Title: Identify types of materials used in machining operations.
Course: Precision Machining Technology I (13204-I) > Section: Applying Metalworking Theory

Identification should include

- identifying common materials and their principal properties relevant to machining tasks
- recognizing differences among ferrous and nonferrous materials
- acknowledging plastics and other nonmetal material properties
- recognizing magnetic and ductile materials
- explaining the changes to materials caused by heat-treating

- predicting the machinability of a part, based on its appearance, its call-out value on the blueprint, and its supplied hardness value.

Process/Skill Questions

- How might a file be used to determine the hardness of steel?
- How can a magnet help determine material type?
- How are plastics and nonmetals machined?