Welding Skills

Course 1 – Introduction to Welding

Prerequisites: This lesson is designed so that no prior knowledge is required.

Description: This lesson covers basic welding terminology and principles. Various types of welding methods are introduced including: shielded metal arc, gas tungsten arc, gas metal arc, and oxygen fuel gas, and the use of consumable and non-consumable electrodes are covered. Metallurgy, and how it relates to welding, is also covered. This includes tensile strength, ductility, hardness, corrosion resistance, and thermal properties.

Objectives:

• Define the basic terms associated with basic welding procedures
• Describe the properties and characteristics of various types of arc and gas welding processes
• Identify the components used in various types of arc and gas welding processes
• Distinguish between the applications of consumable and non-consumable electrodes
• Identify the basic composition and function of shielding gases
• Define the key metallurgical terms that apply to welding
• Distinguish between low, medium, and high carbon steels and define a metal’s preferred analysis
• Recognize the AISI system of metal classification

Course 2 – Joint Design and Symbols

Prerequisites: This lesson is designed for participants who are familiar with the basic principles of welding and metallurgy.

Description: This lesson covers the four basic elements of joint design, the five basic welding joints including their individual parts, and the standardized names given to the parts of fillet and groove welds. This lesson also covers the separate components of welding symbols, how the symbols are constructed, and how to read these symbols

Objectives:

• Identify the four basic elements of joint design including the type of joint, joint preparation, the type of weld used, and the dimensions of the welded joint
• Identify where information related to joint design may be found
• Define the five basic joints used in welding
• Define the three basic types of corner joints
• Describe the factors that go into choosing a joint design for a specific application
• Define the five basic types of welds
• Identify the parts and characteristics of a fillet weld and its variations and preparation
• Identify the parts and characteristics of a groove weld and its variations and preparation
• Identify the characteristics and applications of plug welds, spot welds, and surface welds
• Describe the components and construction of welding symbols and the information they convey