
|
|
|
Describe
the weldability of magnesium. |
|
|
|
|
|
Discuss
the capacity of magnesium to normalize |
|
|
|
|
Safety |
Observe
safety precautions in handling and working various metals. |
|
|
|
|
Explain
the special precautions to be observed in handling magnesium. |
|
|
|
|
|
NON-DESTRUCTIVE INSPECTION (NDI) |
6.5 |
6.5
|
24 |
|
|
Observe
safety precautions related to NDI |
|
|
|
|
|
Explain
the special safety precautions related to NDI |
|
|
|
|
|
Explain
the process of eddy current inspection |
|
|
|
|
|
Demonstrate
eddy current inspection |
|
|
|
|
|
Perform
an eddy current inspection |
|
|
|
|
|
Explain
dye penetrant inspection |
|
|
|
|
|
Demonstrate
dye penetrant inspection |
|
|
|
|
|
Perform
dye penetrant inspection |
|
|
|
|
|
Explain
magnetic particle inspection |
|
|
|
|
|
Demonstrate
magnetic particle inspection |
|
|
|
|
|
Perform
magnetic particle inspection |
|
|
|
|
|
Explain
ultra sound inspection |
|
|
|
|
|
Explain
X-Ray inspection |
|
|
|
|
|
Explain
themography |
|
|
|
|
|
Explain
laser holography |
|
|
|
|
|
Explain
radiography |
|
|
|
|
Suggested Resources
|
American
Society for Testing and Materials. (1986). Metals test methods and analytical procedures.
American
Society for Testing and Materials. (1989). Annual book of ASTM standards, 1989 (Vol.
03.04).
Balakrishnan, V., & Bottani, C. E. (Eds.).
(1986). Mechanical properties and behavior of solids:
Plastic instabilities.
Boer, C. R., et
al. (1986). Process modelling for
metal forming and thermomechanical treatment.
Bonacci, N. (1987). Aircraft sheet metal.
Bonnelle, J. P., & Delmon, B. (Eds.).
(1983). Surface properties and catalysis by non-metals.
Brooks, C. R. (Ed.).
(1982). Heat treatment, structure, and properties of nonferrous alloys.
Center
for Occupational Research & Development Staff. (1987). Metallurgy and metal properties.
Fodor, R. V. (1989). Gold, copper, iron: How metals are formed, found
and used.
Hasegawa, R. (Ed).
(1983). Glassy metals: Magnetic, chemical, and structural properties.
Heat treatment and
surface engineering. (1988).
Hernando, A., et al. (Eds.).
(1988). Magnetic properties of amorphous metals.
Loretto, M. H. (1985). Dislocations and properties of real materials.
Panigrahi,
S. C. (1987). Testing, evaluation and measurements in metal
casting.
Touloukian,
Y. S., & Ho, C. Y. (Eds.). (1981). Properties of selected ferrous alloying elements.
Jeppesen
Sanderson, Inc. A&P Technician Airframe Textbook.
Aviation Supplies
& Academics, Inc. Aviation Maintenance Technician Series
General.
TPC Training Systems. (1982). Introduction to metals [Videocassette].
TPC Training Systems.
(1982). Properties of metals [Videocassette].