Standard

 

MCH 107 - Characteristics of Metals/Heat Treatment I

Course Description

Introduces the properties of various metals, production methods, and identification of ferrous and non-ferrous metals. Topics include: metallurgy and heat treatment.

 

Competency Areas

Hours

 

Metallurgy

Class

3

Heat Treatment

D. Lab

2

 

P. Lab/O.B.I.

0

 

Credit

4

 

 

 

Prerequisite:

Provisional admission

Corequisite:

 

 

Course Guide

 

Competency

After completing this section, the student will:

Hours

Class

D.Lab

P.Lab/

O.B.I.

METALLURGY

20

0

0

Physical properties of metals

Define all the terms that describe the physical properties of metals.

 

 

 

Manufacture of ferrous metals

Describe non-ferrous metal, and the purification processes for the common non-ferrous metals used in industry.

 

 

 

Chemical composition of steel

Outline the variation found in steel alloys, and how each affects the physical properties, cost, and machinability of the steel.

 

 

 

 

Explain crystal structure of metals.

 

 

 

Classifications of steel

Explain the numbering system used by the agencies that set standards for production of metal alloys.

 

 

 

Non-ferrous metals

Discuss metallurgical properties of ferrous and non-ferrous metals.

 

 

 

HEAT TREATMENT

10

20

0

Types

Define the terms used for each type of heat treatment (Example: hardening, anneal, temper, draw, etc.).

 

 

 

Temperature

Explain upper and lower critical temperature, austinizing temperature, phase change temperature, and tempering limits on temperature.

 

 

 

Quenching media

List the quenching solutions by their rank in severity and rate of agitation.

 

 

 

 

Explain how the severity of quenching is compared to that of still water.

 

 

 

 

Explain how severity of the quenching process affects the physical properties of the metal.

 

 

 

Testing

Determine the hardness of metals with a Rockwell hardness tester.

 

 

 

 

Explain how pendulum testing, charpy test, and tensile testers relate to the properties of metals.

 

 

 

 

Suggested Resources

 

Books

 

Brown, W. C., et al. (1985). Modern general shop. South Holland, IL: Goodheart-Willcox.

Feirer, J. L. (1980). General metals (5th ed.). New York: McGraw-Hill.

Kibbe, R. A., et al. (1991). Machine tool practices (4th ed.). New York: John Wiley & Sons.

Matt, S. R. (1985). Machine tool operations: An introduction. Belmont, CA: Wadsworth.

Olivo, C. T. (1987). Fundamentals of machine technology. Belmont, CA: Wadsworth.