Standard |
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, and working characteristics.
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Competency Areas |
Hours
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Safety |
Class |
5 |
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Types of Metals |
D. Lab |
2 |
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Properties of Metals |
P. Lab/O.B.I. |
8 |
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Methods of Identification |
Credit |
8 |
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Heat Treatment |
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Temper Designations |
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Working Characteristics |
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Prerequisite: |
AST 104 |
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Corequisite: |
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Course Guide |
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Competency |
After completing this
section, the student will: |
Hours |
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Class |
D.Lab |
P.Lab/ O.B.I. |
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SAFETY |
2 |
2 |
0 |
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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. |
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Environmental safety |
Read and follow material safety data sheets in handling all environmentally hazardous materials. |
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8 |
2 |
8 |
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Aluminum |
Discuss the production of aluminum from mining to the manufacture of stock shapes. |
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Steel |
Discuss the production of steel from mining to the manufacture of stock shapes. |
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Titanium |
Describe how titanium is produced. |
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Magnesium |
Discuss how magnesium is produced. |
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8 |
4 |
16 |
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Aluminum |
Discuss the properties of aluminum. |
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Steel |
Discuss the properties of steel. |
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Titanium |
Discuss the properties of titanium. |
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Magnesium |
Discuss the properties of magnesium. |
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METHODS OF IDENTIFICATION
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8 |
2 |
8 |
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Aluminum |
Explain the numbering systems used to identify aluminum and aluminum alloys. |
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Describe the surface characteristics of aluminum. |
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Steel |
Explain the number system used to identify steel. |
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Describe the surface characteristics of steel. |
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Explain the color code used to identify steel. |
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Describe the iron and steel spark test used to identify iron and steel. |
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Titanium |
Describe the methods of identification used to identify titanium. |
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Describe the surface characteristics of titanium. |
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Magnesium |
Describe methods of identification for magnesium. |
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Describe the surface characteristics of magnesium. |
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HEAT TREATMENT
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8 |
2 |
16 |
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Markings |
Interpret heat treatment markings found on aluminum, steel, titanium, and magnesium. |
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Aluminum |
Describe the heat treatment of aluminum. |
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Discuss the precipitation process (artificial agent). |
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Explain the effect of annealing. |
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Describe the process of annealing. |
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TEMPER DESIGNATIONS
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8 |
2 |
8 |
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Marking |
Interpret temper designation stamps found on aluminum, steel, titanium, and magnesium. |
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WORKING CHARACTERISTICS
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8 |
6 |
24 |
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Aluminum |
Describe the working characteristics of cold aluminum. |
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Describe the working characteristics of hot aluminum. |
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Describe the weldability of aluminum. |
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Discuss the capacity of aluminum to normalize. |
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Steel |
Describe the working characteristics of hot steel. |
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Describe the weldability of steel. |
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Discuss the capacity of steel to normalize. |
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Titanium |
Describe the working characteristics of cold titanium. |
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Describe the working characteristics of hot titanium. |
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Describe the weldability of titanium |
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Discuss the capacity of titanium to normalize. |
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Magnesium |
Describe the working characteristics of cold magnesium. |
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Describe the working characteristics of hot magnesium. |
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Describe the weldability of magnesium. |
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Discuss the capacity of magnesium to normalize |
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Safety |
Observe safety precautions in handling and working various metals. |
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Explain the special precautions to be observed in handling magnesium. |
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Suggested Resources |
American
Society for Testing and Materials.
(1986). Metals test methods and analytical procedures. Philadelphia: Author.
American
Society for Testing and Materials.
(1989). Annual book of ASTM standards, 1989 (Vol. 03.04). Philadelphia: Author.
Balakrishnan,
V., & Bottani, C. E. (Eds.). (1986).
Mechanical properties and behavior
of solids: Plastic instabilities. Teaneck, NJ: World Scientific.
Boer,
C. R., et al. (1986). Process
modelling for metal forming and thermomechanical treatment. New York: Springer-Verlag.
Bonacci, N.
(1987). Aircraft sheet metal.
Casper, WY: IAP.
Bonnelle,
J. P., & Delmon, B. (Eds.). (1983).
Surface properties and catalysis
by non-metals. Norwell, MA: Kluwer
Academic.
Brooks,
C. R. (Ed.). (1982). Heat treatment, structure, and properties of
nonferrous alloys. Materials Park,
OH: ASM.
Center
for Occupational Research & Development Staff. (1987). Metallurgy and metal properties. Waco, TX: Author.
Fodor,
R. V. (1989). Gold, copper, iron: How
metals are formed, found and used.
Hillside, NJ: Enslow.
Hasegawa,
R. (Ed). (1983). Glassy metals: Magnetic, chemical, and
structural properties. Grand
Rapids, MI: CRC Press.
Heat
treatment and surface engineering. (1988).
Materials Park, OH: ASM.
Hernando, A.,
et al. (Eds.). (1988).
Magnetic properties of amorphous
metals. New York: Elsevier.
Loretto, M. H.
(1985). Dislocations and properties of real materials. New York: Gower.
Panigrahi,
S. C. (1987). Testing, evaluation and
measurements in metal casting.
Columbia, MO: South Asia Books.
U.S.
Department of Transportation (F.A.A.).
(1976). Airframe and powerplant mechanics:
General handbook. Casper,
WY: IAP.
Touloukian,
Y. S., & Ho, C. Y. (Eds.). (1981).
Properties of selected ferrous
alloying elements. New York:
McGraw-Hill.
TPC
Training Systems. (1982). Introduction
to metals [Videocassette]. Buffalo
Grove, IL 60089.
TPC Training Systems. (1982). Properties of metals [Videocassette]. Buffalo Grove, IL 60089.