Description
Objectives
Learning Objective 1 • Describe the relationship between heat and metal and identify preheating methods.
- Describe the relationship between heat and metal.
- Identify and describe methods used to preheat metal prior to welding.
- Identify and describe devices and products used to measure temperature.
Learning Objective 2 • Describe interpass temperature control and postheating processes.
- Describe interpass temperature control.
- Describe various postheating processes.
Performance Task
Performance Task 1 (Learning Objectives 1 and 2) • Preheat base metal to 350°F (177°C) and verify preheat using a temperature-indicating device.
